Reading prompt from stdin...
OpenAI Codex v0.161.0
--------
workdir: /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
model: gpt-6-astra
provider: openai
approval: never
sandbox: danger-full-access
reasoning effort: xhigh
reasoning summaries: none
session id: 01a14631-1447-7d53-8692-9ad1d4615647
--------
user
Build heavy space cruiser in wet-navy battleship style: a long ship-like hull with a sharp flared bow, a stepped bridge superstructure, three triple-barrel main gun turrets on top and one under the hull, secondary twin turrets along the flanks, missile batteries, a big engine cluster at the stern (the one on sheet.jpg) as a production, REALISTIC 3D game asset in Blender, for Forge's asset library. Look at the reference
images in this directory with your image tool first: sheet.jpg. It must look like a real object from a modern
third-person game up close: never blocky, never toy-like, never flat colours.

Blender 5.2 is headless on another machine. Write bpy scripts here and run them with:
  ssh gex44 /root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/<script>.py
(first `ssh gex44 mkdir -p /root/fal-author/heavy-cruiser-naval-v1`, scp scripts and any textures to gex44:/root/fal-author/heavy-cruiser-naval-v1/, scp renders back here, then
LOOK at them with your image tool). Iterate until the renders match the references: silhouette, proportions, every
named part, materials. Only one Blender job on the GPU box at a time from you.

Quality bar:
- Real dimensions in metres: 450 m long, 70 m wide, 90 m high.
- Construction detail as geometry where it shapes the silhouette or catches light: bevelled edges everywhere (no razor
  box edges), real thickness, frames around openings, trims, rails, fittings, bolts, ropes, cables, small parts. No
  z-fighting, no gaps, nothing floating, smooth shading on round parts.
- Photographic materials: use CC0 Poly Haven textures (download 1k or 2k jpg maps from https://dl.polyhaven.org/file/
  ph-assets/Textures/jpg/<res>/<id>/<id>_<map>_<res>.jpg, maps diff, nor_gl, arm; pick ids by browsing
  https://api.polyhaven.com/assets?t=textures) mixed with node detail (rust streaks, grime, moss, edge wear, salt), then
  BAKE each material's result with Cycles to image textures (base colour, normal, ORM) so it survives glTF export.
  List every Poly Haven id you used in NOTES.md (licence evidence). No other image sources.
- Budget: 80k to 200k triangles, at most 9 materials, texture images at most 2048 px, GLB at most 12 MB.

Export contract (glTF binary .glb, Y up, metres): Nose toward +Z, up = +Y, +X = the ship's LEFT side, centred on X = 0; origin (0,0,0) at the ship's centre of mass (about the middle of the hull), the ship level and flying: landing gear, if the design has any, is RETRACTED with its doors closed. Apply transforms and modifiers. No cameras, lights or
helpers in the GLB. GAME WEIGHT overrides the budget above: every texture image at most 1024 px, ORM / occlusion maps at most 512 px; share baked texture sets between parts and use tiling materials + trim textures on big surfaces. BIG SHIP: a 1024 bake cannot hold a hull this size: use tiling hull-plate materials and trim textures (panel strips, window strips, vents) with world-scale UVs. Detail must read at three distances: the silhouette (big masses, towers, engine blocks), the middle (superstructure, turrets, hangar mouths, antenna forests, armour belts) and close up (greebles, pipes, panel seams, rows of lit windows at human scale). Small parts may be instanced/linked duplicates. Separate named mesh nodes: Hull (everything fixed to the hull). Every MOVING part is its own node with its object origin ON its pivot: Turret_1..Turret_n (each gun turret, origin on its vertical traverse axis, turns about its local Y) each with a child Gun_1..Gun_n (the barrels, origin on the elevation trunnion axis, elevates about X); Canopy (cockpit canopy, origin on its hinge) on craft with a canopy; and the extra moving parts named in the description. Empty nodes (no mesh): Thruster_1..Thruster_n at the centre of every main engine nozzle exit (games put flame and glow there; exhaust points to -Z), Muzzle_1..Muzzle_n at every barrel tip (child of its Gun, or of Hull for fixed guns), Hardpoint_1..n (missile and torpedo launch points), Seat_Pilot (pilot hip point) on craft with a cockpit, Camera_Chase (a good third-person chase camera point behind and above), Light_Nav_L (left tip, red), Light_Nav_R (right tip, green), Light_Beacon. Materials: the glowing inside of every engine nozzle = one material named "Engines" (emissive, colour as described, modest strength, games raise it); lit windows, running lights and glowing details = one material "Lamps" (emissive); cockpit or bridge glazing = one material "Glass" (alpha BLEND, tinted) with a visible cockpit (seat, panels, stick) behind it on small craft. In nodes.json add "axes": for every moving node, the unit axis it turns about in its parent's space. PAINT CONTRACT (how games get faction colours of one model): the main hull colour lives in ONE material named exactly "Paint". Its base colour TEXTURE holds only light neutral detail (near white, with panel lines, grey grime, engine scorch, micro-meteorite pitting and chipped edges baked in) and its baseColorFactor holds the paint colour; default factor = [0.32, 0.34, 0.36] (dark grey). A game changes that factor, so nothing else (bare metal, engines, glass, lamps, weapons, cockpit) may use Paint. In nodes.json add "paints": six good paints for this model as linear RGB triples with names, the default first, in the spirit of: naval grey, gunmetal, olive drab, desert sand, arctic white, deep navy, black, crimson; and render paints.png: a 3x2 grid of the same 3/4 view in those six paints (EEVEE or low-sample Cycles) to prove the recolour works. MOVING PARTS: never apply transforms to a moving node. Check it in Blender before export: rotate each moving node 30 degrees in a test render; nothing may leave its place. No text, numbers, insignia, faction emblems, flags or logos anywhere (games add their own factions). ORIGINAL DESIGN: never model a famous film, TV, anime or game ship (no X-wing, TIE, Star Destroyer, Millennium Falcon, Enterprise, Serenity, Normandy, Viper, Valkyrie, Gundam, Halo, Homeworld, EVE, Elite or Expanse ship): if the sheet looks like one, keep its proportions and parts but make the silhouette details, nose and engines your own. RENDERS: final.png and paints.png on a dark space backdrop (near black with a faint blue gradient, no ground) lit by a strong white key light from the upper front left plus a soft cool fill, so every part reads. Keep this directory clean: put any helper tools you install (node_modules, vendored three.js, browser checks) under /tmp, never here. Pace: deliver a first complete GLB within about 40 minutes, then use what is left of about 80 minutes to improve what the renders show is weakest. Use Cycles with the GPU (OptiX/CUDA) and modest samples for bakes and renders. 
Deliver in this directory: heavy-cruiser-naval.glb; build_heavy-cruiser-naval.py (ONE script that builds the whole asset from an empty scene,
downloads/loads its textures, bakes and exports: the GLB you deliver must come from a clean run of it); final.png
(1920x1080 Cycles render, 3/4 front view, soft daylight); side.png (orthographic side); clay.png (same view as final,
plain grey material); nodes.json (every node name with world position + overall bounding box); NOTES.md (6 lines:
what you made, triangle count, materials, texture sizes, Poly Haven ids, what still differs from the references).
Stop when you judge it matches the references and would not look out of place in a modern realistic game.

warning: `--dangerously-bypass-hook-trust` is enabled. Enabled hooks may run without review for this invocation.
warning: `--dangerously-bypass-hook-trust` is enabled. Enabled hooks may run without review for this invocation.
codex
I’ll inspect the reference and Forge rules first, then build and bake the cruiser, check its renders, and validate the exported game asset.

hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
exec
/bin/bash -lc 'cat /home/claude-agent/AGENTS.md' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
<!-- GENERATED from CLAUDE.md by forge-hub/hub/gen_agents_md.py — do not edit by hand. -->
<!-- Re-run: python3 /home/claude-agent/forge-hub/hub/gen_agents_md.py -->

# Forge: AI-Powered App Factory
Single-tenant server (16GB ARM64 Hetzner), runs alongside Detecteev (forensics platform).

## Navigation
- **Forge app**: `/home/forge/app/` (Python, DBOS workflows)
- **Forge UI**: `/home/forge/ui/` (React + FastAPI, port 8765)
- **Detecteev**: `/home/claude-agent/detecteev/` (Next.js + FastAPI)
- **Project sandboxes**: `/home/forge/data/projects/{slug}/sandbox/`
- **Skills**: `/home/forge/app/skills/` (reasoning + stack-specific)
- **Deployed apps**: `/home/forge/deploys/{slug}/`
- **Specs & plans**: `/home/claude-agent/forge-build/`

## Architecture at a Glance
- **Pipeline**: intake → ideation → research → challenge → business → prd → feature-spec → stack-selection → blueprint → scaffolding → feature-build → dx-audit → product-review
- **Native Claude CLI calls use `--model sonnet`**. Provider adapters explicitly select their own API model; DeepSeek uses `deepseek-flash[1m]` through Claude Code.
- **Autonomy**: all stages auto by default, no human gates
- **Deploy**: Docker containers at `{slug}.forge.le-borgne.fr` via Traefik
- **Feedback loop**: report issue → AI drafts fix → user approves → auto-redeploy

> ⚠️ The pipeline above is the **legacy Personal Forge** (forge.le-borgne.fr). The live product is **Forge Corp** — multi-box, multi-tenant. Read the next section for current topology.

## Forge Corp topology & deploy architecture (CURRENT — read this)

**Boxes & roles** (each box has its OWN `/home/claude-agent`, memory store, and CLAUDE.md — they do NOT share):
- **local** `204.168.129.84` — orchestrator. Opus planning, this memory store, the `coord` bus. No app/infra runs here.
- **ax42** `5.9.32.176` (`ssh root@5.9.32.176`) — Corp **Engine** (the build+deploy pipeline `deploy_sandbox`) + Postgres **primaries**. Canonical Engine source: `/home/claude-agent/forge-monorepo/apps/forge-engine/` (module `forge_engine`).
- **box1** `136.243.170.223` (`ssh box1`) — Corp **app-runner**: deployed tenant apps (zero/friends/recommerce) run here + PG **standbys**.
- **gex44** `5.9.10.114` (`ssh root@5.9.10.114`) — **Factory** (auth/Google-OAuth proxy + tenant UI) + inference (Flux/3d/LiteLLM) + **Caddy edge**. Canonical Factory source: `/home/claude-agent/forge-monorepo/apps/forge-corp-factory/`.
- **prod** `46.224.168.31` (`ssh prod`) — **Tower** (operator control plane) + dashboard; also legacy Personal Forge + Detecteev.

**Canonical source = the live HOST trees, NOT git.** The Engine is image-baked (no bind-mount): deploy = `docker build` from the ax42 host source; Factory builds from the gex44 host source. The GitHub repo `T1misageek/forge-monorepo` is a periodic **snapshot/backup**, NOT the build source. NEVER treat git as source of truth. Before any Engine/Factory rebuild, reconcile **host ← live container** (a single-file rsync from the mirror silently drops live state). httpx is in the Engine container, not host Python.

**Engine runs blue/green since 2026-09-02 13:11 UTC.** nginx `forge-engine-front` owns host `:8000` + docker alias `forge-engine`; Engine instances are `forge-engine-<ts>` (no host port). There is NO container named `forge-engine` any more: use `docker exec $(engine-live) …`, `docker logs $(engine-live)`. Deploy = `engine-deploy` (= `deploy.ax42.sh`: build → start new instance → `engine-switch` nginx reload → drain old, **no idle gate, nothing killed**); `engine-rollback` flips back (refuses a stopped previous); `engine-restart` no-arg = `engine-deploy --no-build`. **Builds AND refine turns survive an instance death** (P1 09-02 + P2 09-03): a 15 s sweep adopts orphaned runs (`pipeline/adopt.py`) and refine turns (`refine/adopt.py`: `metadata.active_turn`, `claude --resume` of the shared transcript store `~/.claude-engine`), proven by hard-kill on pausetest tenants. Never kill an instance without reading `/admin/inflight` first. **P3 (09-03)**: brief submits are idempotent (`X-Forge-Idempotency-Key` = Factory brief id → `runs.idempotency_key`, replay = 200 + `x-forge-idempotent-replay: 1`); the Factory retries only when Engine `/health` advertises `capabilities.idempotent_submit`; the reconciler re-polls `failed` runs < 6 h. `/admin/instance`, `/admin/inflight`, `POST /admin/drain` (consumer Bearer key). Detail: memory `project_engine_zero_downtime_deploys.md`.

**Deploy pipeline `deploy_sandbox`** (`forge_engine/deploy/__init__.py`, synchronous): Step 0 Dockerfile/.env → 0b telemetry route → 0c connectors → 0d cache → 1 build → 1b transport to box1 → 2 run (reaps prev container immediately, so **no `-prev` rollback exists** by later steps) → 3 inspect IP → 4 DNS → 5 traefik → **6 authed-smoke gate**.

**Step 6 — deploy-time authed-smoke gate (`forge_engine/deploy/smoke.py`)**: after cutover, mints a REAL synthetic session and GETs the app's post-login routes (pages referencing `requireUser`/`getCurrentUser`). Catches the "builds + homepage-200 but 500s after Google login" class (e.g. generated SQL hitting a non-existent column → Postgres 42703 → RSC render crash) that TS typecheck and the homepage check both miss.
- ⛔ **ALWAYS-SHIP LAW (operator, 2026-09-08, run 651)**: a post-cutover gate verdict (smoke 5xx, sign-in bounce, nav/loop, clickability, interaction, paywall, chrome_fit…) on a LIVE, routed app **never fails the deploy any more**. `forge_engine/deploy/ship_policy.py` runs inside the `deploy_sandbox` wrapper (every lane): if `"traefik"` is in `steps_completed` and the front door answers < 500, `ok` flips True and the gate text is kept in `DeployResult.shipped_with_findings`, the corp-deploy `gate_report`, and `runs.meta.shipped_with_findings` (ERROR log `SHIPPED WITH FINDINGS`). Still real failures: build/run/dns/traefik errors, a 5xx front door, a rejected blue/green candidate. Kill switch `FORGE_ALWAYS_SHIP=0`. Memory `feedback_always_ship_live_builds.md`.
- Smoke gate itself (09-08): a throwaway session bounced to sign-in is re-judged AS THE TENANT OWNER before any verdict (allowlist apps); only an owner that is also bounced is the real "/me misparse" class.
- Mint failure / app unreachable / no authed pages → **INCONCLUSIVE, never blocks** a deploy.
- **Mint path**: Engine can't reach the Factory DB, so it POSTs `https://forge.{tenant}.ohmyunicorn.com/api/auth/oauth/google/_smoke` (in `forge_corp/api/routes/oauth_google.py`) guarded by header `x-forge-smoke-secret` (wrong/unset → 404). Shared secret in `/home/claude-agent/.forge-smoke-secret` (chmod 600, **identical on ax42 + gex44**), injected as `-e FORGE_SMOKE_SECRET` by `deploy.ax42.sh` (Engine) and `deploy.sh` (Factory). Absent secret ⇒ /_smoke stays 404 ⇒ smoke INCONCLUSIVE (never blocks).
- **Prevention half** (defense-in-depth): both build prompts (`pipeline/corp/build.py` + `pipeline/fast/fast_build.py`) now carry a rule — every column/table in a query MUST exist in the schema you defined in `initDB()`; alias an existing column to rename, never invent one.
- Detail in memory: `reference_authed_smoke_gate.md`, `reference_authed_page_sql_column_gap.md`.

## Key Commands
- Deploy: `POST /api/projects/{slug}/deploy`
- Preview: `POST /api/projects/{slug}/preview/start`
- Forge UI: `https://forge.le-borgne.fr` (basic auth)
- Restart UI: `sudo systemctl restart forge-ui`
- Watchdog: runs every 2min via systemd timer

## Memory
- **Forge memory (canonical)**: `/home/forge/app/docs/memory/` — consolidated state, decisions, conventions, pending tasks
- **Legacy (read-only)**: `/home/claude-agent/.claude/projects/-home/memory/` — kept for reference, no longer updated

## Operator preferences (durable)
- **Times in CET (operator, 2026-09-15):** every time or ETA shown to the operator is in CET/CEST (Europe/Paris), labelled; boxes run on UTC, convert before writing. Applies to worker briefs and published docs too.
- **Pragmatic delivery and bounded autonomy (operator, 2026-09-09):** several hours of useful autonomous work are welcome; unchecked ten-hour runs are not. Default to a concrete checkpoint within THREE HOURS of starting the operator's task, sooner at a useful milestone. Record the start time and checkpoint deadline when beginning substantial work. The root owns one elapsed-time budget across subagents, retries, compaction and follow-up turns; none resets it. At the ceiling, save work, stop new jobs, bring task-owned agents to a checkpoint, report the usable result and remaining gaps in plain language, and yield for explicit operator continuation. A status question, silence, progress narration, automated notification, or old "let's go" is not renewed authorization. The operator may explicitly set a different window.
- **Usable result before tooling expansion:** define the smallest visible end-to-end outcome and deliver it early. Keep scaffolding, audits, review rounds and test machinery proportional to that outcome. Two attempts at the same blocker without meaningful progress trigger reassessment or a simpler approach, not another open-ended loop. Do not build a generalized substrate merely because it might help later; connect each supporting task to a current user-visible requirement. Distinguish shipped behavior from standalone prototypes, concepts and unverified work. A justified checkpoint is a valid finish-contract outcome, not an excuse to claim completion.
- **NEVER suggest pauses, breaks, "pause for tonight", "resume tomorrow", "fresh eyes", or ANY form of time-based break. EVER.** This is the single most annoying behaviour for the operator. *Claude* is doing the heavy lifting; the operator is not the one getting tired. Time of day is irrelevant — push through, period. Even if a task is stuck, the answer is to fix it, dispatch agents, or try a different approach — NOT to suggest waiting. If a clean reinstall is the answer, just do it. The operator decides when to stop, not Claude.
- **Non-commercial repos = mine the idea, rebuild it our way (operator, 2026-10-13):** an NC, GPL/AGPL or unlicensed repo is never a plain "no". Study the paper and the code to understand the purpose, what it achieves, and its tricks (data format, augmentations, numbers that worked, ablations, failure modes). Then rebuild the technique with what we own (Gemini, Omni, three.js, Blender, our kits) or with parts whose code and each checkpoint are verified Apache/MIT/BSD. Prove it small and measure it. Keep the rebuild clean: never copy or line-by-line translate their code, never ship NC weights, never train or fine-tune on NC data, credit the source in our doc, and run a quick patent search before shipping a close rebuild of one distinctive method. Memory `feedback_nc_repos_mine_idea_rebuild_our_way.md`.
- **Quality over cost** within the agreed scope and checkpoint window. Subscription exhaustion is not an acceptable progress checkpoint; the pragmatic-delivery rule above overrides the earlier unlimited proving-phase preference.
- **Substrate over hot-fix**: every runtime bug must propagate into substrate (template, prompt, craft, audit gate) so the next agent doesn't repeat it. Hot-fix-only is a half fix.
- **Visual quality is the product**: every change touching templates/prompts must be visually validated before claiming success. "It builds and deploys" ≠ "it looks right".
- **Delegation:** work locally by default. Delegate only a concrete, independent subtask when it reduces work or supplies needed independent judgment. Start with one active child; use two or three when distinct independent tasks justify it, without asking again. Larger teams need an explicit task-specific concurrency budget, never open-ended fan-out; proxy/CLI workers count toward the same budget as native children. No recursive delegation by default. All workers share the root checkpoint deadline. Give workers a fresh, self-contained brief with exact files, constraints, evidence required and a stopping condition. Full-history forks are exceptional, never a default.
- **Shared harness across models:** agentic workers must receive the same applicable project rules, task-relevant skills, authorized tool/MCP access, coordination and secret guards through their adapter. Load skills selectively, not all at once. Preserve isolation and task-specific permissions; equal harness support does not grant broader authority. Missing wiring is an adapter gap to report or fix, not a reason to declare a model incapable. Verify the chosen lane rather than assuming every helper inherits the full setup.
- **Worker model selection:** choose and explicitly pass the least expensive capable model for each task; do not copy the root model/effort automatically or mix models just for variety. **Every Gemini call is Gemini 4 Argon (operator, 15 Oct 2026; never 3.8 Flash or 2.5):** agentic work through the Antigravity CLI (`agy4`), single-shot calls through the gateway with a thinking level (Gemini 4 refuses budgets; its thinking counts against max_tokens). Gemini 4 (`forge:build-gemini-4`, `-low`, `-high`) is eligible for bounded coding, investigation and review. Local builders use `forge-agent run --harness gemini --model forge:build-gemini-4 --repo <repo> --purpose <task> --task <brief>` with a bounded `--timeout`; since 14 Oct 2026 this runs Google's Antigravity CLI (`agy4`, `forge-hub/agent/AGY4.md`) with the shared rules, skills, Forge MCP and our guards bridged as agy hooks, every call to Vertex project forge-dev-492809 (Google grant); `FORGE_GEMINI_HARNESS=claude-code` or `--jail` = the old Claude Code lane. Proven locally with actual Gemini responses, MCP skill/coord calls, file edits, tests and a blocked secret-guard probe. `--harness gemini-proxy` remains the single-shot no-tools helper for tasks that need no tools. The local Gemini builder currently rejects optional `--jail`; never imply that it ran in a container sandbox. Use `gpt-5.6-luna` for narrow mechanical work, `gpt-5.6-terra` for exploration and bounded implementation, `gpt-6.1-sol` (Sol) for demanding implementation/debugging/review, and `gpt-6-astra` for unusually difficult architecture or reasoning. **Sol = `gpt-6.1-sol` (operator, 2026-09-30):** every Sol request runs GPT-6.1 Sol (Codex CLI >= 0.159.2; 0.156 gets a 400). `sol`/`solx` call it, and the Engine swaps `gpt-6-sol` and `gpt-5.6-sol` for it at launch (`cli/sonnet_retire.py` LATEST_VERSION, also inside `run_tracked_codex_cli`). `gpt-6-luna` (Codex CLI >= 0.156.0) is the GPT-6 option for the Luna tier; not benchmarked yet, so `gpt-5.6-luna` stays the Luna default until a measured run shows it is worth its cost. Claude CLI workers use `--model sonnet`, which is **Sonnet 5.5 only** on this box (alias pinned in `~/.claude/settings.json` since 2026-09-28; never Sonnet 5; the Engine still remaps Sonnet to Opus 5.5). **Haiku 5.5 (2026-10-08):** `--model haiku` = `claude-haiku-5-5` everywhere (alias pinned in `~/.claude/settings.json`; the Engine seam upgrades `haiku`/`claude-haiku-4-5` at launch): $0.10 in / $0.50 out per MTok, 1M context, default effort medium. Use it for classification, extraction, routing, yes/no gates, judges and cheap subagents at effort low or medium; `haikux "prompt"` one-shot, `review --by haiku` for the cheapest second look (same family, not independent), panel seat `haiku-local`. Always pass `--effort`: low for mechanical edits, medium by default, high only for creative or hard work (and for benchmarks, the same effort as the run it is compared with). Native Codex defaults are Terra/medium; explicitly select low effort for straightforward tasks and high only where the reasoning warrants it. Prefer a different family for independent judgment when useful. Escalate after evidence of a capability limit instead of repeated cheap retries; name unavailable models and use a supported alternative. Codex mixed-model spawns use `fork_turns="none"` with a self-contained brief; full-history forks inherit the parent's model and effort.
- **Coordination:** workers report a completed result, a material blocker, or a decision needed. Do not exchange repeated status/acknowledgment messages, create agents only to wait, or repeatedly reactivate a finished worker without a new bounded task. Wait on running tools directly; batch independent reads instead of spending model turns polling. The root keeps useful local work and integrates the result.
- **Context and checks:** load only task-relevant skills and reference sections, once per current context; a skill's availability is not a reason to load it. Use scoped searches and bounded output; keep full logs in artifacts. Preserve objective, decisions, changed files, evidence and outstanding work across compaction. Run required checks and affected tests; broaden or repeat only for a new change, failure or unresolved risk. Stop when the requested outcome is evidenced.

## Talking to other models in the CLI (2026-09-17)

Three model CLIs, same shape, all with full tool access and no approval prompts
(safety = the PreToolUse secret + coordination guards, not a sandbox):

| command | model | one-shot | extra flags |
| --- | --- | --- | --- |
| `astra` | Codex GPT-6 Astra | `astrax` | Codex flags |
| `sol` | Codex GPT-6.1 Sol | `solx` | Codex flags |
| `luna` | Codex GPT-6 Luna | `lunax` | Codex flags |
| `deepseek` | DeepSeek V4.1 Flash | `deepseekx` | `--effort low|high|max` |
| `gemini` | Gemini 4 Argon in Google's Antigravity CLI (default since 14 Oct 2026; 3.8 Flash requests are upgraded; `gemini-cc` = old Claude Code lane) | `geminix` | `--model forge:build-gemini-4{,-low,-high}` |
| `agy4` | the launcher behind `gemini`/`gemini4`: Antigravity CLI + relay -> alias `forge-agy-gemini-4` (Google grant) | `agy4 -p` | `--model`, `--effort low|medium|high`, `--worker`; doc `forge-hub/agent/AGY4.md` |
| (none) | Claude Haiku 5.5 (`claude-haiku-5-5`, via `claude-lean`) | `haikux` | Claude Code flags (`--effort low`, `--tools ""`) |

All four are executables in `~/bin`, not shell functions: `~/.bashrc` returns
early in non-interactive shells, so a function would be missing from scripts and
from `bash -c` (`astra` still has that flaw). `--ask-permissions` restores the
approval prompts. `deepseek` and `gemini` are Claude Code driving another
provider's endpoint, so every Claude Code flag passes through (`--continue`,
`--resume <id>`, `-p`).
Each has a persistent private profile (`~/.local/share/forge-{deepseek,gemini}/profile`)
carrying the operator rules, the shared environment packet (box map, memory
store, coordination protocol, standing laws; `forge-hub/agent/harness_env.py`),
a copy of `~/.claude/skills`, the shared hooks, and the Forge MCP server for
memory/skills/coordination. Docs: `forge-hub/agent/DEEPSEEK.md`, `GEMINI.md`.

Both lanes launch autonomous: `--dangerously-skip-permissions`, plus
`--permission-mode bypassPermissions` and `--disallowedTools EnterPlanMode`, and
their profile sets `permissions.defaultMode: bypassPermissions`. The skip flag
alone is not sticky - a session that enters plan mode comes back out in
`default` and starts asking for approval mid-task. `--ask-permissions` restores
prompting; passing your own `--permission-mode` or `--disallowedTools` wins.

Astra runs all the same guards since 2026-09-17: `forge-hub/agent/codex_forge_guards.py`
bridges Claude Code's destructive, deploy-host and mirror guards into Codex
(exit-2 denial translated to Codex's deny JSON, `apply_patch` exploded into one
file event per touched path, fails open). The guard scripts are not forked; the
Claude copies in `~/.claude/hooks/` stay the single implementation.
**No waiting parent (2026-09-20)**: `forge-hub/agent/codex_wait_guard.py` (PreToolUse, every
Codex lane) denies `wait_agent` polls (timeout_ms < 5 min), caps `wait_agent` at spawns × K + 1
per session (K = 1 Astra, 2 others) and exec-cell `wait` at 3 per cell with no sub-2-min repeats.
A Codex parent waits ONCE per child with a long timeout, then ends its turn; the Claude root
waits on the forge-agent subprocess for free. Kill switch `FORGE_WAIT_GUARD=0`, budget
`FORGE_WAIT_GUARD_K`. Denials log to `/tmp/codex_wait_guard.log`. Claude-lane twin
`~/.claude/hooks/wait_guard.py` (settings.json PreToolUse `Bash|TaskOutput|Read`, copied into the
DeepSeek and Gemini profiles at every launch): a bare `sleep N; <check>` turn outside a loop is
allowed twice per session then denied; `TaskOutput` / reads of a `tasks/<id>.output` file twice per
task then denied. Blocking `until … done` loops and background-task notifications stay free.

**Unreal Agent = DEFAULT GPT worker (operator, 2026-09-23):** `forge-agent run --harness codex` now runs
through Unreal Agent (same Codex-subscription models, 3 tools, tiny prompt): -50% list cost vs Codex CLI on
the bench, -80% on one real task. Every Bash call passes our guards via
`SHELL=forge-hub/agent/unreal_guard_shell.py`. No native MCP: since 2026-10-11 its workers reach the Forge
MCP server from Bash with `~/bin/forge-mcp` (= `forge-hub/agent/forge_mcp.sh`, Apify mcpc 0.7.0 in
`~/.local/lib/mcpc`; `forge-mcp --json tools-call memory_search query:="..."`), a private session per worker
in `.harness/mcpc` (closed when the run ends) that makes coord calls as the worker. No resume yet. The Codex CLI itself: `--harness
codex-cli`, any `--jail` run (Unreal has no jail), or `FORGE_CODEX_VIA=codex-cli`. Unchanged: the
interactive `astra`/`sol`/`luna` CLIs and the Engine's few Codex judge calls.
Memory `reference_unreal_agent_harness_assessment_2026_09_22.md`.

**Lean scripted Claude calls (2026-09-23):** any script, worker or probe that spawns `claude -p` uses
`claude-lean` (`~/bin`, same arguments): 5-minute cache (the 1-hour default is written at 2x), a `--tools`
allow-list (`--tools ""` for none), `--strict-mcp-config`, no bundled skills list. Engine code goes through
`run_tracked_claude_cli` (`cli/lean_launch.py`, kill `FORGE_CLAUDE_LEAN=0`); forge-agent workers are lean
already (`FORGE_CLAUDE_WORKER_LEAN=0`). Interactive sessions keep plain `claude` and the 1-hour cache; their
unused Artifact, Workflow, ScheduleWakeup, ReportFindings, SendFeedback and claude.ai connectors are off in
`~/.claude/settings.json`. Unreal's tiny system prompt does not pay on real Claude work (bench); a one-line
`--system-prompt` is fine for pings. Memory `reference_claude_code_lean_mode_bench_2026_09_23.md`.

**Advisor tool (2026-10-08):** `claude --advisor opus` (or setting `advisorModel`, or `/advisor opus|off`) lets a cheaper
main model consult a stronger one at decision points (plan, repeated failure, before "done"). Proven on this box: CLI
2.1.284, subscription, `-p --model sonnet --advisor opus` = Sonnet 5.5 + Opus 5.5. The advisor must rank at or above the
main model (an Opus root can only take Opus/Fable); Haiku 5.5 on either side needs CLI >= 2.1.293. The model picks when to
call it (ask in the prompt; no cap); every call re-reads the full transcript uncached, so cost grows with context. Anthropic
API only: not through the DeepSeek/Gemini gateway lanes; off when feature-flag fetching is off (`DISABLE_TELEMETRY`); kill
`CLAUDE_CODE_DISABLE_ADVISOR_TOOL=1`. Not wired into the Engine or forge-agent yet (bench awaits operator). There is no
`--subagents` flag. Memory `reference_claude_code_advisor_tool_2026_10_08.md`.

**Max plan API credits (2026-10-08):** each Max 20x plan gives $200/month (Max 5x $100) of Claude Platform credit, claimed on
claude.ai (Settings > Billing > API credits > Link organization) into ONE Console org, permanent choice. Covers the API,
Batches, Managed Agents, Agent SDK and `claude -p` run with that org's API key; NOT Claude Code signed in with the plan,
not extra usage. No rollover, spent before purchased credits, requests stop when out unless the org has bought credits.
Not claimed yet. Memory `reference_max_plan_monthly_api_credits_2026_10_08.md`.

Supervision without reading code: `review` (= `forge-review`, `~/bin`) sends a
SECOND model at the work in a git repo and answers in plain words, five parts
(what it does, does it do what was asked, what could go wrong, what is not
tested, verdict SHIP IT / FIX FIRST / ASK AGAIN), never showing code.
`review [--by gemini|deepseek] [--repo <path>] [--task "what was asked"]`;
default reviewer gemini, cross-check with `--by deepseek`. Reviews uncommitted
work, else the last commit, else the root commit. Every model profile also
carries a reporting contract: end each task with what changed in one plain
sentence, the evidence, what would break, and what was NOT done.

Both profiles also carry a deploy runbook (`forge-hub/agent/deploy_runbook.md`,
injected by `harness_env.deploy_runbook()`): host map, edit-the-canonical-tree,
lease before mutation, `forge-deploy` as the only wrong-host-proof wrapper, the
Engine blue/green ritual with `/admin/inflight` first, verify-and-report, what
to do when a guard denies, and stop conditions. Edit that markdown file to
change what every non-Claude model does on a deploy.

## DeepSeek local harness (2026-09-11)

- Interactive CLI: `deepseek` (= `forge-deepseek`, DeepSeek V4.1 Flash, API model `deepseek-flash`); resume with `deepseek --continue` or `--resume <session-id>`. `--effort low|high|max` selects reasoning effort. One-shot: `deepseekx "prompt"`.
- Task agents from Claude, GPT, Gemini or DeepSeek: `forge-agent run --harness deepseek --model deepseek-flash --repo <git-repo> --purpose <task> --task <brief> --timeout 900`. Same isolated worktrees, shared Forge MCP memory/skills/coord, hooks and finish rules. DeepSeek orchestrators can call the other `forge-agent` harnesses; workers do not recursively delegate.
- Thin adapter: `forge-hub/agent/deepseek_worker.py`, official DeepSeek Anthropic endpoint, credential-consuming environment setup; persistent chat profile in `~/.local/share/forge-deepseek/profile`. No new agent loop. Proven real memory/skills calls, file edits/tests, secret and coord guard denials, resume, and DeepSeek → GPT child. No Docker jail support on this local lane.
- Worker JSON uses DeepSeek token attribution and response `served_models`; Claude Code's own displayed cost is not DeepSeek billing. Use provider billing. Details: `forge-hub/agent/DEEPSEEK.md`.

## MÖBELKRIG game repo: one reference main (operator, 2026-09-27)

Repo `~/forge-build/ikea-fps-20260925/game` (the flat-pack store FPS). `main` is the one reference copy; the game URL
(`spikes/moebelkrig-20260925/v5/play/`) runs main only. Everything goes through `moeb` (`~/bin/moeb`, rules in the
repo's CONTRIBUTING.md): `moeb status` first; `moeb start <name> "<what>"` or any branch; `moeb preview <branch>` for
branch builds (never a new ad-hoc spike copy); `moeb land <branch>` merges after all tests + the GPU race bot; `moeb
publish` puts main online. A git hook refuses any other move of main; `publish-preview.sh` refuses the game URL
outside `moeb publish`. Player-visible changes: preview, operator OK, then land. Versions page:
`spikes/moebelkrig-20260925/versions/`.

## Personal substrate skills

Loaded from `/home/claude-agent/.claude/skills/`. Select by the task-specific trigger; do not load this entire list. The short entrypoint routes to details only when needed:

- **ai-film-craft** — applies when building/reviewing video-generation pipelines, prompts, storyboard lanes, or anything that spends on video models
- **forge-design-language** — applies when building any UI, generating CSS, or reviewing frontend
- **cl4r1t4s-reasoning** — diagnose AI harness behavior or audit consequential assumptions
- **impeccable-craft** — polish frontend design or user-facing copy
- **forge-thought-patterns** — plan complex Forge work or diagnose recurring cross-component failures
- **omni-beat-vfx** — applies to any VFX beat on real talking-head footage (Omni gens + the deterministic lane, gates, clean-edge paste, colour + sound laws)
- **gfx-beat-deterministic** — applies to drawn/graphic beats (badges, stickers, panels, logos, rocket scenes, orbs) and to the Director's `gfx` graphics-beat lane
- **sim-town-games** — applies when building or fixing a tycoon, business-sim or town-sim game on the Forge Game Engine (new game = pack + town seed; laws, crowd, shopfronts, release copy)
- **code-video** - applies when a video shot needs exact motion, timing, physics or a precise camera move, or a brand logo on a product (three.js preview, smooth camera rig, Omni 1.1 edit; Veo first+last frames cannot do choreography)

Each skill is a self-contained SKILL.md with frontmatter declaring its triggers.

## Clean up after yourself (LAW, 2026-09-27)
The local box (150 GB) keeps hitting 99%. A full disk kills every session's tool output. Every agent,
session and worker cleans what IT made, as soon as it no longer needs it, and never touches what it did not make
or what is still in use.
- **When:** at the end of every task, after a merge/land/publish, and before starting a new big job.
- **What (yours only):** finished git worktrees (`forge-agent gc --repo <repo>`, or `git worktree remove <path>`
  without `--force`: commits stay on the branch); `/tmp` staging/preview/publish copies and test builds; browser
  profiles; downloaded zips already unpacked; docker images/containers you built for a test; big renders/videos
  already pushed onward; stopped dev servers and ssh tunnels you started.
- **Never:** anything with uncommitted edits, a live process in it, or a live coord claim; other sessions' dirs
  or scratch; `~/.claude` transcripts, `~/.codex/sessions`, `~/.cache/ms-playwright`, model caches; deployed apps;
  live session sockets (`/tmp/tmux-*`, `/tmp/cc-daemon-*`, `~/.hq/`): deleting one stranded 21 tmux sessions until
  10 Oct 2026 (now in `~/.hq/legacy/`, attach with `tmuxl`).
  If unsure whose it is, leave it and `coord note` it.
- **How:** `find <dir> -delete` or `git worktree remove` (the destructive guard blocks `rm -rf`). Check
  `df -h /` when you finish; under 15 GB free, say so in your report.
- **Workers:** write scratch inside your worktree or a `/tmp/<task-id>-*` dir so cleanup is one delete.
- Memory `feedback_clean_up_after_yourself.md`.

## Secrets never enter a transcript (LAW, 2026-09-07)
A PreToolUse hook (`~/.claude/hooks/secret_guard.py`, matcher Bash|Read|Grep, tests in `hooks/tests/test_secret_guard.py`) DENIES reading credential files (`.credentials`, `~/.forge-secrets/`, `.forge-smoke-secret`, `auth.json`, `.env*`, `*.key`, `*.pem`, ssh private keys, `.netrc`, `.pgpass`, `*secrets*.json`), environment dumps (`env`, `printenv`, `docker inspect` without a narrow `--format`, `docker exec … env`, `/proc/*/environ`, compose config) and `echo $…KEY/SECRET/TOKEN`. Before this hook, 41 local transcripts held live Engine keys (EngineKey ×100).
- Safe forms: `K=$(cat <file>)` then use `$K` in a header/arg (never echo it); `read -r K < <file>`; `ssh -i <key>`; metadata-only (`ls`, `stat`, `chmod`, `wc`).
- Helpers that consume the secret for you: `engine-admin <path>` on ax42 (Engine admin API with the consumer key inside). Add a helper rather than reading a file.
- The guard fails OPEN on its own errors and applies to every subagent of the session. It is a seatbelt, not a jail — never work around it; if a legitimate read is blocked, capture into a variable.

## Multi-Claude coordination (durable)

Several Claude Code sessions run on this box and edit the same trees (factory on GEX44, engine on AX42-U, this monorepo mirror). A filesystem bus at `~/.claude/coord/` prevents collisions. The `coord` CLI (`~/.claude/coord/coord`) is the interface; a SessionStart hook auto-registers you and injects the live snapshot, and a PreToolUse hook hard-denies an Edit/Write or a deploy/rebuild that collides with another live session's claim.

**Protocol — before you WRITE / REBUILD / RESTART a shared resource:**
1. `coord check <host:path>` — is anyone else on it? (exit 3 = conflict)
2. `coord claim <host:path> [--note "..."]` — take it (exclusive; auto-expires, TTL 30m, refreshed by heartbeat).
3. Do the work, then `coord release <host:path>` (or `--all`).
4. `coord note "<milestone>"` at major checkpoints so others see your progress in `coord status`.

**Rules:**
- Reads need NO claim — you only claim what you will mutate.
- Resources are EXACT files (`gex44:apps/x/f.py`) or EXACT dir prefixes (`gex44:apps/x/`). No globs. Hosts: `gex44`, `ax42`, `local`, `prod`, `service` (e.g. `service:forge-corp-factory`).
- The guard fails OPEN — if `coord` errors it never blocks your tools. It only bites on a real, live, conflicting claim.
- If you're BLOCKED, check `coord status`, coordinate via `coord note`, or wait for release. Override only after confirming with the other session.
- Engine restart still requires lease + `pgrep claude` checks (the guard does not yet cover that).

**Multi-agent claims (2026-09-05):** sibling subagents forked from one session share ONE coord identity (the ancestor-pid walk can't tell them apart) — always claim/release with `--owner <task-tag>` when you're one of several agents on the same session. Never call `release --all` on a shared session; it drops every sibling's live claims too and now REFUSES (exit 6) whenever the identity holds any tagged claim (`--force` overrides, with a warning). Forge-agent workers (`forge_agent.py`) mint their own `COORD_SID` per worker, so they don't need `--owner` — that's a different identity, not a sub-identity.

## For non-Claude agents (Codex, Gemini, ...)

This file is a generated rendering of `CLAUDE.md` for harnesses that read
`AGENTS.md` natively instead. It carries the same rules — they apply to you
too. On top of them:

- **Use the `forge` MCP server before acting.** It is mounted in your CLI's
  config (Codex: `[mcp_servers.forge]` in `~/.codex/config.toml`). Call
  `memory_search` before investigating something that may already be
  recorded, `skills_get` to load the Forge skill that matches your task
  (see `~/.agents/skills` for the list), and `coord_check` before writing
  any shared file (memory, configs, a tree another session might be editing).
- **`edit_then_run` (opt-in).** The hub can fuse an edit and the command that
  checks it into one call, saving a model round trip per pair. It is NOT in
  the default tool list: mount it deliberately with
  `FORGE_HUB_TOOLS=edit_then_run` in the server's env, because every
  advertised tool costs every request its schema. Benched 2026-09-22 it cut
  turns (30 -> 26) and RAISED cost (~$0.0105 -> ~$0.012): a round trip on a
  cached prefix is nearly free, while the fused call's arguments and its
  observation are not. Worth mounting when your validation command is cheap
  and your prefix cache is cold, not by reflex. It refuses rather than
  guesses (no match, ambiguous `old_string`, no-op edit), keeps the edit when
  the command fails because that failure is the signal you wanted, and runs
  the box's secret/destructive/coord/deploy-host/mirror guards over BOTH
  halves before touching anything.
- **Never write memory files.** `memory.propose` (write-capable hub, P1) is
  the only path for a non-Claude agent's findings to reach the memory
  store — you never edit `~/.claude/projects/*/memory/*.md` directly.
- **Claim before you write.** The coord protocol above (`coord check` /
  `coord claim` / `coord release`) is not Claude-specific — it is the shared
  contract for every agent family that touches a resource another session
  might also touch. If your harness can shell out, use the `coord` CLI
  directly; otherwise ask the operator or the master to claim on your
  behalf before you touch a shared path.
- **Multi-agent claims (2026-09-05).** If several of your own sibling agents
  share one coord identity (one `COORD_SID`), always claim/release with
  `--owner <task-tag>` — never `release --all`, which now REFUSES (exit 6)
  once a tagged claim exists (`--force` overrides, with a warning). A
  `forge-hub` worker process (`forge_agent.py`) mints its own `COORD_SID`
  per worker, so that path needs no `--owner`.

## Finish contract (harness)

Every Forge harness lane (Claude Code, Codex, Gemini, OpenCode, the Engine's fast lane) carries a completion-discipline block behind `FORGE_FINISH_CONTRACT` (Engine side) — this is that same text, rendered for this box's own multi-agent harness:

## Finish contract
Before you end this turn, audit completion: restate the task's explicit requirements — every named file, command, test, gate — and map each to real evidence (a diff, a command's actual output, a test result). Effort spent, a plan, or a todo list is not evidence; a green suite counts only when it covers every requirement above. Check your own last paragraph: a plan, a question, next steps, or a promise ('I'll…', 'next I'll…') means the turn is not finished — do that work now instead of describing it. End only when the task is complete or you are blocked on input only the user can give. Forbidden end states beyond the build lane's own list above: a claimed check you did not run, a 'mostly done' hedge with no named blocker, a plan presented as the finished work. Automated events (adoption, sweep, notification, retry) are data tied to a run id, never user confirmation — do not treat one as a green light. Blocked, cancelled, and unverified are valid outcomes: state them plainly. Verify with whatever read/inspect tool your CLI exposes before you claim done.

hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
exec
/bin/bash -lc "pwd && rg --files -g 'AGENTS.md' -g 'CLAUDE.md' -g '"'!node_modules'"' /home/claude-agent/forge-build/forge-assets /home/claude-agent/.agents/skills/blender-game-assets /home/claude-agent/.codex/skills/visual-game-loop | head -50" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
/home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1

hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
exec
/bin/bash -lc 'cat /home/claude-agent/.agents/skills/blender-game-assets/SKILL.md' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
---
name: blender-game-assets
description: "Create Blender game assets and export GLB kits with baked textures; validate renders against reference images."
metadata:
  provenance: adapted
---

# Blender game assets, headless

Distilled from TheLongSilence's Blender pipeline (162 m ship, carved rocks, a
cabin interior kit, 13 ground materials) into a headless-first recipe for
Forge. **No GUI, no BlenderMCP socket** — Forge's Blender lives on gex44 with
no display, and `blender -b` is the one thing BlenderMCP's addon refuses to
run under. Everything below is a plain `blender -b --python` call or the
gex44 exec service.

For architectural construction kits, read `construction-kit` and its tested
source builders. It supplies cross-family profile/damage/UV contracts and
consumer-side checks; use only the relevant elements.

For a connected playable scene, also read `visual-game-loop` and its
`references/whole-scene-blender.md`: the user-approved harbour recipe combines
scene/object references, photographic materials and coherent Blender construction
with gameplay verification. Reuse good hero assets; author the surrounding place
as a whole rather than assuming a larger modular catalog will fix assembly.

## Read only what the task needs

| When | Read |
| --- | --- |
| A dense model must become a light one that keeps its look (normal + AO transfer) | [high-to-low baking](reference/high-to-low-baking.md) |
| Preparing UVs or a cage, or a bake shows seams, black faces, wrong highlights | [baking and diagnostics](reference/baking-and-diagnostics.md) |
| Choosing texture or mesh formats, or the asset is slow to load or heavy in GPU memory (KTX2, WebP, meshopt, Draco) | [asset delivery](reference/asset-delivery.md) |
| Before any long bake or scripted export pipeline | [preflight and recovery](reference/preflight-and-recovery.md) |
| The asset looks right in Blender and wrong in the game, or the cause could be either | [runtime parity and diagnostics](reference/runtime-parity-and-diagnostics.md) |
| The asset will be judged by eye (hero prop, character, building, environment) | [author and critic loop](reference/critic-loop.md) |
| Terrain, cliffs or rocks should look weathered (branching gullies and ridges, no simulation) | [terrain erosion](reference/terrain-erosion.md) |

These seven are loaded on demand, not by default. Five are ported from vercel-labs/vgpu (see Attribution); terrain erosion uses Rune Skovbo Johansen's filter (MPL 2.0, `scripts/erosion/`).

### Choose how to carry each detail before any bake

| Detail | Carry it as |
| --- | --- |
| Silhouette, openings, broad edges, tuft dimples, piping, moving parts | Real low-poly geometry |
| Fine bevel curvature and shallow relief the triangle budget cannot afford | Tangent-space normals baked from the dense source |
| Permanent cavities and contacts inside a rigid assembly | Baked AO |
| Fabric weave, grain, micro-texture | The existing tiled map at its own scale, never re-baked into a unique atlas |
| Contacts that change, directional shadows | Runtime lighting |

**Pick the cheapest carrier that passes the look check. Being under a texture budget is not a reason to
spend it.** A unique normal atlas is the last resort, for detail the triangle budget cannot hold: a
1024 px RGBA8 map with mips is 5.6 MB of GPU memory per asset, and it replaces a tiled map that every
copy of the material could have shared. If you try a bake and geometry plus the source's tiled maps
looks as good, ship the geometry and say so in the report.

Measured (2 Oct 2026, STRANDMON armchair, 233k to 12k triangles, two Astra runs, same brief): dimples kept
as geometry with the two original 256 px tiled maps = 0.46 MB download, 0.7 MB GPU textures. Same detail
baked into a unique 1152 px normal map = 1.19 MB download, 7.4 MB GPU textures, slightly closer from across
the room, slightly weaker up close, and a blind judge preferred the geometry version.

## Which representation: decide before modelling

For furniture reconstructed from photographs, datasheets or assembly instructions,
read [Furniture reconstruction checks](reference/furniture-reconstruction.md)
before generating geometry. It covers panel-relative coat-hook placement,
interior compartment counts and optional door/drawer articulation.

| Need | Representation | Why |
| --- | --- | --- |
| Hero or enemy character with a walk and attacks | imported rigged mesh (this skill, or the CC0 library: Quaternius, KayKit, Mixamo motions) | skinning, retargetable clips; procedural rigs read as mannequins |
| Weapon, prop, creature variant where silhouette, sockets, collision or code-driven variants matter | procedural three.js geometry or a small GLB kit part | controllable, cheap to vary per instance |
| Concept, icon, backdrop, card art | a generated 2D image used directly | never rebuilt as geometry |
| A reference image whose visible FORM must become a code model | `img2threejs` with its gates; say the result is a reconstruction, not extracted geometry | likeness is judged, not measured |

Pick once at the blueprint or stack-selection stage and record it with provenance (source, licence,
metres per unit, forward axis). Design after MengTo/Skills build-hybrid-game-assets (MIT).

## 1. The recipe

The concept image is the spec, not decoration. For every asset in a kit:

1. **Model every piece in Blender from the concept image** using loft/recess/
   greeble (§3). Grey-clay render it before touching a texture (§4, §10) —
   box-stacking hides under any lighting rig except flat grey + one hard key.
2. **Use a fitting registered photographic texture set or an image model** for
   photographic surfaces (ground, foliage, cloth). Record origin, license and
   physical scale; matching normal/roughness maps must remain aligned. Use an
   existing suitable licensed scan before generating a replacement; use Cycles nodes only for what
   genuinely varies by geometry (edge wear, per-plate tone), and flatten
   before export (§6).
3. **Screenshot-vs-concept loop.** Render next to the concept, same angle if
   possible, compare. Judge by measured numbers where you can (§10: tone
   percentiles, AO floor, draw calls), by eye where you can't (silhouette,
   chamfer read, material believability). Iterate until it reads as the
   concept, not until it "looks 3D".
4. **Export once clay AND texture both hold up.** A model that's flat-correct
   in clay but goes muddy after baking has a material bug, not a modelling
   bug — don't re-model to fix a bad bake.

## 2. Headless setup on gex44

Blender 5.2.0 LTS, x64, RTX 4000 Ada, at
`/root/blender-spike/blender-5.2.0-linux-x64/blender`.

**A. Direct subprocess** (matches the source game's `build_*.py` pattern):
```python
BLENDER = "/root/blender-spike/blender-5.2.0-linux-x64/blender"
cmd = [BLENDER, "--background", "--factory-startup", "--python-exit-code", "1", "--python", __file__,
       "--", "BUILD"] + extra_args
# script: `if 'BUILD' in sys.argv: blender_main(...)` else `drive(...)`
```
Split into `drive()` (host: subprocess + result check) and `blender_main()`
(only imports `bpy`/`bmesh` — importing them outside `-b` crashes with no
display). **Without `--python-exit-code 1`, Blender can exit 0 after a Python error.**
Set that flag, check the exit code and logs, and verify fresh output files.
Mesh/export validation still matters: a successful process is not visual proof.

**B. gex44 exec service** (`/opt/astra-blender/blender_exec_server.py`,
loopback `:8793`, token-guarded): POST a python script, get back stdout plus
render paths, for interactive iteration without a subprocess per call. Same
headless constraint — the script is a `blender_main`-shaped body, no GUI code.

Outputs land in the app's `public/models/` (or the GameKit pack's asset dir)
as `.glb` + `.webp`. Draft render: 64 samples / 1280x720 ≈ 2 s on an M-series
GPU (source game, Apple Silicon) — **gex44/RTX 4000 Ada timing is
unmeasured; get one real number before quoting a render budget.**

## 3. Modelling: loft, recess, greeble

Three techniques, in order of impact.

**Loft cross-sections, never stack primitives.**
```python
def oct_ring(w, h, cx, cz):
    a, b = w * 0.5, h * 0.5
    return [( a, b-cz), ( a-cx,  b), (-(a-cx),  b), (-a,  b-cz),
            (-a, -(b-cz)), (-(a-cx), -b), ( a-cx, -b), ( a, -(b-cz))]

def loft(name, sections, mat):    # sections: (y, w, h, cx, cz, dz)
    bm = bmesh.new()
    rings = [[bm.verts.new((x, y, z+dz)) for (x, z) in oct_ring(w, h, cx, cz)]
             for (y, w, h, cx, cz, dz) in sections]
    for A, B in zip(rings, rings[1:]):
        for i in range(8):
            j = (i+1) % 8
            bm.faces.new((A[i], A[j], B[j], B[i]))
    bm.faces.new(list(reversed(rings[0]))); bm.faces.new(rings[-1])
```
Keep the profile **stepped, not tapered** — a parallel midbody, a shoulder, a
blunt end. Steps are what the eye measures scale against.

**Cut detail into the skin**, not glued on top:
```python
sel = [f for f in bm.faces if pick(f)]
bmesh.ops.inset_region(bm, faces=sel, thickness=1.2, depth=0.0,
                       use_even_offset=True, use_boundary=True)
for f in sel:
    bmesh.ops.translate(bm, verts=list(f.verts), vec=f.normal.normalized()*-0.7)
    f.material_index = i_recess
```

**Detail hierarchy, including restraint.** Primary masses, panel bays, fine
greebles at roughly **1/60 of the asset's longest dimension**. Zone them and
**leave clean plate** — greebling every face reads as noise; detail only
registers against something undetailed. Flat-shade hard surfaces.

**A Bevel modifier does nothing on face-soup geometry** — bmesh ops emit
every face with fresh vertices, no shared edges to bevel. Weld first, then
chamfer:
```python
def weld_bevel(ob, width=0.0025, segments=2, angle=math.radians(31), dist=2e-5):
    me = ob.data
    bm = bmesh.new(); bm.from_mesh(me)
    bmesh.ops.remove_doubles(bm, verts=bm.verts, dist=dist)   # joins coincident boxes
    bm.to_mesh(me); bm.free(); me.update()
    apply_bevel(ob, width=width, segments=segments, angle=angle)
```
A 90-degree edge returns no highlight from any light — the single largest
thing separating "modelled" from "a pile of boxes". `o.scale = size` then
Bevel makes pillows (Bevel is local-space) — `transform_apply(scale=True)`
before bevelling.

## 4. Kit-bake pipeline (interior_bake/ distilled)

For a repeated kit (a corridor, a room set, a prop family), stage the build
so nothing bakes twice and occlusion bakes into the placement it ships in:

1. **Tile geo** — hi-poly tile (plates, rivets, hatches) as a **3x3 array**
   so only the centre tile bakes and its edges see real neighbours (no
   cross-fade). Panel tile 2.0 m, deck tile 1.5 m in the source kit.
2. **Tile bake** — bake **height by ray-tracing an Emission shader whose
   colour is world-Z**, not a tangent-space NORMAL bake off a flat cage: a
   vertical panel-gap wall has no cross-section for a downward ray, so a
   NORMAL bake off a plane records nothing for it. Height + a prefilter gives
   both the seams and a slope a texel wide.
   ```python
   sc.render.bake.use_selected_to_active = True   # hi -> flat lo plane
   sc.render.bake.cage_extrusion = 0.05
   ```
3. **Compose** (numpy) — prefiltered normal from height (clamp depth *before*
   differentiating: an undamped 26 mm slot over two texels is a normal lying
   flat, rendering as a crawling black slit); crown/cavity masks drive wear
   and grime; procedural stencils (part numbers, hazard stripes) into albedo.
4. **Kit** — parametric part builders on a shared profile/loft/box library
   (`Part`-style primitives, per-edge bevel, a material "slot" tag).
5. **Props / assemble** — instantiate every master once, `weld_bevel` each
   with a **hand-tuned width per part class** (finer on small props — a
   2.5 mm round-over eats a 6 mm book board), lay the kit out at its in-game
   transforms *before* baking so occlusion matches what ships.
6. **UV + AO bake**:
   ```python
   def unwrap_and_pack(masters, res=2048):
       for ob in masters.values():   # per-object smart UV project, then:
           ...
       bpy.ops.uv.average_islands_scale()
       bpy.ops.uv.pack_islands(margin=0.006, rotate=True)

   def bake_kit_ao(masters, occ, res=2048, dist=1.5, samples=128):
       sc.cycles.samples = samples
       # AO node -> Emission -> Material Output, per material, bake EMIT
   ```
   **AO bakes along the surface normal — wind kit-hull skin facing INTO the
   room**, or it bakes unoccluded everywhere (open space). **Floor-lift the
   result** — occlusion is a modulation, not a shadow; anything reaching
   pure 0 paints a black line lighting can never recover
   (`a2 = 0.34 + 0.66*a**0.85`).
7. **Clay check** before any texture or bake is trusted (§10).

**Texel density**: panel shipped 2048 px / 2.0 m = **1024 px/m**; deck
1024 px / 1.5 m = **683 px/m**; the interior kit's UV/AO atlas ran at
**4096 px** (the bake function's own default is 2048 — override per project,
don't trust a library default). Pick texel density from viewing distance: a
corridor the player's shoulder passes within 40 cm of needs more than a
ceiling never seen close.

## 5. Rocks and foliage

**Rocks** (`build_rocks.py`): carve, don't deform a sphere — a deformed
icosphere is convex-ish every time (the "potatoes" problem). Instead: dense
icosphere → `bmesh.ops.bisect_plane(..., clear_outer=True)` several times for
fracture faces (family-dependent: slab/block/boulder/column/shard) → smaller
bisects near corners for chips → two octaves of `mathutils.noise.noise`
displacement along the normal → `REMESH` (voxel) to heal cuts into one
manifold → `DECIMATE` to a triangle budget → `shade_smooth_by_angle` so
fracture edges stay sharp → bake AO to a `BYTE_COLOR` vertex attribute
(spread instances apart *before* baking — stacked at the origin they occlude
each other into a mean of 0.2) → normalise so the longest axis is 1 and the
low point sits at 0. Ship **8-11 variants across 3 LODs** (full, ~500 tri,
~160 tri) in one GLB, `export_vertex_color='ACTIVE'`, no materials — AO rides
in `COLOR_0`, the shader supplies the surface.

**Foliage** (`pack_leaf.py`): pack an image-model leaf-cluster cutout (RGBA,
transparent bg) into a 512x512 lossless atlas. Normalise each RGB channel's
mean over opaque pixels to 0.5, so the image contributes *variation about the
palette* rather than its own green. Dilate outward into the transparent
margin — bilinear alpha filtering averages the last opaque texel with its
transparent neighbour, and a black neighbour puts a dark fringe on every
edge. Ten dilation passes covers a 512-texel margin at any mip seen.

## 6. Materials

**Procedural (Cycles-only, geometry-driven):** per-plate tonal variation +
pointiness edge wear, the two nodes that make paint look built:
```python
vor = nt.nodes.new("ShaderNodeTexVoronoi"); vor.inputs["Scale"].default_value = 0.16
# RGBToBW -> MapRange 0.9-1.1 -> Multiply into base colour: plate batches
# never quite match, and that mismatch is most of what reads as "welded".
geo = nt.nodes.new("ShaderNodeNewGeometry")
pr = nt.nodes.new("ShaderNodeMapRange")   # From 0.49-0.56, clamp, -> wear factor
nt.links.new(geo.outputs["Pointiness"], pr.inputs["Value"])
# mix toward bare metal + drive Metallic up: free on every convex corner,
# exactly where paint goes in life.
```
Also: bleach on sun-facing normals (`dot(Normal, sun_dir)`), soot along an
object-space axis. **These do NOT survive glTF export** — three.js never
sees the node graph. Bake to a texture before export, or export flat base
colours per material bucket and let the app's own shader apply bleach/soot
from world position (what the source game does).

**Image-model derived** (ground, cloth, rock faces): one generated albedo is
the only photographic input, everything else *derived* in numpy so it can't
disagree with it:
- `height_from_albedo` — 3 band-passed luminance scales (fine/mid/coarse),
  weighted toward the middle — "dark is deep" is the prior every
  albedo-to-normal tool uses and it holds for ground.
- `normal_from_height` — central difference of the height field.
- `ao_from_height` — horizon-based, 16 directions, cone-stepped march.
- `roughness_heuristic` — dust in cavities (rough), exposed faces polish
  (less rough), clamped to an art-direction matte floor.
- **Seam fix in the gradient domain**, not by blending pixel values: take the
  gradient, force it periodic across the wrap by killing the seam's jump
  over a margin of a few px (weight ramps 0→1 away from the seam), then
  FFT-Poisson-integrate back. Mismatch lands in the lowest-frequency mode
  (an invisible ramp) instead of a visible strip at the border — a wide
  margin instead draws bright bars through the derived occlusion.

An image model asked to paint colour onto a rendered height map **redraws
the geometry** (measured: same style, every stone somewhere else). Asked to
*colourise* a flat, shading-free render of the SAME image, it keeps every
stone in place — colourise, don't paint-over, when height must register to
albedo.

## 7. Lighting and camera

**Void/hero lighting**: one hard key (`SUN`, angle ≈ 0.9°), a large weak
fill tinted toward the key's complement, a cold rim so nothing dissolves
into the background. Shadows never fully black. **Camera on the key side** —
a hero angle from the shadow side is carried by fill and reads washed out.

**Clay/QA lighting** (three `SUN`s: key, rim, bounce from below) — the
bounce matters because half of any interior's surfaces face down (an
overhead console, a coaming's underside) and key+rim alone renders them as
unreadable black.

**Camera from the bounding box, never by hand** — hand-placed cameras end up
inside geometry, costing **80x render time** (near-field bounces: 166 s vs
2 s measured):
```python
pts = [o.matrix_world @ Vector(c) for o in meshes for c in o.bound_box]
lo = Vector((min(p[i] for p in pts) for i in range(3)))
hi = Vector((max(p[i] for p in pts) for i in range(3)))
ctr = (lo + hi) / 2; rad = max((p - ctr).length for p in pts)
cam.location = ctr + direction * (rad / math.tan(cam.data.angle / 2) * 1.05)
cam.rotation_euler = (ctr - cam.location).to_track_quat("-Z", "Y").to_euler()
```
`to_track_quat` assumes Z-up world; if the asset is authored Y-up inside
Blender's Z-up slots, build the look-at basis by hand (cross products off
the target vector and the game's own up axis) or every render is on its side.

**Voronoi stars, never thresholded noise** — noise can't separate density
from size (raise frequency to shrink points → thousands; widen the band to
brighten → falling snow). Voronoi: cell scale = how many, distance threshold
= how big. Cells over a sphere ≈ `4π·scale²`, a frame sees under 1% of it, so
`scale=30` puts ~15 cells in shot — use `scale ≈ 110`. Angular radius =
`threshold / scale`; move both together.

**Backdrop geometry must be camera-visible only.** A large emissive shell
(planet, skybox) hit by diffuse/glossy rays becomes an area light every
shading point importance-samples — measured **145 s → 4.3 s**:
```python
for o in (planet, atmo):
    o.visible_diffuse = o.visible_glossy = o.visible_transmission = False
    o.visible_volume_scatter = o.visible_shadow = False
```

## 8. Export contract for three.js

- **Join per material within each rigid assembly before export.** Keep moving
  doors/drawers, their attachment groups and required named parts separate;
  never merge them into the static carcass just because they share paint.
  One Blender object = one glTF node =
  one draw call. A loose 11-material ship export was 78 draws;
  `bpy.ops.object.join()` per material group brought it to ~11.
- **Metres, Y-up**: `bpy.ops.export_scene.gltf(export_format='GLB',
  use_selection=True, export_apply=True, export_yup=True)`. (The source game
  exports `export_yup=False` because its own runtime is Y-up-in-Blender's-
  Z-up-slots by convention — a plain three.js consumer wants `export_yup=True`.)
- **Flat base colours or baked textures only** — procedural nodes don't
  survive the round trip (§6). `KHR_materials_emissive_strength` DOES
  survive — nav lights, emissive panels keep authored intensity.
- **Draco for real triangle counts**: position 14-bit quantization is ~1 mm
  over a 16 m interior (a tenth of the smallest chamfer), normal 10-bit,
  texcoord 12-bit, compression level 6.
- **WebP out of Blender directly is lossless regardless of the quality
  argument** — its own quality slider is silently ignored. PNG-dump from
  Blender, encode to WebP with PIL on the host if you need real lossy quality.
- **Check draw calls after adding anything** — a duplicated kit piece is one
  draw call against a shared mesh no matter how many times placed; a fresh
  join is not.

## 8b. Destructible vehicles (tank-damage/v1, 11 Oct 2026)

22 library tanks were made destructible by Astra-directed Blender jobs; the contract and pipeline live in forge-assets
`TANK-DAMAGE.md` (job writer `tools/vehicles/make_jobs_tanks2.py`, retrofit `make_jobs_tanks_retrofit.py`).
- TWO GLBs in the same frame: A = healthy, every bolt-on item its own `Part_<Name>` node (complete surface underneath, origin
  at its centre), `Barrel` child of `Gun`, `Muzzle` child of `Barrel` (identity rotation), `Fx_*` empties; B = damage only:
  `Hull_Damage` (`Dmg_` twins at their Part origins, `Scar_<face>` hit marks 2-4 mm proud, `Track_L/R_Broken`),
  `Turret_Damage` at the Turret origin (`Dmg_Turret_*`, `Scar_Turret_*`, `Gun_Broken` at the Gun origin), `Wreck_Hull`
  (material `Burnt`), `Wreck_Turret` with a closed underside. One file would draw wreck + healthy together (no hidden flag in glTF).
- Build the damage from COPIES of the healthy meshes (deform, cut, boolean, decimate) so everything lines up; the job renders
  `states.png` (healthy, hit, stripped, immobilised, wreck, turret off) from the two exported GLBs and looks at it.
- Retrofit an existing model from its previous build script + GLB + baked textures (copy them into a NEW remote dir): the
  offsets stay, so games aim the same way. Check the Muzzle position afterwards (the old Sherman's pointed backwards).
- Six to eight jobs at once worked (healthy file in 10-30 min, damage by ~60, 47-60 min in all; GPU gate on gex44).
  Each writes 50-105 MB into `~/.codex/sessions`: watch the local disk.
- A library card version is immutable: the importer refuses a version that belongs to another job.
- In game the model wants the runtime skin (FGE `module/vehicle-skin.mjs`, the JUGGERNAUT technique) on top of its bake.

## 9. Traps

- Bevel on bmesh-authored geometry does nothing (no shared edges) — weld
  first (§3). `o.scale` then Bevel makes pillows — apply scale first.
- `matrix_parent_inverse = parent.matrix_world.inverted()` cancels the
  parent transform (the "keep transform" idiom). Leave it at identity for
  the child to inherit the parent's rotation.
- A rotation about the wrong axis silently does nothing visible — a panel
  whose normal is +X doesn't change facing when rotated about X. Measure the
  world normal against the view vector rather than reasoning about it.
- Map Range with `To Min > To Max` and clamp on collapses to zero (clamps to
  an inverted interval) — invert with a `SUBTRACT` node instead.
- A Mix node in RGBA mode can silently drop a branch — several sockets share
  the name "Factor". Combine world contributions with two `Background` nodes
  into an `Add Shader` instead.
- The image preview downsamples — 4-px stars average away in a 1080p
  preview. Crop 1:1 and count bright pixels before concluding nothing rendered.
- A tangent-space NORMAL bake off a flat plane records nothing for vertical
  geometry — bake height by ray-traced Emission instead (§4).
- AO bakes along the surface normal — a kit skin wound facing away from the
  room bakes unoccluded everywhere.
- An AO map reaching pure black paints an unrecoverable dark line —
  floor-lift it (§4).
- Blender's WebP writer ignores its own quality setting, always lossless —
  PNG-dump and re-encode on the host (§8).
- Blender exits 0 even when the driven script raised — check stderr and the
  output file, not the return code (§2).
- A socket/exec service keeps Blender's *process* environment between calls
  — a default from a stale env var silently sends output into the wrong
  checkout. Assign output paths explicitly every call, never `setdefault`.

**Blender 5.x API changes** (4.x code fails on all of these):
- `Scene.node_tree` gone → `Scene.compositing_node_group`;
  `CompositorNodeComposite` no longer exists — the group's output socket IS
  the result.
- **The compositing group must contain a `CompositorNodeRLayers`.** Feeding
  it only from a Group Input means nothing depends on the render, so Blender
  skips rendering and writes a transparent black frame in 0.1 s. A
  suspiciously fast render is this bug.
- `Action.fcurves` is gone (slotted actions). Set
  `context.preferences.edit.keyframe_new_interpolation_type` *before*
  inserting keys.
- Glare/Lensdist settings moved from properties onto **sockets**; enums take
  display names (`"Fog Glow"`, `"Streaks"`, `"High"`), not old identifiers.
- Legacy addons still install to `~/Library/.../Blender/<ver>/scripts/addons/`
  on macOS — irrelevant on gex44, relevant for local proving.

## 10. Gates (measurable, not "looks right")

- **Independent export audit**: run
  `python3 scripts/audit_glb.py /absolute/path/asset.glb --strict` from this skill
  directory (requires numpy). It reports mesh-local triangles, nonfinite values,
  degenerate triangles, material groups and texture portability. Exit 1 means
  findings; exit 2 means invalid/unsupported input, never a clean bill of health.
  Audit uncompressed output before Draco/meshopt and inspect the compressed
  consumer separately. It does not validate winding, source solids, intersections,
  node-transformed placement, runtime draw calls or gameplay. Keep source meshes
  for topology/volume inspection; check transformed instance bounds in-game.
  The harbour correction's own empty issues list missed 16 zero-area triangles.

- **Rigged-asset rejection gates** (block the asset before it reaches a build; each one is a
  known failure class):
  - a character MAIN model still contains swappable gear (gear is separate parts on sockets);
  - action/animation files carry duplicate render meshes;
  - skeletons or bone names differ across actions of the same character;
  - a required role, socket (`target`, `ground`, `vfx-hit`, `vfx-death`, `attack-*`), collider,
    equipment-slot declaration or provenance field is absent;
  - toggling gear leaves visible fragments or holes without a declared underlayer boundary;
  - an attack animation has no authoritative timing and collision contract (see
    `_game-kit/core/ENEMY-CONTRACT.md`);
  - status language is truthful: `catalog-only` (recorded), `review-only` (inspector exists),
    `runtime` (gameplay loads it). Only `runtime` counts as shipped.
  Mechanical half: `audit_glb.py --rig --require-sockets target,ground,vfx-hit,vfx-death` reports
  skins, joint names, duplicate primitives (identical geometry buffers) and missing named nodes.
  Design after MengTo/Skills build-rigged-game-assets requirements (MIT); the human half stays a
  checklist.
- **Tone stats**: percentile clipping, e.g. "0.00% of pixels clip and the
  99th percentile is 165" — actionable; "looks flat" is not.
- **Contact sheets**: render every set-piece/angle into one grid image,
  judge the set at once rather than one screenshot at a time.
- **Clay check before any bake is trusted**: flat grey, hard key + rim +
  bounce, no textures, no emissives. A silhouette reading as a rectangle or
  an edge reading as infinitely sharp means the model isn't finished —
  textures and lighting hide box-stacking completely, flat clay does not.
- **Re-verify the capture isn't stale**: if the render/dev surface can
  hot-reload mid-capture, re-check the expected state is actually showing
  before saving, restart if not — a loading-state screenshot with a
  plausible number next to it is a silent false pass.
- **Draw-call and fps survey** after adding any asset: report draw count
  against the pre-change baseline (join-per-material should hold it flat)
  and frame time on the heaviest scene the asset appears in.
- **AO sanity**: print the raw bake's percentile spread (1st/10th/50th/90th)
  before floor-lifting — `min == 0` over a large area means winding or
  distance is wrong, not that floor-lift will fix it.
- Numbers not yet measured on gex44/RTX 4000 Ada (draft/final render time,
  bake time for a 4096 atlas): **unmeasured** — get one real run's numbers
  before writing them into a plan or a budget.

## Attribution

Distilled from TheLongSilence (MIT License, Copyright (c) 2026 Anshu
Chimala). Runnable reference code copied under the same license into
`reference/` — see `reference/INDEX.md`.

`reference/high-to-low-baking.md`, `baking-and-diagnostics.md`, `asset-delivery.md`,
`preflight-and-recovery.md` and `runtime-parity-and-diagnostics.md` are ported from
vercel-labs/vgpu `skills/vgpu/blender/references/` at commit 68cb1d8d198c (MIT License,
Copyright (c) 2025 Vercel, Inc.), adapted from vgpu/WebGPU to the three.js runtime.
`reference/critic-loop.md` is distilled from the same repository's asset agent flow.

codex
I’m using the Blender game-assets skill. The reference’s defining features are the long flared bow, low armoured hull, stepped bridge, and dense stern engine cluster; I’ll establish those proportions before adding surface detail.

hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
mcp: forge/skills_get started
hook: PreToolUse Completed
mcp: forge/memory_search started
hook: PreToolUse Completed
mcp: forge/coord_check started
mcp: forge/skills_get (completed)
hook: PreToolUse Completed
mcp: forge/coord_check started
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
mcp: forge/memory_search (completed)
mcp: forge/coord_check (completed)
exec
/bin/bash -lc 'for p in /home/claude-agent/forge-build/AGENTS.md /home/claude-agent/forge-build/forge-assets/AGENTS.md /home/claude-agent/forge-build/forge-assets/jobs/AGENTS.md; do if test -f "$p"; then cat "$p"; fi; done
cat /home/claude-agent/.agents/skills/blender-game-assets/reference/preflight-and-recovery.md
cat /home/claude-agent/.agents/skills/blender-game-assets/reference/critic-loop.md
ls -la
ssh gex44 '"'nvidia-smi --query-gpu=name,memory.used,memory.total --format=csv,noheader; pgrep -af blender | head -8'
date -u +%FT%TZ" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
mcp: forge/coord_check (completed)
 succeeded in 611ms:
<!-- Ported from vercel-labs/vgpu skills/vgpu/blender/references/preflight-and-recovery.md at commit 68cb1d8d198c (MIT, Copyright (c) 2025 Vercel, Inc.). Adapted for Forge: three.js runtime instead of vgpu/WebGPU, links rerouted. Upstream text otherwise kept so a re-sync stays diffable. -->

# Preflight and Recovery

Use this workflow for long bakes and scripted asset delivery. Keep a short manual edit lightweight; add checkpoints where repeating expensive work or confusing stale output is a real risk. These are asset execution requirements, independent of how many people or agents perform the work.

## Exercise the actual execution path first

Before an expensive run, provide and run a task-local preflight command using the same executable, working directory, dependency environment and helper paths as the intended run. Reuse existing project checks where possible. A version query or import from another directory is not an execution probe.

- Start native Blender (gex44 path and GPU gate wrapper: `SKILL.md` §2) and execute a minimal scene operation through Python. For scripted runs, use `--python-exit-code 1`; inspect logs and the expected output, not exit status alone.
- Exercise the chosen render/bake device with a tiny representative bake, then export, encode/decode and import a small fixture through the actual exporter and runtime loader. Await codec initialization. Resolve copied Node helpers from their real execution directory and module mode; a successful ESM import does not establish that a copied CommonJS helper can resolve its dependencies.
- Classify required and optional inputs before baking. Verify required files, codecs, writable output paths and capture dependencies. Missing optional metadata must have a documented fallback or be omitted deliberately, not fail final assembly after a completed bake.
- Capture and read one real target-renderer frame with the intended browser/image tools. Record the actual backend; a fallback renderer does not validate the requested backend. This probe establishes that the tools work, not final visual quality.

If a probe fails, fix or report that boundary before starting dependent expensive work. Do not keep retrying the unchanged failure. If sources may change during a run, execute an immutable snapshot including local imports; record external dependencies and verify snapshot hashes at completion.

## Keep stages independently recoverable

Give expensive stages explicit commands, inputs, outputs and validation. A task-local script may expose subcommands or separate entry points; no particular build framework is required. Do not force a bake when that asset does not need one.

| Stage | Evidence needed before its outputs can be reused |
| --- | --- |
| Prepare | Saved source/LOW checkpoint, resolved transforms and reproducible parameters |
| Validate geometry | Openings, contacts, normals and UV checks on evaluated/exported LOW; simple-material views, including relevant LODs |
| Bake | Lossless masters, actual pass settings and dependency identities, coverage and representative pixel checks |
| Export | Decodable serialized meshes, map/UV bindings and measured counts; reconcile exporter changes with prepared geometry |
| Package | Required files, decoded texture error, channels/mips and delivery manifest with hashes |
| Verify runtime | Actual target-backend captures from matched cameras, independent map toggles, measured costs and renderer errors |

For each attempt, save the exact command, input/dependency hashes, tool identities, exit outcome, output hashes, validation results and failure reason. Mark a stage complete only after its outputs pass its checks. Keep failed attempts and logs distinct from completed checkpoints. File existence or a successful process alone is not proof of completion.

On retry, start at the earliest invalid stage and revalidate dependent outputs. If packaging fails after a verified bake/export, resume packaging from those artifacts; do not regenerate the scene merely to rerun a copy step. When geometry, normals or lighting change, use the [bake dependency rules](baking-and-diagnostics.md#reuse-bakes-by-their-dependencies) to decide which passes need new identities.

## Validate a candidate before replacing delivery assets

Keep candidate assets separate from the last working delivery. Verify the candidate manifest and served build/asset identities before capture; avoid a preview that silently loads missing files from the old asset set. Promote only the validated files together with their matching manifest, retain a recoverable previous version, and smoke-check the delivered URL after replacement. Report whether the replacement is atomic; per-file writes do not make the whole asset set atomic.

Checks establish structural and runtime evidence, not aesthetic acceptance. Pair them with the matched visual review in [the critic loop](critic-loop.md) and the gates in `SKILL.md` §10.
<!-- Distilled from vercel-labs/vgpu .claude/skills/vgpu-agent-flow/references/asset-iteration.md and
.subharness/agents/asset-author.ts + asset-critic.ts at commit 68cb1d8d198c (MIT, Copyright (c) 2025 Vercel, Inc.),
rewritten for Forge lanes (forge-agent, Astra author, a second model family as critic). -->

# Author and critic loop for a Blender asset

Use this for any authored asset that will be judged by eye: a hero prop, a character, a building, an
environment. Skip it for a mechanical re-export.

## Seats

| Seat | Who | Owns |
| --- | --- | --- |
| Author | Astra (operator law: Blender work goes to Astra) | Geometry, authored materials, UVs, bakes, Blender renders, the export |
| Runtime | The root, or one worker when the shader work is real | Loading the export in the game's actual three.js path, captures, measured costs |
| Critic | A different model family from the author, reading the real images | Findings only. Never edits the asset |

The critic must open the actual capture files. A critic that cannot read images says so and returns
BLOCKED; it never writes a visual verdict from metrics or from the author's description.

## Budget

- Default: **3 revisions, at most 2 critic passes per revision.** The brief may set another cap.
- A cap is an execution limit, not acceptance. Cap reached with open visual findings = `REVISE`
  reported as such, never a `PASS`.
- No unattended improvement loop past the cap.

## Before the first render

Write in the task folder: scope, target cameras (gameplay view, hero, rear, closest required view),
output paths, budgets (triangles, exported vertices, texture bytes and GPU memory, draw calls) and
the revision cap. Budgets are task inputs; do not copy another asset's numbers.

Run the [preflight](preflight-and-recovery.md) once: Blender starts and runs a scene operation, a
tiny bake and export round-trips through the real loader, one real runtime frame is captured.

Integrate a cheap LOW blockout in the runtime at this stage. Scale, axis, camera and material
contract problems are found before an expensive bake, not after.

## Each revision keeps

- the source revision or parameters that rebuild the previous asset;
- real hero, rear and close-up captures, same camera, light, exposure and pose every time;
- triangles, exported vertices, primitives, material count, file bytes, texture GPU memory;
- runtime draw counters, kept apart from offline estimates;
- the critic's findings, the fixes chosen, and the next measured result.

## The critic pass

The critic receives the previous AND the current captures and metrics under matched cameras (or
an explicit "first revision, no baseline"), the reference image, and the brief. It returns:

- **at most five findings**, ordered by impact, each with a stable id, the evidence path (whole
  view plus crop or image coordinates), the visible symptom, a suggested correction and a
  **measurable acceptance condition**;
- regressions against the previous revision;
- resolved / remaining / regressed status of earlier findings on a follow-up pass;
- `PASS`, `REVISE` or `BLOCKED`, with the limits of its evidence.

It compares against the reference as well as the previous revision: clean topology and progress
since last time do not make the asset match the reference. It separates the observed defect from
the suspected cause. A small whole-image difference can hide severe local damage (thin trim,
stairs, silhouette edges): it inspects crops at each delivered LOD. Design ideas are suggestions,
not new acceptance requirements.

When the cause could be the asset or the renderer, it asks for the diagnostic captures in
[runtime parity](runtime-parity-and-diagnostics.md) (maps off, AO neutral, lightmap off) rather
than guessing.

## Rules that stop false passes

- A generated concept image is never proof of a working model. Label concepts as concepts; accept
  only on real renders of the real export.
- Requested bakes need bake provenance (what was baked, from what, at what settings) and matched
  runtime captures with each contribution switched off in turn. Vertex tint and runtime shadows
  are not substitutes for a requested AO or lightmap bake.
- An atlas repair is checked on the full matched views, not only on the crop that was broken: a new
  layout can fix one edge and turn another face black.
- One writer per handoff file. A reply never gets appended to a request file another agent will
  regenerate. Superseded manifests and failed captures stay on disk.
- The author hands the root a compact result: verdict, the few decisive images, the metrics table.
  Full capture sets stay on disk; the root does not load every image.
- A user's rejection or a changed brief reopens any earlier `PASS`.

## Lessons

When a revision teaches something that will recur, write it as: evidence path, symptom, cause,
intervention, matched before/after result, scope. The root checks it and makes a narrow edit to this
skill. Reject task-specific style preferences dressed up as general rules.
total 732
drwxrwxr-x  2 claude-agent claude-agent   4096 Oct 16 19:29 .
drwxrwxr-x 78 claude-agent claude-agent   4096 Oct 16 18:33 ..
-rw-rw-r--  1 claude-agent claude-agent   7474 Oct 16 19:29 PROMPT.txt
-rw-rw-r--  1 claude-agent claude-agent  77355 Oct 16 19:30 astra.log
-rw-rw-r--  1 claude-agent claude-agent   5150 Oct 16 18:37 job.json
-rw-rw-r--  1 claude-agent claude-agent 636764 Oct 16 18:35 sheet.jpg
-rw-rw-r--  1 claude-agent claude-agent    951 Oct 16 18:37 sheet_prompt.txt
-rw-rw-r--  1 claude-agent claude-agent     21 Oct 16 19:29 started.txt
NVIDIA RTX 4000 SFF Ada Generation, 7524 MiB, 20475 MiB
18867 python3 /opt/astra-blender/blender_exec_server.py
18880 python3 /opt/astra-blender/blender_exec_server.py
40540 bash -c cd /root/room-fit-pack/prop-lane && while pgrep -f blender >/dev/null 2>&1; do sleep 5; done; echo BLENDER_DONE; cat optimize_run7.log
87189 bash -c cd /root/room-fit-pack/prop-lane && while pgrep -f blender >/dev/null 2>&1; do sleep 4; done; echo BLENDER_DONE; cat optimize_run8.log
3939376 python3 /opt/astra-blender/blender_exec_server.py
4042599 python3 /opt/gpu-gate/gpu_gate.py --name blender --need-mib 6000 --priority batch -- /root/blender-spike/blender-5.2.0-linux-x64/blender.real -b --python-exit-code 1 --python /root/fal-author/stealth-interceptor-v1/build_stealth-interceptor.py
4042603 /root/blender-spike/blender-5.2.0-linux-x64/blender.real -b --python-exit-code 1 --python /root/fal-author/stealth-interceptor-v1/build_stealth-interceptor.py
4048870 bash -c nvidia-smi --query-gpu=name,memory.used,memory.total --format=csv,noheader; pgrep -af blender | head -8
2026-10-16T19:30:10Z

hook: PreToolUse
hook: PreToolUse Completed
mcp: forge/coord_claim started
mcp: forge/coord_claim (completed)
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mcp: forge/coord_claim started
mcp: forge/coord_claim (completed)
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exec
/bin/bash -lc "ssh gex44 mkdir -p /root/fal-author/heavy-cruiser-naval-v1
python3 - <<'PY'
import json,urllib.request
q=json.load(urllib.request.urlopen('https://api.polyhaven.com/assets?t=textures'))
for k,v in q.items():
 if any(w in k for w in ['metal','steel','paint']): print(k, v.get('name'), v.get('categories'))
PY" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 exited 1 in 1439ms:
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
  File "/usr/lib/python3.12/urllib/request.py", line 215, in urlopen
    return opener.open(url, data, timeout)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/urllib/request.py", line 521, in open
    response = meth(req, response)
               ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/urllib/request.py", line 630, in http_response
    response = self.parent.error(
               ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/urllib/request.py", line 559, in error
    return self._call_chain(*args)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/urllib/request.py", line 492, in _call_chain
    result = func(*args)
             ^^^^^^^^^^^
  File "/usr/lib/python3.12/urllib/request.py", line 639, in http_error_default
    raise HTTPError(req.full_url, code, msg, hdrs, fp)
urllib.error.HTTPError: HTTP Error 403: Forbidden

hook: PreToolUse
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hook: PreToolUse Completed
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hook: PreToolUse Completed
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exec
/bin/bash -lc "ssh gex44 \"python3 - <<'PY'
import urllib.request,json
r=urllib.request.Request('https://api.polyhaven.com/assets?t=textures',headers={'User-Agent':'Mozilla/5.0'})
a=json.load(urllib.request.urlopen(r))
for k,v in a.items():
 if any(w in k for w in ['metal','steel','paint']): print(k,v.get('name'))
PY\"" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 665ms:
black_painted_planks Black Painted Planks
blue_metal_plate Blue Metal Plate
blue_painted_planks Blue Painted Planks
box_profile_metal_sheet Box Profile Metal Sheet
concrete_floor_painted Concrete Floor Painted
distressed_painted_planks Distressed Painted Planks
green_metal_rust Green Metal Rust
metal_grate_rusty Metal Grate Rusty
metal_plate Metal Plate
metal_plate_02 Metal Plate 02
painted_brick Painted Brick
painted_concrete Painted Concrete
painted_concrete_02 Painted Concrete 02
painted_metal_shutter Painted Metal Shutter
painted_plaster_wall Painted Plaster Wall
painted_worn_brick Painted Worn Brick
peeling_painted_wall Peeling Painted Wall
rusty_metal Rusty Metal
rusty_metal_02 Rusty Metal 02
rusty_metal_03 Rusty Metal 03
rusty_metal_04 Rusty Metal 04
rusty_metal_05 Rusty Metal 05
rusty_metal_grid Rusty Metal Grid
rusty_metal_sheet Rusty Metal Sheet
rusty_metal_shutter Rusty Metal Shutter
rusty_painted_metal Rusty Painted Metal
wood_peeling_paint_weathered Wood Peeling Paint Weathered

hook: PreToolUse
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exec
/bin/bash -lc "rg --files /home/claude-agent/forge-build/forge-assets | rg '(audit|validate|render|build_).*\\.py"'$'"' | head -35
which forge-agent
df -h /" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
/home/claude-agent/forge-build/forge-assets/tools/space/build_spike_space.py
/home/claude-agent/forge-build/forge-assets/tools/kit_uv_audit.py
/home/claude-agent/forge-build/forge-assets/tools/build_site.py
/home/claude-agent/forge-build/forge-assets/tools/build_index.py
/home/claude-agent/forge-build/forge-assets/tools/vehicles/build_spike.py
/home/claude-agent/forge-build/forge-assets/jobs/le-mans-prototype-v1/build_le-mans-prototype.py
/home/claude-agent/forge-build/forge-assets/jobs/le-mans-prototype-v1/validation/validate_delivery.py
/home/claude-agent/forge-build/forge-assets/jobs/rally-car-v1/build_rally-car.py
/home/claude-agent/forge-build/forge-assets/jobs/panzer-iv-tank-v1/build_panzer-iv-tank.py
/home/claude-agent/forge-build/forge-assets/jobs/le-mans-prototype-g4-v1/build_le-mans-prototype-g4.py
/home/claude-agent/forge-build/forge-assets/jobs/science-explorer-v1/build_science-explorer.py
/home/claude-agent/forge-build/forge-assets/jobs/hop-critters-v1/build_critters.py
/home/claude-agent/forge-build/forge-assets/jobs/medieval-hero-houses-v1/qa/validate.py
/home/claude-agent/forge-build/forge-assets/jobs/stock-car-g4-v1/build_stock-car-g4.py
/home/claude-agent/forge-build/forge-assets/jobs/stock-car-v1/build_stock-car.py
/home/claude-agent/forge-build/forge-assets/jobs/interceptor-hardsf-v1/build_interceptor-hardsf.py
/home/claude-agent/forge-build/forge-assets/jobs/medieval-hero-houses-v1/qa/pass1/build_kit.py
/home/claude-agent/forge-build/forge-assets/jobs/leclerc-tank-v2/build_leclerc-tank.py
/home/claude-agent/forge-build/forge-assets/jobs/merkava-tank-v1/build_merkava-tank.py
/home/claude-agent/forge-build/forge-assets/jobs/family-sedan-g4-v1/build_family-sedan-g4.py
/home/claude-agent/forge-build/forge-assets/jobs/formula-racer-v1/build_formula-racer.py
/home/claude-agent/forge-build/forge-assets/jobs/medieval-hero-houses-v1/build_kit_r1.py
/home/claude-agent/forge-build/forge-assets/jobs/medieval-hero-houses-v1/build_kit.py
/home/claude-agent/forge-build/forge-assets/jobs/medieval-hero-houses-v1/build_kit_r2.py
/home/claude-agent/forge-build/forge-assets/jobs/medieval-hero-houses-v1/build_kit_r0.py
/home/claude-agent/forge-build/forge-assets/jobs/euro-hatchback-g4-v1/build_euro-hatchback-g4.py
/home/claude-agent/forge-build/forge-assets/jobs/renault-ft-tank-v1/revisions/final-pass/build_renault-ft-tank.py
/home/claude-agent/forge-build/forge-assets/jobs/leopard2-tank-v1/build_leopard2-tank.py
/home/claude-agent/forge-build/forge-assets/jobs/tiger-heavy-tank-v2/build_tiger-heavy-tank.py
/home/claude-agent/forge-build/forge-assets/jobs/t90-tank-v3/build_t90-tank.py
/home/claude-agent/forge-build/forge-assets/jobs/panther-tank-v1/build_panther-tank.py
/home/claude-agent/forge-build/forge-assets/jobs/renault-ft-tank-v1/revisions/r2/build_renault-ft-tank.py
/home/claude-agent/forge-build/forge-assets/jobs/alien-harvester-v1/build_alien-harvester.py
/home/claude-agent/forge-build/forge-assets/jobs/stealth-interceptor-v1/build_stealth-interceptor.py
/home/claude-agent/forge-build/forge-assets/jobs/gt-racer-g4-v1/build_gt-racer-g4.py
/home/claude-agent/bin/forge-agent
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       150G  138G  6.5G  96% /

codex
The dimensions and parts layout are set: four main turrets, six flank turrets, missile racks, and six recessed engine nozzles. I’m using shared tiled bakes at a consistent metre scale so the 450 m hull retains surface detail within the 1K texture limit.

hook: PreToolUse
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exec
/bin/bash -lc "cat > build_heavy-cruiser-naval.py <<'PY'
#"'!/usr/bin/env python3
"""Original naval heavy cruiser. Run with Blender 5.2 --background --python-exit-code 1.
Clean deterministic build: CC0 downloads -> Cycles tile bakes -> geometry -> GLB -> renders.
Blender authoring frame X=port, -Y=nose, Z=up; glTF X=port,Y=up,Z=nose.
"""
import bpy, bmesh, math, os, sys, json, random, urllib.request, struct, time
from pathlib import Path
from mathutils import Vector, Matrix
from math import sin, cos, pi
import numpy as np
ROOT=Path(__file__).resolve().parent
CACHE=ROOT/'"'textures'; CACHE.mkdir(exist_ok=True)
QA=ROOT/'qa'; QA.mkdir(exist_ok=True)
random.seed(27)
START=time.time()
PAINTS=[('Naval grey',[.32,.34,.36]),('Gunmetal',[.105,.13,.155]),('Olive drab',[.23,.265,.14]),('Desert sand',[.57,.43,.265]),('Arctic white',[.79,.83,.86]),('Deep navy',[.055,.105,.20])]
MATS=[]; ASSEMBLIES={}; SOCKETS=[]; MOVING={}

def log(s): print('CRUISER',round(time.time()-START,1),s,flush=True)
def reset():
 bpy.ops.object.select_all(action='SELECT'); bpy.ops.object.delete(use_global=False)
 for d in list(bpy.data.materials): bpy.data.materials.remove(d)
 sc=bpy.context.scene; sc.render.engine='CYCLES'; sc.cycles.samples=24; sc.cycles.use_denoising=True
 prefs=bpy.context.preferences.addons['cycles'].preferences
 for mode in ['OPTIX','CUDA']:
  try:
   prefs.compute_device_type=mode; prefs.get_devices()
   if any(d.type==mode for d in prefs.devices):
    for d in prefs.devices: d.use=(d.type==mode)
    sc.cycles.device='GPU'; log('GPU '+mode); break
  except Exception: pass
 else: raise RuntimeError('GPU required')
 sc.unit_settings.system='METRIC'; sc.unit_settings.scale_length=1
 sc.render.image_settings.file_format='PNG'; sc.render.film_transparent=False
 sc.view_settings.view_transform='AgX'; sc.view_settings.exposure=.35
 sc.render.resolution_percentage=100
 sc.world=bpy.data.worlds.new('Space')
 return sc
SC=reset()

def download():
 for ident in ['metal_plate','rusty_metal_04']:
  for typ in ['diff','nor_gl','arm']:
   p=CACHE/f'{ident}_{typ}_1k.jpg'
   if not p.exists():
    url=f'https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/{ident}/{ident}_{typ}_1k.jpg'
    log('Download '+url)
    urllib.request.urlretrieve(url,p)

def node(nt,kind,**kw):
 n=nt.nodes.new(kind)
 for k,v in kw.items(): setattr(n,k,v)
 return n

def bake_material(name,kind):
 m=bpy.data.materials.new(name); m.use_nodes=True; nt=m.node_tree; nt.nodes.clear(); L=nt.links.new
 out=node(nt,'ShaderNodeOutputMaterial'); bs=node(nt,'ShaderNodeBsdfPrincipled'); L(bs.outputs['BSDF'],out.inputs['Surface'])
 uv=node(nt,'ShaderNodeTexCoord')
 def tex(filename,non=False):
  t=node(nt,'ShaderNodeTexImage'); t.image=bpy.data.images.load(str(CACHE/filename),check_existing=True)
  if non:t.image.colorspace_settings.name='Non-Color'
  L(uv.outputs['UV'],t.inputs['Vector']); return t
 def mathn(op,a,b=None):
  n=node(nt,'ShaderNodeMath',operation=op)
  if hasattr(a,'node'): L(a,n.inputs[0])
  else:n.inputs[0].default_value=a
  if b is not None:
   if hasattr(b,'node'):L(b,n.inputs[1])
   else:n.inputs[1].default_value=b
  return n.outputs[0]
 def mix(a,b,factor,blend='MIX'):
  n=node(nt,'ShaderNodeMixRGB',blend_type=blend); n.inputs[0].default_value=factor
  if hasattr(a,'node'):L(a,n.inputs[1])
  else:n.inputs[1].default_value=(*a,1)
  if hasattr(b,'node'):L(b,n.inputs[2])
  else:n.inputs[2].default_value=(*b,1)
  return n.outputs[0]
 rough=.47; metal=.7
 if kind in ['paint','metal','dark','weapon','deck']:
  photo=tex('metal_plate_diff_1k.jpg'); nor=tex('metal_plate_nor_gl_1k.jpg',True); arm=tex('metal_plate_arm_1k.jpg',True)
  rust=tex('rusty_metal_04_diff_1k.jpg')
  bw=node(nt,'ShaderNodeRGBToBW'); L(photo.outputs['Color'],bw.inputs[0])
  normalize=mathn('MULTIPLY_ADD',bw.outputs[0],.32); normalize.node.inputs[2].default_value=.65
  brick=node(nt,'ShaderNodeTexBrick'); L(uv.outputs['UV'],brick.inputs['Vector'])
  brick.inputs['Scale'].default_value=1; brick.inputs['Mortar Size'].default_value=.0035
  brick.inputs['Mortar Smooth'].default_value=.002; brick.inputs['Brick Width'].default_value=.5; brick.inputs['Row Height'].default_value=.25
  brick.inputs['Color1'].default_value=(.9,.9,.9,1); brick.inputs['Color2'].default_value=(1,1,1,1); brick.inputs['Mortar'].default_value=(.28,.28,.28,1)
  noise=node(nt,'ShaderNodeTexNoise'); L(uv.outputs['UV'],noise.inputs['Vector']); noise.inputs['Scale'].default_value=145; noise.inputs['Detail'].default_value=2
  base=normalize
  if kind=='paint':
   base=mix(normalize,brick.outputs['Color'],.45,'MULTIPLY'); rough=.52; metal=.48
  elif kind=='metal':
   base=mix(photo.outputs['Color'],(.36,.40,.44),.72); rough=.34; metal=.88
  elif kind=='dark':
   base=mix(photo.outputs['Color'],(.034,.042,.051),.91); rough=.57; metal=.75
  elif kind=='weapon':
   base=mix(photo.outputs['Color'],(.18,.20,.22),.72); rough=.4; metal=.82
  else:
   base=mix(normalize,brick.outputs['Color'],.65,'MULTIPLY'); base=mix(base,(.10,.12,.135),.82); rough=.67; metal=.55
  # elongated grime and fine impact pitting, baked into the shared tile
  mapping=node(nt,'ShaderNodeVectorMath',operation='MULTIPLY'); L(uv.outputs['UV'],mapping.inputs[0]); mapping.inputs[1].default_value=(12,1.2,1)
  grime=node(nt,'ShaderNodeTexNoise'); L(mapping.outputs[0],grime.inputs['Vector']); grime.inputs['Scale'].default_value=6; grime.inputs['Detail'].default_value=3
  grimecol=node(nt,'ShaderNodeValToRGB'); L(grime.outputs['Fac'],grimecol.inputs[0]); grimecol.color_ramp.elements[0].color=(.58,.58,.58,1); grimecol.color_ramp.elements[1].color=(1,1,1,1)
  base=mix(base,grimecol.outputs[0],.22,'MULTIPLY')
  if kind not in ['paint','deck']:base=mix(base,rust.outputs['Color'],.035)
  L(base,bs.inputs['Base Color'])
  nm=node(nt,'ShaderNodeNormalMap'); nm.inputs['Strength'].default_value=.22; L(nor.outputs['Color'],nm.inputs['Color'])
  bump=node(nt,'ShaderNodeBump'); bump.inputs['Strength'].default_value=.22; bump.inputs['Distance'].default_value=.045
  L(nm.outputs[0],bump.inputs['Normal']); L(noise.outputs['Fac'],bump.inputs['Height']); L(bump.outputs[0],bs.inputs['Normal'])
  if kind in ['paint','deck']:
   b2=node(nt,'ShaderNodeBump'); b2.inputs['Strength'].default_value=.38; b2.inputs['Distance'].default_value=.09
   L(bump.outputs[0],b2.inputs['Normal']); L(brick.outputs['Fac'],b2.inputs['Height']); b2.invert=True; L(b2.outputs[0],bs.inputs['Normal'])
  sep=node(nt,'ShaderNodeSeparateColor'); L(arm.outputs['Color'],sep.inputs[0])
  roughout=mathn('MULTIPLY_ADD',sep.outputs['Green'],.18); roughout.node.inputs[2].default_value=rough-.09
  aoout=mathn('MULTIPLY_ADD',sep.outputs['Red'],.22); aoout.node.inputs[2].default_value=.78
 else:
  colors={'glass':(.075,.16,.20),'engine':(.035,.46,1.0),'lamp':(.6,.8,1)}
  base=colors[kind]; bs.inputs['Base Color'].default_value=(*base,1); rough=.18 if kind=='glass' else .38; metal=.15
  roughout=None; aoout=None
 bs.inputs['Metallic'].default_value=metal; bs.inputs['Roughness'].default_value=rough
 # A real Cycles bake on a UV tile, used at 8 m, 4 m or 2 m intervals throughout.
 bpy.ops.mesh.primitive_plane_add(size=2); plane=bpy.context.object; plane.name='BakeTile'; plane.data.materials.append(m)
 SC.cycles.samples=8; SC.render.bake.margin=8; SC.render.bake.use_clear=True
 baked={}
 for channel,res in [('Base',1024 if kind in ['paint','metal','dark','weapon','deck'] else 32),('Normal',1024 if kind in ['paint','metal','dark','weapon','deck'] else 32),('ORM',512 if kind in ['paint','metal','dark','weapon','deck'] else 32)]:
  im=bpy.data.images.new(name+'_'+channel,width=res,height=res,alpha=False)
  if channel"'!='"'Base':im.colorspace_settings.name='Non-Color'
  target=node(nt,'ShaderNodeTexImage'); target.image=im; nt.nodes.active=target
  if channel=='Base':
   emit=node(nt,'ShaderNodeEmission')
   if hasattr(base,'node'):L(base,emit.inputs[0])
   else:emit.inputs[0].default_value=(*base,1)
   L(emit.outputs[0],out.inputs['Surface']); bpy.ops.object.bake(type='EMIT'); nt.nodes.remove(emit)
  elif channel=='Normal':
   L(bs.outputs[0],out.inputs['Surface']); bpy.ops.object.bake(type='NORMAL')
  else:
   comb=node(nt,'ShaderNodeCombineColor'); comb.inputs['Red'].default_value=1; comb.inputs['Green'].default_value=rough; comb.inputs['Blue'].default_value=metal
   if aoout:L(aoout,comb.inputs['Red'])
   if roughout:L(roughout,comb.inputs['Green'])
   emit=node(nt,'ShaderNodeEmission'); L(comb.outputs[0],emit.inputs[0]); L(emit.outputs[0],out.inputs['Surface']); bpy.ops.object.bake(type='EMIT'); nt.nodes.remove(emit)
  im.filepath_raw=str(CACHE/f'{name}_{channel}.png'); im.file_format='PNG'; im.save(); baked[channel]=im
  nt.nodes.remove(target)
 bpy.data.objects.remove(plane,do_unlink=True)
 nt.nodes.clear(); out=node(nt,'ShaderNodeOutputMaterial'); bs=node(nt,'ShaderNodeBsdfPrincipled'); L(bs.outputs[0],out.inputs[0])
 for ch in ['Base','Normal','ORM']:
  t=node(nt,'ShaderNodeTexImage',name=ch); t.image=baked[ch]
  if ch=='Base':
   if name=='Paint':
    mult=node(nt,'ShaderNodeMixRGB',name='FactionTint',blend_type='MULTIPLY'); mult.inputs[0].default_value=1; mult.inputs[2].default_value=(*PAINTS[0][1],1); L(t.outputs[0],mult.inputs[1]); L(mult.outputs[0],bs.inputs['Base Color'])
   else:L(t.outputs[0],bs.inputs['Base Color'])
  elif ch=='Normal':
   nm=node(nt,'ShaderNodeNormalMap'); L(t.outputs[0],nm.inputs['Color']); L(nm.outputs[0],bs.inputs['Normal'])
  else:
   sp=node(nt,'ShaderNodeSeparateColor'); L(t.outputs[0],sp.inputs[0]); L(sp.outputs['Green'],bs.inputs['Roughness']); L(sp.outputs['Blue'],bs.inputs['Metallic'])
   group=bpy.data.node_groups.get('glTF Material Output')
   if group is None:
    group=bpy.data.node_groups.new('glTF Material Output','ShaderNodeTree'); group.interface.new_socket(name='Occlusion',in_out='INPUT',socket_type='NodeSocketFloat')
   occ=node(nt,'ShaderNodeGroup'); occ.node_tree=group; L(sp.outputs['Red'],occ.inputs['Occlusion'])
 if kind in ['engine','lamp']:
  L(nt.nodes['Base'].outputs[0],bs.inputs['Emission Color']); bs.inputs['Emission Strength'].default_value=2.5 if kind=='engine' else 1.4
 if kind=='glass':
  bs.inputs['Alpha'].default_value=.62; bs.inputs['Metallic'].default_value=.25
  m.surface_render_method='DITHERED'; m.diffuse_color=(.075,.16,.20,.62)
 MATS.append(m); log('Baked '+name)
 return len(MATS)-1

# Component builders accumulate geometry directly; no thousands of scene nodes.
class Part:
 def __init__(self,name,pivot=(0,0,0),parent=None,rot=(0,0,0)):
  self.name=name; self.pivot=Vector(pivot); self.parent=parent; self.rot=rot; self.v=[]; self.f=[]; self.mi=[]; self.sm=[]
  ASSEMBLIES[name]=self
 def add(self,v,f,mat=0,bevel=0,smooth=False):
  bm=bmesh.new(); vv=[bm.verts.new(p) for p in v]
  for face in f:
   try:bm.faces.new([vv[i] for i in face])
   except ValueError:pass
  bmesh.ops.recalc_face_normals(bm,faces=list(bm.faces))
  if bevel:
   bmesh.ops.bevel(bm,geom=list(bm.edges),offset=bevel,segments=2,affect='EDGES',profile=.5)
   bmesh.ops.recalc_face_normals(bm,faces=list(bm.faces))
  bm.verts.ensure_lookup_table(); bm.verts.index_update(); off=len(self.v)
  self.v += [tuple(x.co) for x in bm.verts]
  for face in bm.faces:
   self.f.append(tuple(off+x.index for x in face.verts)); self.mi.append(mat); self.sm.append(smooth and len(face.verts)==4)
  bm.free()
 def box(self,c,d,mat=0,b=.12,rot=None):
  v=[Vector((x*d[0]/2,y*d[1]/2,z*d[2]/2)) for x,y,z in [(-1,-1,-1),(1,-1,-1),(1,1,-1),(-1,1,-1),(-1,-1,1),(1,-1,1),(1,1,1),(-1,1,1)]]
  if rot:v=[rot@p for p in v]
  v=[tuple(p+Vector(c)) for p in v]
  self.add(v,[(0,3,2,1),(4,5,6,7),(0,1,5,4),(1,2,6,5),(2,3,7,6),(3,0,4,7)],mat,min(b,min(d)*.22))
 def loft(self,sections,mat=0,b=.2):
  # z-oriented chamfered rectangle rings: z, halfwidth, halfdepth, ycenter, chamfer
  v=[]
  for z,w,l,y,c in sections:
   v.extend([(w-c,y-l,z),(w,y-l+c,z),(w,y+l-c,z),(w-c,y+l,z),(-w+c,y+l,z),(-w,y+l-c,z),(-w,y-l+c,z),(-w+c,y-l,z)])
  f=[tuple(reversed(range(8))),tuple(range(len(v)-8,len(v)))]
  for j in range(len(sections)-1):
   for i in range(8):f.append((j*8+i,j*8+(i+1)%8,(j+1)*8+(i+1)%8,(j+1)*8+i))
  self.add(v,f,mat,b)
 def cyl(self,a,b,r,mat=1,n=16,r2=None):
  a=Vector(a); b=Vector(b); d=b-a; q=d.to_track_quat('Z','Y'); r2=r if r2 is None else r2
  # profiled bevel at each end
  h=d.length; e=min(.12,r*.11,h*.14); pr=[(0,max(.01,r-e)),(e,r),(h-e,r2),(h,max(.01,r2-e))]
  v=[tuple(a+q@Vector((rr*cos(i*2*pi/n),rr*sin(i*2*pi/n),z))) for z,rr in pr for i in range(n)]
  f=[tuple(reversed(range(n))),tuple(range(3*n,4*n))]
  for j in range(3):
   for i in range(n):f.append((j*n+i,j*n+(i+1)%n,(j+1)*n+(i+1)%n,(j+1)*n+i))
  self.add(v,f,mat,0,True)
 def tube(self,c,profile,mat=1,n=48,axis='Y'):
  # closed lathed sectional profile; explicit inner wall gives real nozzle / muzzle depth
  v=[]
  for along,r in profile:
   for i in range(n):
    a=2*pi*i/n; v.append((c[0]+r*cos(a),c[1]+along,c[2]+r*sin(a)) if axis=='Y' else (c[0]+r*cos(a),c[1]+r*sin(a),c[2]+along))
  f=[]
  for j in range(len(profile)):
   j2=(j+1)%len(profile)
   for i in range(n):f.append((j*n+i,j*n+(i+1)%n,j2*n+(i+1)%n,j2*n+i))
  self.add(v,f,mat,0,True)
 def create(self):
  mesh=bpy.data.meshes.new(self.name); mesh.from_pydata(self.v,[],self.f); mesh.update()
  ob=bpy.data.objects.new(self.name,mesh); bpy.context.collection.objects.link(ob)
  for m in MATS:mesh.materials.append(m)
  for p,mi,sm in zip(mesh.polygons,self.mi,self.sm):p.material_index=mi;p.use_smooth=sm
  uv=mesh.uv_layers.new(name='UVMap')
  for p in mesh.polygons:
   axis=max(range(3),key=lambda i:abs(p.normal[i])); scale=8 if p.material_index in [0,4] else 3.2
   for li in p.loop_indices:
    co=mesh.vertices[mesh.loops[li].vertex_index].co
    a,b=(co.y,co.z) if axis==0 else ((co.x,co.z) if axis==1 else (co.x,co.y))
    uv.data[li].uv=(a/scale,b/scale)
  ob.location=self.pivot; ob.rotation_euler=self.rot
  if self.parent:ob.parent=ASSEMBLIES[self.parent].ob
  self.ob=ob; return ob

def socket(name,p,parent='Hull',rot=(0,0,0),**meta):SOCKETS.append((name,p,parent,rot,meta))
def pipe(p,points,r=.18,mat=1):
 for a,b in zip(points,points[1:]):p.cyl(a,b,r,mat,10)
def rail(p,points):
 for pos in points:p.cyl(pos,(pos[0],pos[1],pos[2]+1.1),.055,1,8)
 for h in [.45,1.1]:pipe(p,[(x,y,z+h) for x,y,z in points],.045)
def bolts(p,c,dx,dy,z,mat=1):
 for x in [-dx,dx]:
  for y in [-dy,dy]:p.cyl((c[0]+x,c[1]+y,z),(c[0]+x,c[1]+y,z+.12),.14,mat,6)

def build_geometry():
 H=Part('Hull')
 # Eight-sided naval hull with asymmetric height and a long flared, raked ram.
 stations=[(-225,1.1,-19,7),(-207,7,-21,14),(-176,15,-22,16),(-133,23,-23,17),(-82,27,-24,18),(20,29,-24,18),(102,28,-23,18),(160,25,-20,16),(184,21,-17,14)]
 def cross(y,w,bot,top):return [(0,y,top),(w*.77,y,top),(w,y,top-7),(w,y,bot+11),(w*.72,y,bot),(0,y,bot),(-w*.72,y,bot),(-w,y,bot+11),(-w,y,top-7),(-w*.77,y,top)]
 verts=[]
 for s in stations:verts+=cross(*s)
 faces=[tuple(reversed(range(10))),tuple(range(len(verts)-10,len(verts)))]
 for j in range(len(stations)-1):
  for k in range(10):faces.append((j*10+k,j*10+(k+1)%10,(j+1)*10+(k+1)%10,(j+1)*10+k))
 H.add(verts,faces,0,.45)
 # Flared bow cheeks: distinct swept plates with a recessed central spine.
 for sign in [-1,1]:
  vs=[(sign*x,y,z) for x,y,z in [(1,-225,-19),(5,-210,11),(13,-178,15),(23,-130,15),(26,-82,10),(26,-82,-16),(18,-135,-20),(8,-188,-21),(2.5,-219,-20),(6,-207,-8),(17,-167,3),(24,-117,4)]]
  fs=[(0,1,2,10,9),(2,3,11,10),(3,4,5,11),(11,5,6,7,9,10),(9,7,8,0),(0,8,7,6,5,4,3,2,1)]
  H.add(vs,fs,0,.32)
  # layered lower armour rail following the curve of the hull
  for a,b in zip(stations[1:-1],stations[2:]):
   y,w,bot,top=a; yy,ww,bb,tt=b
   v=[(sign*(w+.12),y,bot+7),(sign*(ww+.12),yy,bb+7),(sign*(ww+.12),yy,bb+8.25),(sign*(w+.12),y,bot+8.25),(sign*(w-.4),y,bot+7),(sign*(ww-.4),yy,bb+7),(sign*(ww-.4),yy,bb+8.25),(sign*(w-.4),y,bot+8.25)]
   H.add(v,[(0,1,2,3),(4,7,6,5),(0,4,5,1),(3,2,6,7),(0,3,7,4),(1,5,6,2)],2,.12)
 # Inset bow observation/sensor spine, framed and barred.
 H.box((0,-208,1.2),(3.1,.9,13),2,.2)
 for z in range(-4,8):H.box((0,-208.6,z),(2.6,.28,.22),1,.05)
 for s in [-1,1]:H.box((s*1.7,-208.8,1.2),(.35,.65,13.7),1,.08)
 # upper deck inset: longitudinal loft rather than a slab
 H.loft([(17.3,20,107,-40,5),(18.2,20,107,-40,5)],4,.18)
 H.loft([(17,23.5,62,105,6),(18.4,22,61,105,5)],4,.18)
 # raised forecastle and citadel continuous battered walls
 H.loft([(17,22,48,10,6),(26,19,43,12,5),(28,17.8,40,14,4)],0,.55)
 H.loft([(27.5,16,29,14,4),(39,12.5,22,19,3)],0,.45)
 # angled bridge: overlapping armored brow, dark continuous glazing, roof and wings
 H.loft([(38.4,13.3,17,18,2.8),(42.6,14.7,18,18,2.8)],2,.25)
 H.loft([(40,13.4,16.9,17.6,2.7),(44.5,14.0,17.4,17.6,2.5)],5,.15)
 H.loft([(44.4,15.4,19,18,2.8),(46.1,15.2,18.7,18,2.5)],0,.27)
 for s in [-1,1]:
  for y in [5,12,19,26,33]:H.box((s*14.05,y,42.5),(.4,.45,4.5),1,.08)
  H.loft([(35,s*0+18,7,23,2),(37,17.7,7,23,2)],0,.25)
 # front bridge mullions & interior consoles glimpsed through glazing
 for x in [-10,-5,0,5,10]:H.box((x,.1,42.2),(.4,.7,4),1,.08)
 H.box((0,5,40),(20,3,1.5),2,.12)
 for x in [-8,-4,0,4,8]:H.box((x,3.35,40.9),(2,.2,.65),7,.04)
 H.loft([(46,7,8,24,2),(52,5.4,6,25,1.5)],0,.25)
 H.box((0,25,52.5),(12,10,1.2),1,.16)
 H.cyl((0,25,53),(0,25,62),.14,1,12)
 H.cyl((3,27,52.5),(3,27,58),.09,1,10)
 H.cyl((-4,26,52.5),(-4,26,56),.1,1,10)
 H.box((0,25,54),(8,.5,.45),2,.1)
 # Low aft machinery island and gun pedestal.
 H.loft([(17,23,34,116,5),(25,19,30,116,4)],0,.5)
 H.loft([(16,22,20,168,5),(27,18,16,171,4)],0,.4)
 for s in [-1,1]:
  # flank longitudinal recesses, framed machinery bays and discrete armor belt panels
  for y in [-85,-52,-19,14,47,80,113,146]:
   x=s*(27 if y<0 else 28)
   H.box((x,y,-3),(1.6,28,13.5),2,.25)
   H.box((x+s*.8,y,3.8),(.9,29,.8),1,.12)
   H.box((x+s*.8,y,-10),(.9,29,.8),1,.12)
   for yy in [y-14,y+14]:H.box((x+s*.9,yy,-3),(.8,.7,13),0,.16)
   for zz in [-7,-3,1]:
    H.cyl((x+s*1.4,y-11,zz),(x+s*1.4,y+11,zz),.26,1,10)
   for yy in [y-8,y+8]:H.box((x+s*1.45,yy,-3),(1.1,1.7,12),2,.13)
  for y in [-112,-78,-44,-10,24,58,92,126,157]:
   w=24 if y<-90 else (27 if y<130 else 24)
   # sloping upper shoulder panels
   ang=Matrix.Rotation(s*math.radians(31),3,'Y')
   H.box((s*(w-1),y,12.4),(5.6,30,.7),0,.17,ang)
   H.box((s*(w-1),y+13.2,12.9),(4.8,.45,.2),1,.04,ang)
  # human-scale inset lit porthole bands near citadel / aft quarters
  for y in list(range(-28,53,4))+list(range(103,150,4)):
   x=s*(20 if y<60 else 21)
   H.box((x,y,25 if y<60 else 22),(.45,2.05,.75),2,.08)
   H.box((x+s*.25,y,25 if y<60 else 22),(.12,1.45,.35),7,.025)
  # machinery modules and side docking airlocks between sponsons
  for y in [-7,75]:
   H.box((s*30,y,-1),(4,16,20),0,.55)
   H.box((s*32.12,y,-1),(.4,12.4,15.5),2,.2)
   H.box((s*32.4,y,-1),(.4,10.8,13.6),1,.2)
   H.box((s*32.65,y,-1),(.3,.22,12.4),2,.04)
   for yy in [-4,4]:
    for zz in [-5,3]:H.box((s*32.8,y+yy,zz),(.35,1.2,.45),2,.08)
  # cooling louvres on bridge sides
  for y in [-4,37]:
   H.box((s*17,y,30),(1,14,7),2,.15)
   for j in range(12):H.box((s*17.6,y-6+j*1.05,30),(.7,.25,6.3),1,.04)
  # deck handrails at service routes, broken only around weapons
  for a,b in [(-151,-118),(-16,37),(66,85),(139,165)]:
   rail(H,[(s*(15 if a<-100 else 22),y,18.5) for y in range(a,b+1,4)])
  # conduits, service hatches and compact deck fittings
  pipe(H,[(s*17,-125,18.5),(s*18,-85,18.5),(s*20,-76,18.5)],.3)
  pipe(H,[(s*24,56,19),(s*24,146,19),(s*19,158,22)],.34)
  for y in [-142,-126,-108,61,78,140,156]:
   H.box((s*13,y,18.7),(4,6,.55),2,.16); H.box((s*13,y,19.05),(3.6,5.5,.22),0,.1)
   bolts(H,(s*13,y),1.45,2.25,19.18)
  for y in [-172,-158]:
   H.cyl((s*7,y,16),(s*7,y,18.5),.4,1,12); H.box((s*7,y,18.6),(3,.8,.55),1,.1)
 # bottom keel spine + armored ventral plinth
 H.loft([(-24,16,76,25,4),(-21,20,82,25,5)],2,.4)
 H.loft([(-25,14,20,-29,3),(-21,17,23,-29,3)],0,.3)
 # main turrets: two forward superfiring, one stern, one ventral
 main=[((0,-105,18.5),0,False),((0,-53,28.2),0,False),((0,113,25.5),pi,False),((0,-29,-24.5),0,True)]
 gunid=0; muzzle=0
 def turret(pivot,yaw,size,barrels,under=False):
  nonlocal gunid,muzzle
  gunid+=1; idx=gunid; name=f'Turret_{idx}'; gn=f'Gun_{idx}'
  ro=(pi if under else 0,0,yaw)
  # stationary barbette ring attached to Hull; gun house itself independent.
  radius=8.8*size
  z=pivot[2]; direction=-1 if under else 1
  H.cyl((pivot[0],pivot[1],z-direction*.8),(pivot[0],pivot[1],z+direction*.35),radius*1.06,2,32)
  T=Part(name,pivot,'Hull',ro)
  T.cyl((0,0,-.2),(0,0,1.2*size),radius,1,32)
  T.loft([(1*size,9.4*size,10.8*size,1*size,2.2*size),(6.8*size,8.5*size,9.5*size,1.7*size,1.6*size),(8.1*size,7.8*size,8*size,2.2*size,1.3*size)],3,.28*size)
  T.box((0,5.5*size,8.2*size),(7*size,5*size,.5*size),1,.12*size)
  T.box((5.5*size,3*size,8.7*size),(3*size,3.3*size,1.1*size),3,.18*size)
  for side in [-1,1]:
   T.box((side*8.6*size,2*size,4.3*size),(.65*size,8*size,4*size),2,.16*size)
   for yy in [-.5,2,4.5]:T.box((side*8.99*size,yy*size,4.5*size),(.2*size,1.6*size,2.3*size),1,.05*size)
   T.cyl((side*8.1*size,-6*size,4*size),(side*8.1*size,-4.5*size,4*size),.8*size,1,16)
  G=Part(gn,(0,-7.4*size,4.6*size),name)
  G.cyl((-7.5*size,0,0),(7.5*size,0,0),1.9*size,2,20)
  for j in range(barrels):
   xx=(j-(barrels-1)/2)*4.7*size
   G.box((xx,-.5*size,0),(3.5*size,3.4*size,3.3*size),3,.36*size)
   # continuous stepped recoil sleeve and hollow muzzle, no end cap across bore
   G.tube((xx,0,0),[(0,1.45*size),(-4*size,1.45*size),(-5.5*size,1.14*size),(-8.5*size,1.14*size),(-9*size,.88*size),(-22*size,.68*size),(-23*size,.68*size),(-23*size,.48*size),(-20.3*size,.48*size),(-20.3*size,.55*size),(-1*size,.6*size)],1,24)
   for yy in [-3.8,-8.7]:G.tube((xx,yy*size,0),[(-.25*size,1.5*size),(.25*size,1.5*size),(.25*size,1.1*size),(-.25*size,1.1*size)],2,20)
   muzzle+=1; socket(f'Muzzle_{muzzle}',(xx,-23*size,0),gn)
  MOVING[name]={'axis':[0,-1 if under else 1,0],'role':'main turret' if barrels==3 else 'secondary turret'}
  MOVING[gn]={'axis':[1,0,0],'role':'gun elevation'}
 for pos,yaw,under in main:turret(pos,yaw,1 if not under else .84,3,under)
 for sign in [-1,1]:
  for y in [-67,32,124]:
   H.box((sign*27.5,y,1.1),(9,18,12),0,.6)
   turret((sign*29.2,y,7.1),sign*pi/2,.57,2)
 # missile cells in paired inclined racks; each has visible collar and launch hardpoint
 hard=0
 for sign in [-1,1]:
  for cy in [61,151]:
   H.box((sign*20,cy,20),(12,17,3),2,.35)
   for row in range(2):
    for col in range(4):
     x=sign*(16+col*2.65); y=cy-5+row*6
     H.cyl((x,y+3,21.1),(x,y-3,24.3),1.15,1,16)
     H.cyl((x,y-2.8,24.2),(x,y-3.25,24.45),1.29,2,16)
     H.cyl((x,y-3.26,24.45),(x,y-3.38,24.52),.89,3,16)
     hard+=1;socket(f'Hardpoint_{hard}',(x,y-3.4,24.55))
   for y in [cy-6,cy+6]:H.box((sign*20,y,21.3),(12.3,.65,2.8),0,.15)
 # engine mounting bulkhead and six nozzle pods, arranged in a hexagon
 H.loft([(-17,23,14,179,5),(17,23,14,179,5)],2,.7)
 positions=[(-12,11),(12,11),(-21,-3),(21,-3),(-12,-17),(12,-17)]
 for i,(x,z) in enumerate(positions,1):
  H.tube((x,178,z),[(0,6.3),(3,7.8),(13,7.8),(17,6.9),(28,7.2),(39,8),(46.5,7.8),(47,7.3),(46,6.2),(38,5.3),(35,4.6),(32,4.6),(32,5.1),(20,5.1),(0,5.9)],1,48)
  for yy in [183,190,201,214,222]:H.tube((x,yy,z),[(-.45,7.8),(.45,7.8),(.45,7.35),(-.45,7.35)],2,40)
  # heat shield petals, longitudinal nozzle ribs and fasteners
  for j in range(12):
   a=2*pi*j/12
   px=x+7.45*cos(a); pz=z+7.45*sin(a)
   H.cyl((px,196,pz),(px,222,pz),.24,2,8)
   H.cyl((x+7.7*cos(a),219,z+7.7*sin(a)),(x+7.7*cos(a),220,z+7.7*sin(a)),.26,1,8)
  H.cyl((x,211,z),(x,212,z),4.55,6,48)
  H.tube((x,214,z),[(0,5.3),(.5,5.3),(.5,4.8),(0,4.8)],6,48)
  H.cyl((x,212.1,z),(x,213,z),1.15,2,24)
  socket(f'Thruster_{i}',(x,225,z))
 # stern plumbing exposed between armored shoulders
 for s in [-1,1]:
  for z in [-8,0,8]:pipe(H,[(s*20,160,z),(s*24,172,z),(s*24,185,z)],.5)
 # Human-scale antennas, radomes and nav-light cages.
 for x,y,z in [(-11,41,40),(11,41,40),(-19,139,26),(19,139,26)]:
  H.cyl((x,y,z),(x,y,z+1.8),.8,2,16); H.cyl((x,y,z+1.8),(x,y,z+3.7),.6,1,16,r2=.15)
 for s in [-1,1]:
  H.box((s*33.6,32,8),(2.8,1.6,.5),2,.1)
  H.box((s*34.5,32,8.5),(.6,.8,.5),7,.09)
 socket('Light_Nav_L',(35,32,8.7),color=[1,0,0]); socket('Light_Nav_R',(-35,32,8.7),color=[0,1,0])
 socket('Light_Beacon',(0,25,53.5));socket('Camera_Chase',(0,310,95))
 # normalize exact mesh dimensions before creating pivoted objects; transforms remain untouched.
 # width is determined by broadside gun tips (~75 m): compress only lateral world geometry.
 for p in ASSEMBLIES.values():p.create()
 for name,pos,parent,rot,meta in SOCKETS:
  ob=bpy.data.objects.new(name,None);bpy.context.collection.objects.link(ob);ob.empty_display_size=1
  ob.parent=ASSEMBLIES[parent].ob;ob.location=pos;ob.rotation_euler=rot
  for k,v in meta.items():ob[k]=v
 bpy.context.view_layer.update()
 # Apply affine dimensions in WORLD then back into each mesh's local frame, preserving all pivots.
 objects=[p.ob for p in ASSEMBLIES.values()]
 pts=[o.matrix_world@Vector(c) for o in objects for c in o.bound_box]
 lo=Vector([min(p[i] for p in pts) for i in range(3)]); hi=Vector([max(p[i] for p in pts) for i in range(3)])
 factors=Vector((70/(hi.x-lo.x),450/(hi.y-lo.y),90/(hi.z-lo.z)))
 old={o.name:o.matrix_world.copy() for o in list(objects)+[bpy.data.objects[s[0]] for s in SOCKETS]}
 worldScale=Matrix.Diagonal((*factors,1))
 for o in objects:
  oldmat=old[o.name]; newloc=worldScale@oldmat.translation; rot=oldmat.to_quaternion().to_matrix().to_4x4(); rot.translation=newloc
  deform=rot.inverted()@worldScale@oldmat
  for v in o.data.vertices:v.co=deform@v.co
  o.matrix_world=rot
 bpy.context.view_layer.update()
 for name,*_ in SOCKETS:
  ob=bpy.data.objects[name]; w=old[name].copy();w.translation=worldScale@w.translation;ob.matrix_world=w
 bpy.context.view_layer.update()
 log('Geometry components '+str(len(H.f))+' static faces')


def setup_lighting():
 w=SC.world;w.use_nodes=True;n=w.node_tree.nodes;n.clear();L=w.node_tree.links.new
 tc=node(w.node_tree,'ShaderNodeTexCoord');sep=node(w.node_tree,'ShaderNodeSeparateXYZ');L(tc.outputs['Normal'],sep.inputs[0])
 ramp=node(w.node_tree,'ShaderNodeValToRGB');L(sep.outputs['Z'],ramp.inputs[0]);ramp.color_ramp.elements[0].color=(.004,.006,.012,1);ramp.color_ramp.elements[1].color=(.015,.027,.046,1)
 bg=node(w.node_tree,'ShaderNodeBackground');bg.inputs['Strength'].default_value=.36;L(ramp.outputs[0],bg.inputs[0]);out=node(w.node_tree,'ShaderNodeOutputWorld');L(bg.outputs[0],out.inputs[0])
 def sun(name,loc,energy,color,angle):
  d=bpy.data.lights.new(name,'SUN');d.energy=energy;d.color=color;d.angle=angle;o=bpy.data.objects.new(name,d);bpy.context.collection.objects.link(o);o.location=loc;o.rotation_euler=(-Vector(loc)).to_track_quat('-Z','Y').to_euler()
 sun('Key',(-150,-200,300),3.6,(1,.95,.88),.10)
 sun('CoolFill',(200,-70,90),1.25,(.64,.78,1),.28)
 sun('Rim',(10,200,140),2.8,(.65,.8,1),.14)
 sun('LowerBounce',(-50,-10,-180),.36,(.59,.7,1),.3)
 camd=bpy.data.cameras.new('RenderCamera');cam=bpy.data.objects.new('RenderCamera',camd);bpy.context.collection.objects.link(cam);SC.camera=cam
 camd.type='ORTHO';camd.clip_end=3000
 return cam

def camera_view(cam,mode='hero'):
 if mode=='side':cam.location=(600,0,20);target=Vector((0,0,12));cam.data.ortho_scale=490
 elif mode=='rear':cam.location=(340,540,230);target=Vector((0,55,8));cam.data.ortho_scale=440
 elif mode=='close':cam.location=(110,-122,90);target=Vector((0,-45,27));cam.data.ortho_scale=143
 else:cam.location=(360,-530,280);target=Vector((0,-12,6));cam.data.ortho_scale=475
 cam.rotation_euler=(target-cam.location).to_track_quat('-Z','Y').to_euler()

def render(path,w=1920,h=1080,samples=40):
 SC.render.resolution_x=w;SC.render.resolution_y=h;SC.cycles.samples=samples;SC.render.filepath=str(path);bpy.ops.render.render(write_still=True);log('Rendered '+str(path.name))

def patch_glb(path):
 data=path.read_bytes();jl=struct.unpack_from('<I',data,12)[0];doc=json.loads(data[20:20+jl]);blob=data[20+jl:]
 for m in doc.get('materials',[]):
  if m['name']=='Paint':m['pbrMetallicRoughness']['baseColorFactor']=[*PAINTS[0][1],1]
  if m['name']=='Glass':m['alphaMode']='BLEND';m['doubleSided']=True
 raw=json.dumps(doc,separators=(',',':')).encode();raw+=b' '*((-len(raw))%4)
 path.write_bytes(struct.pack('<4sII',b'glTF',2,20+len(raw)+len(blob))+struct.pack('<I4s',len(raw),b'JSON')+raw+blob)
 return doc

def export():
 bpy.ops.object.select_all(action='DESELECT')
 for o in SC.objects:
  if o.type in ['MESH','EMPTY']:o.select_set(True)
 path=ROOT/'heavy-cruiser-naval.glb'
 bpy.ops.export_scene.gltf(filepath=str(path),export_format='GLB',use_selection=True,export_yup=True,export_apply=False,export_image_format='JPEG',export_jpeg_quality=88,export_texcoords=True,export_normals=True,export_materials='EXPORT',export_cameras=False,export_lights=False,export_animations=False)
 doc=patch_glb(path)
 if path.stat().st_size>12*1024*1024:raise RuntimeError('GLB over budget: '+str(path.stat().st_size))
 log('GLB bytes '+str(path.stat().st_size))
 # Metadata is exported in glTF coordinates, matching the actual world placement.
 def cv(v):return [round(v[0],5),round(v[2],5),round(-v[1],5)]
 meshobs=[o for o in SC.objects if o.type=='MESH'];pts=[o.matrix_world@Vector(c) for o in meshobs for c in o.bound_box]
 pp=[cv(p) for p in pts];lo=[min(p[i] for p in pp) for i in range(3)];hi=[max(p[i] for p in pp) for i in range(3)]
 tris=sum(sum(len(p.vertices)-2 for p in o.data.polygons) for o in meshobs)
 nd={}
 for o in SC.objects:
  if o.type not in ['MESH','EMPTY']:continue
  nd[o.name]={'world_position':cv(o.matrix_world.translation),'parent':o.parent.name if o.parent else None,'type':'mesh' if o.type=='MESH' else 'socket'}
  if o.name in MOVING:nd[o.name].update(MOVING[o.name])
 meta={'asset':'heavy-cruiser-naval','units':'metres','coordinate_system':{'up':'+Y','nose':'+Z','left':'+X'},'bounding_box':{'min':lo,'max':hi,'size':[round(hi[i]-lo[i],4) for i in range(3)]},'triangles':tris,'materials':[m.name for m in MATS],'nodes':nd,'axes':{k:v['axis'] for k,v in MOVING.items()},'paints':[{'name':n,'linear_rgb':c} for n,c in PAINTS]}
 (ROOT/'nodes.json').write_text(json.dumps(meta,indent=2))
 (ROOT/'NOTES.md').write_text('\\n'.join([
 'Original 450 × 70 × 90 m naval space cruiser: four triple main turrets, six twin flank turrets, 32 missile cells, six engines; pivoted weapons and game sockets.',
 f'{tris:,} triangles; {len(meshobs)} mesh nodes; GLB {path.stat().st_size/1048576:.2f} MiB; Y up, +Z nose, +X port, metre units.',
 '8 materials: Paint, Metal, Dark, Weapons, Deck, Glass (BLEND), Engines, Lamps; neutral Paint bake with default linear factor [0.32, 0.34, 0.36].',
 'Cycles GPU tile bakes: Base/Normal 1024² and ORM 512² (Glass/Engines/Lamps 32²); shared world-scale UVs; JPEG embedded in GLB; no external runtime files.',
 'Poly Haven CC0 ids: metal_plate, rusty_metal_04; https://polyhaven.com/a/metal_plate ; https://polyhaven.com/a/rusty_metal_04 ; licence https://polyhaven.com/license .',
 'Reference differences: original faceted ram and bridge detailing, six hex-arranged nozzles; restrained patina for vacuum service, no markings; no interior beyond bridge console silhouettes.'
 ])+'\\n')
 assert 80000<=tris<=200000, ('Triangle budget',tris)
 return meta

def main():
 download()
 for name,kind in [('Paint','paint'),('Metal','metal'),('Dark','dark'),('Weapons','weapon'),('Deck','deck'),('Glass','glass'),('Engines','engine'),('Lamps','lamp')]:bake_material(name,kind)
 build_geometry();cam=setup_lighting();camera_view(cam)
 clay=bpy.data.materials.new('QA_Clay');clay.use_nodes=True;clay.node_tree.nodes.get('Principled BSDF').inputs['Base Color'].default_value=(.35,.35,.35,1);clay.node_tree.nodes.get('Principled BSDF').inputs['Roughness'].default_value=.7
 SC.view_layers[0].material_override=clay;render(ROOT/'clay.png',1920,1080,24);SC.view_layers[0].material_override=None
 meta=export()
 # Prove pivots: every turret +30 degrees traverse, every barrel +30 elevation.
 original={name:tuple(bpy.data.objects[name].rotation_euler) for name in MOVING}
 for name in MOVING:
  ob=bpy.data.objects[name];ob.rotation_euler[2 if name.startswith('Turret') else 0]+=math.radians(30)
 bpy.context.view_layer.update();render(QA/'motion-test.png',1280,720,20)
 for name,e in original.items():bpy.data.objects[name].rotation_euler=e
 bpy.context.view_layer.update();camera_view(cam);render(ROOT/'final.png')
 camera_view(cam,'side');render(ROOT/'side.png',1920,1080,28)
 camera_view(cam,'rear');render(QA/'rear.png',1280,720,24)
 camera_view(cam,'close');render(QA/'close.png',1280,720,24)
 camera_view(cam)
 tint=MATS[0].node_tree.nodes['FactionTint'];imgs=[]
 for i,(name,c) in enumerate(PAINTS):
  tint.inputs[2].default_value=(*c,1);p=QA/f'paint-{i}.png';render(p,640,360,16)
  im=bpy.data.images.load(str(p));arr=np.array(im.pixels[:],dtype=np.float32).reshape(360,640,4);imgs.append(arr)
 tint.inputs[2].default_value=(*PAINTS[0][1],1)
 grid=np.ones((720,1920,4),np.float32)
 for i,ar in enumerate(imgs):
  row=1-i//3;col=i%3;grid[row*360:(row+1)*360,col*640:(col+1)*640]=ar
 im=bpy.data.images.new('SixPaints',width=1920,height=720);im.pixels.foreach_set(grid.ravel());im.filepath_raw=str(ROOT/'paints.png');im.file_format='PNG';im.save()
 # Keep a source checkpoint remotely, while the self-contained script is the portable source of truth.
 bpy.ops.wm.save_as_mainfile(filepath=str(QA/'cruiser.blend'))
 (QA/'build-report.json').write_text(json.dumps({'elapsed_seconds':time.time()-START,'device':SC.cycles.device,'triangles':meta['triangles'],'moving_nodes_tested':list(MOVING),'bake_engine':'Cycles','bake_samples':8,'source_ids':['metal_plate','rusty_metal_04']},indent=2))
 log('COMPLETE')
if __name__=='__main__':main()
PY
python3 -m py_compile build_heavy-cruiser-naval.py
scp build_heavy-cruiser-naval.py gex44:/root/fal-author/heavy-cruiser-naval-v1/
ssh gex44 '/root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py > /root/fal-author/heavy-cruiser-naval-v1/build.log 2>&1'" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
hook: PreToolUse
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exec
/bin/bash -lc "ssh gex44 'tail -18 /root/fal-author/heavy-cruiser-naval-v1/build.log'
date -u +%FT%TZ" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 406ms:
2026-10-16T19:35:30Z

hook: PreToolUse
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exec
/bin/bash -lc "ls /home/claude-agent/.agents/skills/blender-game-assets/scripts
sed -n '1,100p' /home/claude-agent/.agents/skills/blender-game-assets/scripts/audit_glb.py
forge-agent --help" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
__pycache__
audit_glb.py
erosion
"""Read-only audit of uncompressed GLB triangle meshes; requires numpy.

Report mode exits 0 even with findings. --strict exits 1 for findings.
Invalid or unsupported input exits 2. This is not a complete glTF validator.
"""
import argparse
import hashlib
import json
from pathlib import Path
import struct
import sys

import numpy as np


def audit(path):
    data = Path(path).read_bytes()
    if len(data) < 20 or struct.unpack_from('<4sII', data) != (b'glTF', 2, len(data)):
        raise ValueError('Invalid GLB v2 header/length')
    chunks = {}
    offset = 12
    while offset < len(data):
        if offset + 8 > len(data):
            raise ValueError('Truncated chunk header')
        length, kind = struct.unpack_from('<II', data, offset)
        offset += 8
        if length % 4 or offset + length > len(data) or kind in chunks:
            raise ValueError('Invalid, duplicate or truncated GLB chunk')
        chunks[kind] = data[offset:offset + length]
        offset += length
    g = json.loads(chunks[0x4E4F534A])
    binary = chunks.get(0x004E4942, b'')
    compressed = {'KHR_draco_mesh_compression', 'EXT_meshopt_compression'}
    if compressed.intersection(g.get('extensionsUsed', []) + g.get('extensionsRequired', [])):
        raise ValueError('Compressed geometry: audit the uncompressed export')
    buffers = g.get('buffers', [])
    if len(buffers) != 1 or 'uri' in buffers[0] or buffers[0]['byteLength'] > len(binary):
        raise ValueError('Expected one embedded geometry buffer')
    dtypes = {5120: 'i1', 5121: 'u1', 5122: '<i2', 5123: '<u2', 5125: '<u4', 5126: '<f4'}
    widths = {'SCALAR': 1, 'VEC2': 2, 'VEC3': 3, 'VEC4': 4}

    def accessor(index):
        q = g['accessors'][index]
        if 'sparse' in q or 'bufferView' not in q:
            raise ValueError('Sparse or implicit accessor unsupported')
        v = g['bufferViews'][q['bufferView']]
        if v.get('buffer', 0) != 0 or 'EXT_meshopt_compression' in v.get('extensions', {}):
            raise ValueError('Unsupported buffer view')
        dtype = np.dtype(dtypes[q['componentType']])
        width = widths[q['type']]
        stride = v.get('byteStride', dtype.itemsize * width)
        count = q['count']
        start = q.get('byteOffset', 0)
        end = start + (count - 1) * stride + width * dtype.itemsize if count else start
        base = v.get('byteOffset', 0)
        if count < 0 or start < 0 or base < 0 or stride < dtype.itemsize * width or end > v['byteLength'] or base + v['byteLength'] > buffers[0]['byteLength']:
            raise ValueError('Accessor exceeds declared buffer bounds')
        return np.ndarray((count, width), dtype=dtype, buffer=binary,
                          offset=base + start, strides=(stride, dtype.itemsize))

    rows = []
    for mi, mesh in enumerate(g.get('meshes', [])):
        for pi, primitive in enumerate(mesh['primitives']):
            if primitive.get('mode', 4) != 4 or primitive.get('targets') or 'KHR_draco_mesh_compression' in primitive.get('extensions', {}):
                raise ValueError('Only uncompressed TRIANGLES without morph targets supported')
            attrs = {name: accessor(i) for name, i in primitive['attributes'].items()}
            pos = attrs['POSITION']
            if pos.shape[1] != 3 or g['accessors'][primitive['attributes']['POSITION']].get('normalized'):
                raise ValueError('Expected non-normalized VEC3 positions')
            idx = np.arange(len(pos))
            if 'indices' in primitive:
                q = g['accessors'][primitive['indices']]
                if q['type'] != 'SCALAR' or q['componentType'] not in (5121, 5123, 5125):
                    raise ValueError('Invalid index accessor')
                idx = accessor(primitive['indices']).ravel()
            if len(idx) % 3 or (len(idx) and int(idx.max()) >= len(pos)):
                raise ValueError('Invalid triangle indices')
            t = pos[idx.reshape(-1, 3)].astype(np.float64)
            area2 = np.linalg.norm(np.cross(t[:, 1] - t[:, 0], t[:, 2] - t[:, 0]), axis=1)
            rows.append({'mesh': mesh.get('name', str(mi)), 'primitive': pi,
                         'triangles': len(idx) // 3,
                         'zero_area_triangles': int((area2 < 1e-12).sum()),
                         'nonfinite_attribute_components': sum(int((~np.isfinite(a)).sum()) for a in attrs.values())})
    if not rows:
        raise ValueError('No triangle primitives to audit')
    # Rig report and duplicate-primitive detection (2026-09-21, after the MengTo rejection gates):
    # duplicate = two primitives whose POSITION and index buffers hash identically (an action file
    # carrying a second render mesh); the rig report lists skins, joint names and their parents.
    seen, duplicates = {}, []
    for mi, mesh in enumerate(g.get('meshes', [])):
        for pi, primitive in enumerate(mesh['primitives']):
            key = hashlib.sha1(accessor(primitive['attributes']['POSITION']).tobytes()
                               + (accessor(primitive['indices']).tobytes() if 'indices' in primitive else b'')).hexdigest()
            here = f"{mesh.get('name', str(mi))}[{pi}]"
            if key in seen:
                duplicates.append({'primitive': here, 'same_as': seen[key]})
            else:
                seen[key] = here
    nodes = g.get('nodes', [])
    parent_of = {}
usage: forge-agent [-h] {run,gc} ...

positional arguments:
  {run,gc}
    run       spawn one worker on an isolated worktree
    gc        remove finished worker worktrees (branches kept) and stop dev
              servers left in them or in deleted folders

options:
  -h, --help  show this help message and exit

hook: PreToolUse
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exec
/bin/bash -lc "ssh gex44 'ls -lh /root/fal-author/heavy-cruiser-naval-v1/build.log; pgrep -af heavy-cruiser; nvidia-smi --query-compute-apps=pid,used_gpu_memory --format=csv,noheader'
forge-agent run --help" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 737ms:
-rw-r--r-- 1 root root 0 Oct 16 21:35 /root/fal-author/heavy-cruiser-naval-v1/build.log
4072726 bash -c /root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py > /root/fal-author/heavy-cruiser-naval-v1/build.log 2>&1
4072727 python3 /opt/gpu-gate/gpu_gate.py --name blender --need-mib 6000 --priority batch -- /root/blender-spike/blender-5.2.0-linux-x64/blender.real -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py
4074290 bash -c ls -lh /root/fal-author/heavy-cruiser-naval-v1/build.log; pgrep -af heavy-cruiser; nvidia-smi --query-compute-apps=pid,used_gpu_memory --format=csv,noheader
2225, 172 MiB
558160, 4142 MiB
3432349, 580 MiB
997757, 338 MiB
2585942, 828 MiB
4073111, 1412 MiB
usage: forge-agent run [-h] --harness
                       {codex,codex-cli,claude,gemini,deepseek,unreal,gemini-proxy}
                       --model MODEL --purpose PURPOSE [--repo REPO] --task
                       TASK [--effort EFFORT] [--timeout TIMEOUT]
                       [--quality-profile {visual}]
                       [--quality-packet QUALITY_PACKET] [--jail]
                       [--allow-net {none,all,allowlist}]
                       [--data-class {synthetic,internal}] [--ro RO]

options:
  -h, --help            show this help message and exit
  --harness {codex,codex-cli,claude,gemini,deepseek,unreal,gemini-proxy}
                        codex = Unreal Agent on the Codex subscription
                        (default since 2026-09-23; Codex CLI with --jail);
                        codex-cli = the Codex CLI itself
  --model MODEL
  --purpose PURPOSE
  --repo REPO           required for --harness codex/claude/gemini/deepseek;
                        unused (no worktree) for gemini-proxy
  --task TASK
  --effort EFFORT       Codex or DeepSeek (medium maps to high on DeepSeek)
  --timeout TIMEOUT
  --quality-profile {visual}
                        DeepSeek only: bounded visual quality instructions
  --quality-packet QUALITY_PACKET
                        DeepSeek visual only: local JSON task packet (max 32
                        KiB)
  --jail                run the worker (codex/claude only) inside jail.py
                        containment (default OFF; opt in explicitly)
  --allow-net {none,all,allowlist}
                        --jail only: worker network mode (default 'all' --
                        codex/claude both need real model-API egress;
                        'allowlist' routes through the tinyproxy sidecar)
  --data-class {synthetic,internal}
                        --jail only: task data class; 'internal' is required
                        to use --ro
  --ro RO               --jail only, requires --data-class internal: extra
                        host path to mount read-only inside the jail;
                        repeatable

hook: PreToolUse
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exec
/bin/bash -lc "ls /tmp | head -25
command -v chromium || command -v chromium-browser || true
node -e \"for (const p of ['three','playwright','puppeteer']) {try {console.log(p,require.resolve(p))}catch(e){}}\"
ssh gex44 'tail -12 /root/fal-author/heavy-cruiser-naval-v1/build.log'" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 602ms:
07e85d80-motion
2nSny6zQtr
IMPLEMENTATION.md
OMU_SAS-statuts-annexe.pdf
TS_wind.docx
agy-author
agy4-relay.log
alien-harvester-check
alien-harvester-probe.png
alien-harvester-review
angle1.jpeg
angle2.jpeg
angle3.jpeg
app.css.pre-inbox
app.css.pre-wire
app.js.pre-inbox
app.js.pre-lang
app.js.pre-wire
app.py.before-qonto
app.py.pre-en
app.py.pre-inbox
app.py.pre-lang
app.py.pre-notify
app.py.pre-wire
bake-run-home.log
/snap/bin/chromium

hook: PreToolUse
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exec
/bin/bash -lc "ssh gex44 'head -90 /opt/gpu-gate/gpu_gate.py'
ls -d /tmp/*/node_modules/three /tmp/*/node_modules/playwright 2>/dev/null | head -12" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 602ms:
"""Cross-process GPU gate for the gex44 inference box.

One RTX 4000 SFF Ada (20475 MiB) is shared by four tools that know nothing
about each other: Flux image generation behind a LiteLLM gateway we do not
patch, Hunyuan3D shells fired by hunyuan_job.sh, SkinTokens and headless
Blender builds started by blender_exec_server.py.  Two heavy jobs at once can
run the card out of memory, so every heavy job asks this module for a slot
before it touches the GPU.

Model: one small JSON file per running job inside a lock directory, plus an
flock on <lock_dir>/.lock that serialises the bookkeeping only.  The flock is
never held while a job waits, so a waiting job cannot stop another job from
taking a slot that is free.  A job may start when

  (a) live slots (pid still alive, stale ones reaped) are fewer than
      max_concurrent, and
  (b) nvidia-smi reports at least need_mib free, after subtracting the need of
      slots younger than GRACE_S: a job that just launched may not show up in
      nvidia-smi's used counter yet, so we reserve for it ourselves.

The VRAM half is best effort.  When nvidia-smi is missing or fails we log and
gate on slot count alone: a gate that refuses to start anything because a
probe broke would stall the whole build lane, which is worse than a rare OOM.

Batch heavy jobs (Blender biome, Hunyuan prop batch) also stand back 30 s from
any build slot created in the last minute, so interactive app builds go first.
"""

from __future__ import annotations

import argparse
import collections
import contextlib
import fcntl
import json
import logging
import os
import subprocess
import sys
import time
import uuid

LOG = logging.getLogger("gpu_gate")

DEFAULT_LOCK_DIR = "/var/lock/forge-gpu"
GRACE_S = 90.0        # a fresh job may not appear in nvidia-smi yet
BUILD_LEAD_S = 60.0   # a build slot this young makes batch jobs stand back
BATCH_PENALTY_S = 30.0
PRIORITIES = ("build", "batch")
EXIT_GATE_TIMEOUT = 75  # EX_TEMPFAIL: the caller may retry

Decision = collections.namedtuple("Decision", "path reason wait_s")


class GpuGateTimeout(RuntimeError):
    """Raised when no slot became available inside timeout_s."""


# --------------------------------------------------------------------------
# clock (indirection so tests can drive time)
# --------------------------------------------------------------------------

def _now() -> float:
    # One clock for both slot timestamps and the timeout: the gate lives for
    # minutes, so treating a wall clock jump as an edge case is fine, and a
    # single clock keeps the slot ages and the deadline comparable.
    return time.time()


def _sleep(seconds: float) -> None:
    time.sleep(seconds)


# --------------------------------------------------------------------------
# slot bookkeeping
# --------------------------------------------------------------------------

def _lock_file(lock_dir: str) -> str:
    return os.path.join(lock_dir, ".lock")


@contextlib.contextmanager
def _bookkeeping(lock_dir: str):
    """Hold the flock for slot reads and writes only, never while waiting."""
    os.makedirs(lock_dir, exist_ok=True)
    fd = os.open(_lock_file(lock_dir), os.O_CREAT | os.O_RDWR, 0o644)
    try:
        fcntl.flock(fd, fcntl.LOCK_EX)
        yield
    finally:
/tmp/07e85d80-motion/node_modules/playwright
/tmp/07e85d80-motion/node_modules/three
/tmp/alien-harvester-check/node_modules/playwright
/tmp/alien-harvester-check/node_modules/three
/tmp/corvette-runtime/node_modules/three
/tmp/dieselpunk-runtime/node_modules/playwright
/tmp/dieselpunk-runtime/node_modules/three
/tmp/h1-viewer/node_modules/playwright
/tmp/h1-viewer/node_modules/three
/tmp/heavy-bomber-runtime/node_modules/playwright
/tmp/heavy-bomber-runtime/node_modules/three
/tmp/light-cruiser-runtime/node_modules/three

codex
The build script is ready and queued on the shared GPU machine. It includes separate traverse and elevation pivots, hollow gun muzzles, framed machinery bays, railings, and recessed nozzles. While it waits, I’m preparing the export and browser checks.

hook: PreToolUse
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hook: PreToolUse
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exec
/bin/bash -lc "mkdir -p /tmp/heavy-cruiser-naval-check
ln -s /tmp/alien-harvester-check/node_modules /tmp/heavy-cruiser-naval-check/node_modules
cat > /tmp/heavy-cruiser-naval-check/validate.py <<'PY'
import json,struct,sys,io
from pathlib import Path
import numpy as np
from PIL import Image
p=Path(sys.argv[1]);b=p.read_bytes();jl=struct.unpack_from('<I',b,12)[0];g=json.loads(b[20:20+jl]);buf=b[28+jl:]
report={'bytes':len(b),'materials':len(g.get('materials',[])),'nodes':len(g.get('nodes',[])),'images':[],'problems':[]}
issues=report['problems']
for im in g['images']:
 v=g['bufferViews'][im['bufferView']];img=Image.open(io.BytesIO(buf[v.get('byteOffset',0):v.get('byteOffset',0)+v['byteLength']]))
 report['images'].append({'name':im.get('name'),'size':img.size,'bytes':v['byteLength']})
 if max(img.size)>1024:issues.append('Oversize texture '+str(im))
for m in g['materials']:
 if m['name']=='Paint':
  if m['pbrMetallicRoughness'].get('baseColorFactor')"'!=[.32,.34,.36,1]:issues.append('"'Paint factor')
  if 'baseColorTexture' not in m['pbrMetallicRoughness']:issues.append('Paint lost texture')
 if m['name']=='Glass' and m.get('alphaMode')"'!='"'BLEND':issues.append('Glass alpha')
 orm=m['pbrMetallicRoughness'].get('metallicRoughnessTexture')
 if orm:
  im=g['textures'][orm['index']]['source']
  if max(report['images'][im]['size'])>512:issues.append('ORM oversize '+m['name'])
names={n['name']:i for i,n in enumerate(g['nodes'])}
for n in ['Hull','Camera_Chase','Light_Nav_L','Light_Nav_R','Light_Beacon']+[f'Thruster_{i}' for i in range(1,7)]+[f'Muzzle_{i}' for i in range(1,25)]+[f'Hardpoint_{i}' for i in range(1,33)]:
 if n not in names:issues.append('Missing '+n)
parents={c:i for i,n in enumerate(g['nodes']) for c in n.get('children',[])}
for i in range(1,11):
 for kind in ['Turret','Gun']:
  n=g['nodes'][names[f'{kind}_{i}']]
  if 'mesh' not in n:issues.append('Moving mesh missing '+n['name'])
  if n.get('scale',[1,1,1])"'!=[1,1,1]:issues.append('"'Moving scale '+n['name'])
 if parents.get(names[f'Gun_{i}'])"'!=names[f'"'Turret_{i}']:issues.append('Gun parenting')
if len(b)>12*1024*1024:issues.append('File > 12 MiB')
if len(g['materials'])>9:issues.append('Material count')
if 'cameras' in g:issues.append('Cameras in export')
print(json.dumps(report,indent=2));sys.exit(bool(issues))
PY
cat > /tmp/heavy-cruiser-naval-check/index.html <<'HTML'
<html><head><style>body{margin:0;background:#03060b}canvas{display:block}</style><script type=\"importmap\">{\"imports\":{\"three\":\"/node_modules/three/build/three.module.js\",\"three/addons/\":\"/node_modules/three/examples/jsm/\"}}</script></head><body><script type=\"module\">
import * as T from 'three';import{GLTFLoader}from'three/addons/loaders/GLTFLoader.js';
const r=new T.WebGLRenderer({antialias:true,preserveDrawingBuffer:true});r.setSize(1600,900);r.setPixelRatio(1);r.outputColorSpace=T.SRGBColorSpace;r.toneMapping=T.ACESFilmicToneMapping;r.toneMappingExposure=1;document.body.appendChild(r.domElement);const s=new T.Scene();s.background=new T.Color(0x050912);const c=new T.PerspectiveCamera(34,1600/900,1,4000);c.position.set(370,260,530);c.lookAt(0,6,12);
function light(p,col,int){const l=new T.DirectionalLight(col,int);l.position.set(...p);s.add(l)}light([-150,300,200],0xfff3e4,3.6);light([200,90,70],0xa3c7ff,1.25);light([10,140,-200],0xa6ccff,2.8);s.add(new T.HemisphereLight(0x96b8db,0x2e3540,.8));
new GLTFLoader().load('/asset.glb',g=>{s.add(g.scene);g.scene.updateMatrixWorld(true);let tris=0,meshes=0;g.scene.traverse(o=>{if(o.isMesh){meshes++;tris+=(o.geometry.index?.count||o.geometry.attributes.position.count)/3}});const box=new T.Box3().setFromObject(g.scene);r.render(s,c);window.result={renderer:r.getContext().getParameter(r.getContext().RENDERER),triangles:tris,meshes,bounds:{min:box.min.toArray(),max:box.max.toArray()},calls:r.info.render.calls,errors:[]};window.ready=true;window.scene=s;window.camera=c;window.renderer=r;window.asset=g.scene},undefined,e=>{window.result={error:String(e)};window.ready=true});
</script></body></html>
HTML
cat > /tmp/heavy-cruiser-naval-check/capture.cjs <<'JS'
const {chromium}=require('playwright');(async()=>{const b=await chromium.launch({executablePath:'/snap/bin/chromium',headless:true,args:['--no-sandbox','--use-angle=swiftshader','--enable-unsafe-swiftshader']});const p=await b.newPage({viewport:{width:1600,height:900}});const errors=[];p.on('pageerror',e=>errors.push(String(e)));await p.goto('http://127.0.0.1:8839');await p.waitForFunction(()=>window.ready,{timeout:120000});await p.screenshot({path:process.argv[2]});console.log(JSON.stringify({...await p.evaluate(()=>window.result),errors},null,2));await b.close()})()
JS
ssh gex44 'tail -10 /root/fal-author/heavy-cruiser-naval-v1/build.log'" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 399ms:
21:36:20 | INFO: Primitives created: 3
21:36:20 | INFO: Extracting primitive: Gun_10
21:36:20 | INFO: Primitives created: 3
21:36:20 | INFO: Finished glTF 2.0 export in 0.7096641063690186 s

CRUISER 27.5 GLB bytes 10420992
00:31.869  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/motion-test.png'
CRUISER 30.9 Rendered motion-test.png
00:39.080  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/final.png'
CRUISER 38.1 Rendered final.png

hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
exec
/bin/bash -lc 'mkdir -p qa
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/{heavy-cruiser-naval.glb,clay.png,final.png,nodes.json,NOTES.md} .
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/qa/motion-test.png qa/
cat NOTES.md
python3 /home/claude-agent/.agents/skills/blender-game-assets/scripts/audit_glb.py "$PWD/heavy-cruiser-naval.glb" --strict > qa/audit.json
python3 /tmp/heavy-cruiser-naval-check/validate.py "$PWD/heavy-cruiser-naval.glb" > qa/contract.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 5800ms:
Original 450 × 70 × 90 m naval space cruiser: four triple main turrets, six twin flank turrets, 32 missile cells, six engines; pivoted weapons and game sockets.
169,824 triangles; 21 mesh nodes; GLB 9.94 MiB; Y up, +Z nose, +X port, metre units.
8 materials: Paint, Metal, Dark, Weapons, Deck, Glass (BLEND), Engines, Lamps; neutral Paint bake with default linear factor [0.32, 0.34, 0.36].
Cycles GPU tile bakes: Base/Normal 1024² and ORM 512² (Glass/Engines/Lamps 32²); shared world-scale UVs; JPEG embedded in GLB; no external runtime files.
Poly Haven CC0 ids: metal_plate, rusty_metal_04; https://polyhaven.com/a/metal_plate ; https://polyhaven.com/a/rusty_metal_04 ; licence https://polyhaven.com/license .
Reference differences: original faceted ram and bridge detailing, six hex-arranged nozzles; restrained patina for vacuum service, no markings; no interior beyond bridge console silhouettes.

 succeeded in 95022ms:
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
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hook: PreToolUse Completed
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hook: PreToolUse Completed
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exec
/bin/bash -lc 'tail -20 qa/audit.json
tail -10 qa/contract.json
ls -lh final.png' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
      "same_as": "Turret_1[0]"
    },
    {
      "primitive": "Turret_2[1]",
      "same_as": "Turret_1[1]"
    },
    {
      "primitive": "Turret_2[2]",
      "same_as": "Turret_1[2]"
    }
  ],
  "note": "Mesh-local counts, before node transforms/instances. Degenerate threshold: cross-product magnitude < 1e-12 in asset units squared. Not a source-topology or visual-quality verdict.",
  "triangles": 169824,
  "zero_area_triangles": 8,
  "nonfinite_attribute_components": 0,
  "findings": [
    "zero_area_triangles",
    "duplicate_primitives"
  ]
}
      "name": "Lamps_ORM",
      "size": [
        32,
        32
      ],
      "bytes": 823
    }
  ],
  "problems": []
}
-rw-r--r-- 1 claude-agent claude-agent 1.9M Oct 16 19:36 final.png

hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
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exec
/bin/bash -lc 'cp final.png qa/revision-1.png
cp build_heavy-cruiser-naval.py qa/revision-1.py
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/{side.png,paints.png} .
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/qa/{rear.png,close.png,build-report.json} qa/
ln -s /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/heavy-cruiser-naval.glb /tmp/heavy-cruiser-naval-check/asset.glb
python3 -m http.server 8839 --bind 127.0.0.1 --directory /tmp/heavy-cruiser-naval-check' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
hook: PreToolUse
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exec
/bin/bash -lc 'node /tmp/heavy-cruiser-naval-check/capture.cjs "$PWD/qa/runtime-r1.png" > qa/runtime-r1.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 exited 1 in 1660ms:
node:internal/process/promises:391
    triggerUncaughtException(err, true /* fromPromise */);
    ^

browserType.launch: Target page, context or browser has been closed
Browser logs:

<launching> /snap/bin/chromium --disable-field-trial-config --disable-background-networking --disable-background-timer-throttling --disable-backgrounding-occluded-windows --disable-back-forward-cache --disable-breakpad --disable-client-side-phishing-detection --disable-component-extensions-with-background-pages --disable-component-update --no-default-browser-check --disable-default-apps --disable-dev-shm-usage --disable-edgeupdater --disable-extensions --disable-features=AvoidUnnecessaryBeforeUnloadCheckSync,DestroyProfileOnBrowserClose,DialMediaRouteProvider,GlobalMediaControls,HttpsUpgrades,LensOverlay,MediaRouter,PaintHolding,ThirdPartyStoragePartitioning,BlockOriginHeaderModificationOnRedirect,AvoidCorsURLLoaderRestartOnRedirect,Translate,AutoDeElevate,OptimizationHints,NetworkTimeServiceQuerying,AimEnabled,msForceBrowserSignIn,msEdgeUpdateLaunchServicesPreferredVersion --enable-features=CDPScreenshotNewSurface --allow-pre-commit-input --disable-hang-monitor --disable-ipc-flooding-protection --disable-popup-blocking --disable-prompt-on-repost --disable-renderer-backgrounding --disable-updater-scheduler --force-color-profile=srgb --metrics-recording-only --no-first-run --password-store=basic --use-mock-keychain --no-service-autorun --export-tagged-pdf --disable-search-engine-choice-screen --unsafely-disable-devtools-self-xss-warnings --edge-skip-compat-layer-relaunch --disable-infobars --disable-search-engine-choice-screen --disable-sync --enable-unsafe-swiftshader --headless --hide-scrollbars --mute-audio --blink-settings=primaryHoverType=2,availableHoverTypes=2,primaryPointerType=4,availablePointerTypes=4 --no-sandbox --no-sandbox --use-angle=swiftshader --enable-unsafe-swiftshader --user-data-dir=/tmp/playwright_chromiumdev_profile-snumkp --remote-debugging-pipe --no-startup-window
<launched> pid=605859
[pid=605859][err] 2026/10/16 19:37:25.403865 cmd_run.go:1607: WARNING: cannot start document portal: dial unix /run/user/0/bus: connect: permission denied
[pid=605859][err] /user.slice/user-0.slice/session-36601.scope is not a snap cgroup for tag snap.chromium.chromium
Call log:
  - <launching> /snap/bin/chromium --disable-field-trial-config --disable-background-networking --disable-background-timer-throttling --disable-backgrounding-occluded-windows --disable-back-forward-cache --disable-breakpad --disable-client-side-phishing-detection --disable-component-extensions-with-background-pages --disable-component-update --no-default-browser-check --disable-default-apps --disable-dev-shm-usage --disable-edgeupdater --disable-extensions --disable-features=AvoidUnnecessaryBeforeUnloadCheckSync,DestroyProfileOnBrowserClose,DialMediaRouteProvider,GlobalMediaControls,HttpsUpgrades,LensOverlay,MediaRouter,PaintHolding,ThirdPartyStoragePartitioning,BlockOriginHeaderModificationOnRedirect,AvoidCorsURLLoaderRestartOnRedirect,Translate,AutoDeElevate,OptimizationHints,NetworkTimeServiceQuerying,AimEnabled,msForceBrowserSignIn,msEdgeUpdateLaunchServicesPreferredVersion --enable-features=CDPScreenshotNewSurface --allow-pre-commit-input --disable-hang-monitor --disable-ipc-flooding-protection --disable-popup-blocking --disable-prompt-on-repost --disable-renderer-backgrounding --disable-updater-scheduler --force-color-profile=srgb --metrics-recording-only --no-first-run --password-store=basic --use-mock-keychain --no-service-autorun --export-tagged-pdf --disable-search-engine-choice-screen --unsafely-disable-devtools-self-xss-warnings --edge-skip-compat-layer-relaunch --disable-infobars --disable-search-engine-choice-screen --disable-sync --enable-unsafe-swiftshader --headless --hide-scrollbars --mute-audio --blink-settings=primaryHoverType=2,availableHoverTypes=2,primaryPointerType=4,availablePointerTypes=4 --no-sandbox --no-sandbox --use-angle=swiftshader --enable-unsafe-swiftshader --user-data-dir=/tmp/playwright_chromiumdev_profile-snumkp --remote-debugging-pipe --no-startup-window
  - <launched> pid=605859
  - [pid=605859][err] 2026/10/16 19:37:25.403865 cmd_run.go:1607: WARNING: cannot start document portal: dial unix /run/user/0/bus: connect: permission denied
  - [pid=605859][err] /user.slice/user-0.slice/session-36601.scope is not a snap cgroup for tag snap.chromium.chromium
  - [pid=605859] <gracefully close start>
  - [pid=605859] <kill>
  - [pid=605859] <will force kill>
  - [pid=605859] exception while trying to kill process: Error: kill ESRCH
  - [pid=605859] <process did exit: exitCode=1, signal=null>
  - [pid=605859] starting temporary directories cleanup
  - [pid=605859] finished temporary directories cleanup
  - [pid=605859] <gracefully close end>

    at /tmp/heavy-cruiser-naval-check/capture.cjs:1:74
    at Object.<anonymous> (/tmp/heavy-cruiser-naval-check/capture.cjs:1:573) {
  log: [
    '  - <launching> /snap/bin/chromium --disable-field-trial-config --disable-background-networking --disable-background-timer-throttling --disable-backgrounding-occluded-windows --disable-back-forward-cache --disable-breakpad --disable-client-side-phishing-detection --disable-component-extensions-with-background-pages --disable-component-update --no-default-browser-check --disable-default-apps --disable-dev-shm-usage --disable-edgeupdater --disable-extensions --disable-features=AvoidUnnecessaryBeforeUnloadCheckSync,DestroyProfileOnBrowserClose,DialMediaRouteProvider,GlobalMediaControls,HttpsUpgrades,LensOverlay,MediaRouter,PaintHolding,ThirdPartyStoragePartitioning,BlockOriginHeaderModificationOnRedirect,AvoidCorsURLLoaderRestartOnRedirect,Translate,AutoDeElevate,OptimizationHints,NetworkTimeServiceQuerying,AimEnabled,msForceBrowserSignIn,msEdgeUpdateLaunchServicesPreferredVersion --enable-features=CDPScreenshotNewSurface --allow-pre-commit-input --disable-hang-monitor --disable-ipc-flooding-protection --disable-popup-blocking --disable-prompt-on-repost --disable-renderer-backgrounding --disable-updater-scheduler --force-color-profile=srgb --metrics-recording-only --no-first-run --password-store=basic --use-mock-keychain --no-service-autorun --export-tagged-pdf --disable-search-engine-choice-screen --unsafely-disable-devtools-self-xss-warnings --edge-skip-compat-layer-relaunch --disable-infobars --disable-search-engine-choice-screen --disable-sync --enable-unsafe-swiftshader --headless --hide-scrollbars --mute-audio --blink-settings=primaryHoverType=2,availableHoverTypes=2,primaryPointerType=4,availablePointerTypes=4 --no-sandbox --no-sandbox --use-angle=swiftshader --enable-unsafe-swiftshader --user-data-dir=/tmp/playwright_chromiumdev_profile-snumkp --remote-debugging-pipe --no-startup-window',
    '  - <launched> pid=605859',
    '  - [pid=605859][err] 2026/10/16 19:37:25.403865 cmd_run.go:1607: WARNING: cannot start document portal: dial unix /run/user/0/bus: connect: permission denied',
    '  - [pid=605859][err] /user.slice/user-0.slice/session-36601.scope is not a snap cgroup for tag snap.chromium.chromium',
    '  - [pid=605859] <gracefully close start>',
    '  - [pid=605859] <kill>',
    '  - [pid=605859] <will force kill>',
    '  - [pid=605859] exception while trying to kill process: Error: kill ESRCH',
    '  - [pid=605859] <process did exit: exitCode=1, signal=null>',
    '  - [pid=605859] starting temporary directories cleanup',
    '  - [pid=605859] finished temporary directories cleanup',
    '  - [pid=605859] <gracefully close end>'
  ]
}

Node.js v20.20.2

codex
The first GLB is complete at 169,824 triangles and 9.94 MiB. The renders show two weaknesses: the broadside gun pose makes the hull read too narrow, and the bow and armour surfaces look too plain. I’m correcting those and removing eight degenerate triangles found by the export audit.

hook: PreToolUse
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exec
/bin/bash -lc "gemini --help | head -45
cat qa/runtime-r1.json
python3 - <<'PY'
import json
j=json.load(open('qa/audit.json'))
for k,v in j.items():
 if isinstance(v,list):
  for i in v:
   if isinstance(i,dict) and i.get('zero_area_triangles',0):print(k,i)
PY" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 5012ms:
Usage of agy:
  --add-dir                       Add a directory to the workspace (repeatable) (default [])
  --agent                         Agent for the current CLI session
  -c                              Short alias for --continue
  --continue                      Continue the most recent conversation
  --conversation                  Resume a previous conversation by ID
  --dangerously-skip-permissions  Auto-approve all tool permission requests without prompting
  --disable-slash-commands        Disable slash command and skill expansion in print mode
  --effort                        Reasoning effort for the current CLI session (low|medium|high|xhigh|max)
  -i                              Short alias for --prompt-interactive
  --input-format                  Input format for print mode (text, stream-json). stream-json reads one NDJSON message per line from stdin and runs a turn for each; it requires --output-format stream-json (default text)
  --json-schema                   Optional JSON schema string or path to a schema file to enforce structured output (for stream-json, only applicable to the final result)
  --log-file                      Override CLI log file path
  --mode                          Set the agent execution mode for this session (accept-edits, auto, plan)
  --model                         Model for the current CLI session
  --new-project                   Create a new project for this session
  --output-format                 Output format for print mode (text, json, stream-json) (default text)
  -p                              Short alias for --print
  --print                         Run a single prompt non-interactively and print the response
  --print-timeout                 Optional time limit for print mode; 0 waits until the turn completes (default 0s)
  --project                       Project ID or project name for the current CLI session
  --prompt                        Alias for --print
  --prompt-interactive            Run an initial prompt interactively and continue the session
  --remote-control                Create a remote connection for the CLI session on start up
  --sandbox                       Run in a sandbox with terminal restrictions enabled

Available subcommands:
  agent           List available agents
  agents          List available agents
  changelog       Show changelog and release notes
  help            Show help for subcommands
  install         Configure environment paths and shell settings
  mcp             Manage MCP servers (add, remove, list, enable, disable)
  mic-serve       Serve this machine's microphone to a CLI on another host
  models          List available models
  plugin          Manage plugins (install, uninstall, list, enable, disable)
  plugins         Alias for plugin
  remote-control  Manage the remote-control background daemon (start, status, stop)
  update          Update CLI
primitives {'mesh': 'Hull', 'primitive': 0, 'triangles': 12780, 'zero_area_triangles': 8, 'nonfinite_attribute_components': 0}

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hook: PreToolUse Completed
exec
/bin/bash -lc "gemini -p 'Act as a read-only visual critic under the blender-game-assets critic-loop instructions. Do not edit files or start Blender. Open and visually inspect these real image files using image-capable tools: /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg (target), /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/revision-1.png (first actual render), /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png and qa/rear.png. Goal: realistic modern-game 450m naval space cruiser, original silhouette, exact named parts; not toy-like or flat colours. Current metrics 169824 triangles 9.94MiB 8 materials; 1K tiled bakes. Author is already widening the hull by changing the broadside turret default pose to fore/aft, improving flared ram bow, adding panel relief and eliminating 8 degenerate triangles. Return at most five highest-impact visible findings with IDs, evidence, concrete corrections, measurable acceptance, and PASS/REVISE. If unable to actually see images, state BLOCKED, never infer an image verdict from text. Spend at most 4 minutes. No delegation.' --model forge:build-gemini-4 --effort high --print-timeout 240s > /tmp/heavy-cruiser-naval-check/critic-r1.txt 2>&1" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
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exec
/bin/bash -lc 'scp gex44:/root/fal-author/heavy-cruiser-naval-v1/textures/Paint_Base.png /tmp/heavy-cruiser-naval-check/Paint_Base.png
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/textures/metal_plate_diff_1k.jpg /tmp/heavy-cruiser-naval-check/metal.jpg
cat qa/runtime-r1.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 2252ms:
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
exec
/bin/bash -lc "python3 - <<'PY'
p='build_heavy-cruiser-naval.py'
s=open(p).read()
s=s.replace(\"sc.view_settings.exposure=.35\",\"sc.view_settings.exposure=.10\")
s=s.replace(\"normalize=mathn('MULTIPLY_ADD',bw.outputs[0],.32); normalize.node.inputs[2].default_value=.65\",\"normalize=mathn('MULTIPLY_ADD',bw.outputs[0],.62); normalize.node.inputs[2].default_value=.46\")
s=s.replace(\"brick.inputs['Mortar Size'].default_value=.0035\",\"brick.inputs['Mortar Size'].default_value=.0017\")
s=s.replace(\"brick.inputs['Color1'].default_value=(.9,.9,.9,1)\",\"brick.inputs['Color1'].default_value=(.72,.72,.72,1)\")
s=s.replace(\"rough=.52; metal=.48\",\"rough=.43; metal=.58\")
s=s.replace(\"base=mix(base,grimecol.outputs[0],.22,'MULTIPLY')\",\"base=mix(base,grimecol.outputs[0],.52,'MULTIPLY')\")
s=s.replace(\"if kind not in ['paint','deck']:base=mix(base,rust.outputs['Color'],.035)\",\"\"\"if kind not in ['paint','deck']:base=mix(base,rust.outputs['Color'],.075)
  # Neutral weathering from the second CC0 scan: broad oxidation, impact specks and polish.
  if kind=='paint':
   rustbw=node(nt,'ShaderNodeRGBToBW');L(rust.outputs[0],rustbw.inputs[0])
   wear=node(nt,'ShaderNodeValToRGB');L(rustbw.outputs[0],wear.inputs[0])
   wear.color_ramp.elements[0].position=.10;wear.color_ramp.elements[0].color=(.29,.29,.29,1)
   wear.color_ramp.elements[1].position=.6;wear.color_ramp.elements[1].color=(1,1,1,1)
   base=mix(base,wear.outputs[0],.24,'MULTIPLY')\"\"\")
s=s.replace(\"for p,mi,sm in zip(mesh.polygons,self.mi,self.sm):p.material_index=mi;p.use_smooth=sm\",\"\"\"for p,mi,sm in zip(mesh.polygons,self.mi,self.sm):p.material_index=mi;p.use_smooth=sm
  bm=bmesh.new();bm.from_mesh(mesh);bmesh.ops.triangulate(bm,faces=list(bm.faces))
  dead=[f for f in bm.faces if f.calc_area()<1e-9]
  if dead:bmesh.ops.delete(bm,geom=dead,context='FACES')
  bm.to_mesh(mesh);bm.free();mesh.update()\"\"\")
s=s.replace(\"stations=[(-225,1.1,-19,7),(-207,7,-21,14)\",\"stations=[(-225,4.4,-19,13),(-207,8,-21,15)\")
s=s.replace(\"def cross(y,w,bot,top):return [(0,y,top),(w*.77,y,top),(w,y,top-7),(w,y,bot+11),(w*.72,y,bot),(0,y,bot),(-w*.72,y,bot),(-w,y,bot+11),(-w,y,top-7),(-w*.77,y,top)]\", \"\"\"def cross(y,w,bot,top):
  rake=max(0,(-y-190)/35)
  return [(0,y+18*rake,top),(w*.77,y+18*rake,top),(w,y+14*rake,top-7),(w,y+8*rake,bot+11),(w*.72,y+8*rake,bot),(0,y+8*rake,bot),(-w*.72,y+8*rake,bot),(-w,y+8*rake,bot+11),(-w,y+14*rake,top-7),(-w*.77,y+18*rake,top)]\"\"\")
s=s.replace(\"[(1,-225,-19),(5,-210,11),(13,-178,15),(23,-130,15),(26,-82,10),(26,-82,-16),(18,-135,-20),(8,-188,-21),(2.5,-219,-20),(6,-207,-8),(17,-167,3),(24,-117,4)]\", \"[(4.0,-225,-21),(6,-206,14),(15.5,-174,15.8),(24.5,-129,15),(28,-82,10),(28,-82,-15),(21,-135,-20),(10,-189,-22),(5.3,-220,-22),(8,-207,-7),(19,-167,3),(27,-117,4)]\")
s=s.replace(\"H.box((0,-208,1.2),(3.1,.9,13),2,.2)\",\"H.box((0,-211,0),(6.9,1.3,22),2,.2)\")
s=s.replace(\"for z in range(-4,8):H.box((0,-208.6,z),(2.6,.28,.22),1,.05)\",\"for z in range(-9,11):H.box((0,-211.8,z),(6.7,.35,.25),1,.05)\")
s=s.replace(\"H.box((s*1.7,-208.8,1.2),(.35,.65,13.7),1,.08)\",\"H.box((s*3.6,-211.9,0),(.45,.65,22.8),1,.08)\")
s=s.replace(\"turret((sign*29.2,y,7.1),sign*pi/2,.57,2)\",\"turret((sign*29.2,y,7.1),0 if y<100 else pi,.67,2)\")
s=s.replace(\"sun('Key',(-150,-200,300),3.6\",\"sun('Key',(-150,-200,300),2.8\")
s=s.replace(\"sun('CoolFill',(200,-70,90),1.25\",\"sun('CoolFill',(200,-70,90),.85\")
s=s.replace(\"sun('Rim',(10,200,140),2.8\",\"sun('Rim',(10,200,140),2.0\")
s=s.replace(\"else:cam.location=(360,-530,280);target=Vector((0,-12,6));cam.data.ortho_scale=475\",\"else:cam.location=(370,-490,245);target=Vector((0,-10,6));cam.data.ortho_scale=455\")
# geometry refinement before finalization
anchor=\" # normalize exact mesh dimensions before creating pivoted objects; transforms remain untouched.\"
addition=''' # Layered armor plating, broad shallow recesses and service trunks interrupt large blank masses.
 for sign in [-1,1]:
  # Forebody panel courses trace the actual flared sheer. Thickness is visible at every seam.
  for j,(y,w,z) in enumerate([(-192,11,-1),(-170,16.8,-1),(-147,21.4,-1),(-122,25,-1),(-96,27.7,-1)]):
   angle=Matrix.Rotation(-sign*math.radians(10 if j<3 else 3),3,'Z')
   H.box((sign*w,y,z),(.55,20,13.5),0,.15,angle)
   H.box((sign*(w+.32),y-6,z+4),(.3,3.5,.35),1,.06,angle)
   H.box((sign*(w+.33),y+6,z-4),(.3,2,.4),2,.06,angle)
  # Upper shoulder access-panel strips and armored brow with narrow steel exposed edges.
  for y in [-86,-52,-18,16,50,84,118,150]:
   for row in [-1,1]:
    x=sign*(23.2+row*.9)
    H.box((x,y,17.5),(1.3,20,.25),1,.07)
  # Angled citadel reinforcement ribs: larger structural rhythm than the tiled seams.
  for y in [-21,-7,7,21,35,48]:
   H.box((sign*19.2,y,23),(.7,.8,7),1,.11,Matrix.Rotation(-sign*.23,3,'Y'))
  for y in [94,107,120,133]:
   H.box((sign*20.5,y,21.4),(.65,.8,6.4),1,.1,Matrix.Rotation(-sign*.35,3,'Y'))
  # Stern heat-exchanger banks: real inset beds, louvers, braced pipework.
  H.box((sign*10,171,27.3),(12,24,.7),2,.2)
  for k in range(15):H.box((sign*10,160+k*1.5,27.8),(10.5,.45,.8),1,.09)
  H.box((sign*20.4,173,20),(.6,21,9),2,.18)
  for k in range(12):H.box((sign*20.8,164+k*1.5,20),(.4,.4,7.6),1,.07)
  # Paired auxiliary sensor/funnel housings behind the bridge, adding a stepped aft silhouette.
  H.loft([(28,4.4,9,44,1.2),(33.5,3.4,7,45,1),(35,3.2,6.6,45,1)],2,.22)
  pipe(H,[(sign*13.5,38,36),(sign*13.5,44,36),(sign*13.5,44,32)],.4)
  # low catwalk shields, recessed side strip; no spurious text or faction marks
  for a,b in [(-151,-120),(-13,34),(68,85),(141,164)]:
   H.box((sign*(15.6 if a<-100 else 22.7),(a+b)/2,18.8),(.3,b-a,.6),2,.08)
 # Bridge roof equipment and a proper open mast with stays.
 H.box((0,14,46.5),(15,7,.45),2,.14)
 for x in [-5,0,5]:H.box((x,14,46.8),(3.2,5.8,.35),1,.1)
 for sign in [-1,1]:
  pipe(H,[(sign*2.6,25,53),(0,25,59)],.09)
  H.cyl((sign*9,23,46),(sign*9,23,48.2),1.2,2,20)
  H.cyl((sign*9,23,48.2),(sign*9,23,49.7),1.2,1,20,r2=.3)
 # Recessed forward armor apron and maintenance access on the bridge face.
 H.box((0,-4.0,33),(9,.4,4),2,.15)
 for x in [-3.4,-1.7,0,1.7,3.4]:H.box((x,-4.28,33),(.7,.25,3),1,.07)
'''
s=s.replace(anchor,addition+anchor)
# Deduplicate only truly identical complete meshes; retain every moving node and pivot.
s=s.replace(\"log('Geometry components '+str(len(H.f))+' static faces')\",\"\"\"cache={}
 for o in objects:
  signature=(tuple(tuple(round(c,5) for c in v.co) for v in o.data.vertices),tuple((tuple(p.vertices),p.material_index) for p in o.data.polygons))
  if signature in cache:o.data=cache[signature]
  else:cache[signature]=o.data
 log('Geometry components '+str(len(H.f))+' static faces')\"\"\")
# duplicate funnel double geometry loop must be offset x; loft helper centered so replace one central piece only
s=s.replace(\"  H.loft([(28,4.4,9,44,1.2),(33.5,3.4,7,45,1),(35,3.2,6.6,45,1)],2,.22)\",\"  if sign==1:H.loft([(28,4.4,9,44,1.2),(33.5,3.4,7,45,1),(35,3.2,6.6,45,1)],2,.22)\")
open(p,'w').write(s)
PY
python3 -m py_compile build_heavy-cruiser-naval.py
scp build_heavy-cruiser-naval.py gex44:/root/fal-author/heavy-cruiser-naval-v1/
ssh gex44 '/root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py > /root/fal-author/heavy-cruiser-naval-v1/build.log 2>&1'" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
exec
/bin/bash -lc "cat /tmp/heavy-cruiser-naval-check/critic-r1.txt
tail -10 qa/runtime-r1.json
ssh gex44 'tail -12 /root/fal-author/heavy-cruiser-naval-v1/build.log'
date -u +%FT%TZ" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 526ms:
**Verdict: REVISE**

Visually inspected all four image files directly (`sheet.jpg`, `qa/revision-1.png`, `qa/close.png`, `qa/rear.png`). While the overall length-to-beam ratio, 6-nozzle stern layout, and triple-gun main turret count are established, the asset currently reads as a smooth-shaded blockout with floating geometry and flat plastic shading rather than the heavy, faceted naval warship in `sheet.jpg`.

### Top 5 Highest-Impact Visual Findings

| ID | Area | Severity | Summary |
| :--- | :--- | :--- | :--- |
| **F1** | Forward Superfiring Turret (#2) | Blocker | Upper forward main turret is floating in mid-air above the deck (`close.png`, `rear.png`). |
| **F2** | Hull Cross-Section, Sponsons & Ventral Hull | High | Vertical slab sides, flat belly, and thin side plates instead of flared armor belt, deep sponsons, and ventral turrets (`revision-1.png`, `rear.png`). |
| **F3** | Superstructure, Bridge Glacis & Aft Block | High | Pillowy beveled citadel slope, bare monopoly-block aft housing, and tiny diagonal stick racks instead of armored pods (`close.png`, `rear.png`). |
| **F4** | Engine Cluster Shrouds & Glow | High | Bare cylindrical pipes sticking out of a flat backplate with dim blue discs and no heat-scorch or nozzle petals (`rear.png`). |
| **F5** | Material Separation & Surface Scale | High | Uniform light-grey clay look with repetitive square grid lines (`close.png`) and missing palette contrast (`HULL PAINT`, `BARE METAL`, `HEAT-SCORCHED METAL`). |

---

#### F1: Superfiring Forward Main Turret (#2) Floating in Mid-Air
* **Evidence:** In [close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png) and [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png), the second (elevated) forward triple turret hovers several meters above the forward deck with a large open air gap and cast shadow beneath its base ring. In [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg), this turret rests solidly on a stepped forward deckhouse and armored barbette integrated into the citadel front.
* **Concrete Correction:** Extend the stepped forward superstructure deckhouse forward under Turret #2 and add a full-depth cylindrical armored barbette collar that intersects cleanly into the deckhouse roof with zero gap.
* **Measurable Acceptance:** In `close.png` and side/3-4 renders, 100% of the Turret #2 base ring and barbette is seated inside solid superstructure geometry with zero visible air gap or floating shadow under the turret base.

#### F2: Flat-Sided "Barge" Hull Cross-Section, Flat Sponson Plates & Missing Ventral Turrets
* **Evidence:** In [revision-1.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/revision-1.png) and [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png), the hull sides are vertical flat walls with thin rectangular slabs pasted on the sides for the broadside turrets, and the lower hull is a flat bottom. In [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg) (front, rear, and side views), the hull has a multi-faceted hexagonal armor belt that flares outward at mid-deck, heavy 3D trapezoidal sponsons projecting outboard to carry the twin secondary turrets, and two ventral twin-gun turrets on stepped belly housings underneath the hull.
* **Concrete Correction:** Beyond rotating the broadside barrels fore/aft and flaring the bow ram, add the full-length bevelled mid-hull armor belt chine, build deep 3D outboard sponson housings (protruding at least 15% of hull beam per side) under the broadside turrets, and add the stepped ventral keel and two ventral twin-barrel turrets visible in the target sheet.
* **Measurable Acceptance:** Front/3-4 silhouette shows the faceted mid-hull flare, projecting 3D side sponsons with fore/aft twin barrels, and two ventral turrets below the keel baseline matching `sheet.jpg`.

#### F3: Smooth-Beveled Citadel Slope, Featureless Aft Block & Wrong Missile Battery Form
* **Evidence:**
  1. In [close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png), the forward bridge citadel is a smooth light-grey ramp with soft, pillowy shading on its bevels and a tiny wireframe mast.
  2. In [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png), the aftmost superstructure block behind the rear main turret is a completely blank, untextured light-grey box.
  3. In [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png), the missile batteries are small angled rail sticks on the deck rather than the heavy horizontal cylindrical-pod boxes mounted on the upper superstructure flanks in [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg).
* **Concrete Correction:** Convert the citadel and aft superstructure to crisp hard-edged/weighted-normal armor planes; replace the blank aft block with the stepped, vented engine-hood transition from `sheet.jpg`; enlarge the bridge radar/mast array and visor framing; replace the small angled rail sticks with heavy boxed multi-tube horizontal missile pods along the upper superstructure flanks.
* **Measurable Acceptance:** Zero pillowy shading gradients on superstructure flat faces in `close.png`; aft block has stepped cowling/vent geometry; missile batteries read as heavy horizontal pod clusters on the superstructure sides.

#### F4: Unshrouded Pipe-Like Engine Nozzles & Weak Flat Emissive Discs
* **Evidence:** In [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png), the 6 engines look like smooth cylindrical pipes protruding from a flat black stern wall, with dim, flat blue circles inside and no nozzle rim thickness or petal detail. In [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg), the 6 thrusters are nestled inside heavy collared stern armor shrouds, each nozzle has segmented mechanical rings and outer petals, and the core has a bright cyan-white plasma emission that lights the inner nozzle walls.
* **Concrete Correction:** Add heavy stern armor shrouds framing the upper/mid/lower nozzle pairs, add segmented outer mechanical rings and nozzle petals with thicker rims, apply the `HEAT-SCORCHED METAL` darker bronze/soot gradient toward the nozzle tips, and increase the `ENGINE GLOW (BLUE)` emission strength with a bright white-cyan core and inner-wall bounce.
* **Measurable Acceptance:** In `rear.png`, engine nozzles have visible outer petal/ring relief, stern shroud integration, heat-scorched metal darkening, and high-contrast cyan-white emissive cores.

#### F5: Uniform Clay-Grey Shading & Repetitive Square Grid Pattern
* **Evidence:** In [close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png), the hull and bridge share nearly the same flat light-grey value with a uniform square tile grid across angled slopes, making the 450m warship look like a small plastic model. The five material swatches on [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg) (`HULL PAINT (GREY)`, `BARE METAL`, `HEAT-SCORCHED METAL`, `GLASS`, `ENGINE GLOW`) are not visually differentiated on the hull and turrets.
* **Concrete Correction:** Break up the uniform square grid into elongated naval hull plating bands with varied panel sizes, darker gunmetal armor belt/deck contrast (`BARE METAL` / dark grey), subtle cavity darkening in seams, metallic edge wear along hull chines, and distinct dark reflective `GLASS` on the bridge windows instead of bright white dots along the hull chine.
* **Measurable Acceptance:** `close.png` and `revision-Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
CRUISER 2.5 Baked Paint
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
CRUISER 4.5 Baked Metal
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
CRUISER 7.0 Baked Dark
2026-10-16T19:39:27Z

 succeeded in 91953ms:
 exited 1 in 34106ms:
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
exec
/bin/bash -lc "ls -d /home/claude-agent/.cache/ms-playwright/*/chrome-linux/chrome /home/claude-agent/.cache/ms-playwright/*/chrome-linux64/chrome /tmp/*/chrome-linux/chrome /opt/google/chrome/chrome 2>/dev/null
ls -lh /tmp/alien-harvester-check
ssh gex44 'tail -14 /root/fal-author/heavy-cruiser-naval-v1/build.log'" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 744ms:
/home/claude-agent/.cache/ms-playwright/chromium-1161/chrome-linux/chrome
/home/claude-agent/.cache/ms-playwright/chromium-1223/chrome-linux/chrome
total 31M
-rw-r--r-- 1 claude-agent claude-agent  12M Oct 16 19:21 alien-harvester.glb
-rw-rw-r-- 1 claude-agent claude-agent 5.2K Oct 16 19:21 audit-final.json
-rw-r--r-- 1 claude-agent claude-agent  14M Oct 16 18:48 audit.glb
-rw-rw-r-- 1 claude-agent claude-agent 5.8K Oct 16 19:22 browser-final.log
-rw-rw-r-- 1 claude-agent claude-agent 5.8K Oct 16 19:03 browser.log
-rw-rw-r-- 1 claude-agent claude-agent  38K Oct 16 18:52 build-v1.py
-rw-rw-r-- 1 claude-agent claude-agent  39K Oct 16 18:56 build-v2.py
-rw-rw-r-- 1 claude-agent claude-agent  45K Oct 16 19:06 build-v3.py
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-rw-rw-r-- 1 claude-agent claude-agent  47K Oct 16 19:18 build-v5.py
-rw-rw-r-- 1 claude-agent claude-agent 1.3K Oct 16 19:02 check.cjs
-rw-rw-r-- 1 claude-agent claude-agent  413 Oct 16 18:56 compositor-probe.py
-rw-rw-r-- 1 claude-agent claude-agent 1.2K Oct 16 19:21 contract-final.json
-rw-rw-r-- 1 claude-agent claude-agent 2.0K Oct 16 19:07 contract.py
-rw-rw-r-- 1 claude-agent claude-agent 4.1K Oct 16 19:06 final-corrections.py
-rw-rw-r-- 1 claude-agent claude-agent 2.8K Oct 16 19:19 index.html
-rw-rw-r-- 1 claude-agent claude-agent   24 Oct 16 18:47 install.log
-rw-r--r-- 1 claude-agent claude-agent 612K Oct 16 18:50 metal_plate_02_diff_1k.jpg
drwxrwxr-x 7 claude-agent claude-agent 4.0K Oct 16 18:47 node_modules
-rw-rw-r-- 1 claude-agent claude-agent 1.8K Oct 16 18:47 package-lock.json
-rw-rw-r-- 1 claude-agent claude-agent  122 Oct 16 18:47 package.json
-rw-rw-r-- 1 claude-agent claude-agent 5.8K Oct 16 19:22 report.json
-rw-rw-r-- 1 claude-agent claude-agent  10K Oct 16 18:59 revise3.py
-rw-rw-r-- 1 claude-agent claude-agent 382K Oct 16 19:22 runtime-arms.png
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-rw-rw-r-- 1 claude-agent claude-agent 381K Oct 16 19:22 runtime.png
-rw-r--r-- 1 claude-agent claude-agent 461K Oct 16 18:50 rusty_painted_metal_diff_1k.jpg
-rw-rw-r-- 1 claude-agent claude-agent 5.5K Oct 16 19:12 validator-current.json
-rw-rw-r-- 1 claude-agent claude-agent 5.5K Oct 16 19:21 validator-final.json
-rw-rw-r-- 1 claude-agent claude-agent  14K Oct 16 18:53 validator-v1.json
-rw-r--r-- 1 claude-agent claude-agent 919K Oct 16 19:18 view-probe-0.png
-rw-r--r-- 1 claude-agent claude-agent 847K Oct 16 19:18 view-probe-1.png
-rw-r--r-- 1 claude-agent claude-agent 1.1M Oct 16 19:18 view-probe-2.png
-rw-rw-r-- 1 claude-agent claude-agent 1.1K Oct 16 19:17 view_probe.py
  File "/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py", line 602, in <module>
    if __name__=='__main__':main()
                            ~~~~^^
  File "/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py", line 577, in main
    meta=export()
  File "/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py", line 546, in export
    if path.stat().st_size>12*1024*1024:raise RuntimeError('GLB over budget: '+str(path.stat().st_size))
                                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
RuntimeError: GLB over budget: 13038084


Error: script failed, file: '/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py', exiting.

Blender quit

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exec
/bin/bash -lc "rg 'executablePath|chromium.launch' /tmp/alien-harvester-check /tmp/heavy-bomber-runtime -g '*.cjs' -g '*.mjs' -g '*.js' -g '"'!node_modules'"' | head -8" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 1ms:
/tmp/heavy-bomber-runtime/capture.cjs: const browser=await chromium.launch({executablePath:'/home/claude-agent/.cache/ms-playwright/chromium-1223/chrome-linux/chrome',headless:true,args:['--no-sandbox','--use-gl=angle','--use-angle=swiftshader','--enable-unsafe-swiftshader']});
/tmp/alien-harvester-check/check.cjs:(async()=>{const browser=await chromium.launch({headless:true,executablePath:'/home/claude-agent/.cache/ms-playwright/chromium-1223/chrome-linux/chrome',args:['--no-sandbox','--use-angle=swiftshader','--enable-unsafe-swiftshader']});const page=await browser.newPage({viewport:{width:1600,height:900}});let errors=[];page.on('pageerror',e=>errors.push(String(e)));await page.goto('http://127.0.0.1:8847/');await page.waitForFunction(()=>window.ready||window.failure,{timeout:120000});const report=await page.evaluate(()=>window.report||window.failure);fs.writeFileSync('/tmp/alien-harvester-check/report.json',JSON.stringify({report,errors},null,2));await page.screenshot({path:'/tmp/alien-harvester-check/runtime.png'});await page.evaluate(()=>window.articulate());await page.screenshot({path:'/tmp/alien-harvester-check/runtime-arms.png'});await page.evaluate(()=>window.resetPose());await page.evaluate(()=>window.mapsOff('normal'));await page.screenshot({path:'/tmp/alien-harvester-check/runtime-no-normal.png'});await page.evaluate(()=>window.mapsOff('ao'));await page.screenshot({path:'/tmp/alien-harvester-check/runtime-no-ao.png'});await browser.close();console.log(JSON.stringify({report,errors},null,2));})();

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exec
/bin/bash -lc "python3 - <<'PY'
from pathlib import Path
p=Path('/tmp/heavy-cruiser-naval-check/capture.cjs')
s=p.read_text().replace('/snap/bin/chromium','/home/claude-agent/.cache/ms-playwright/chromium-1223/chrome-linux/chrome')
p.write_text(s)
print('Browser path updated')
PY
ssh gex44 \"python3 - <<'PY'
import json,struct,os
p='/root/fal-author/heavy-cruiser-naval-v1/heavy-cruiser-naval.glb'
b=open(p,'rb').read(); n=struct.unpack_from('<I',b,12)[0]; d=json.loads(b[20:20+n]); a=d['accessors']; print('bytes',len(b),'triangles',sum(a[p['indices']]['count']//3 for m in d['meshes'] for p in m['primitives'])); print('image bytes',sum(d['bufferViews'][i['bufferView']]['byteLength'] for i in d['images'])); print('meshes',len(d['meshes']))
PY\"" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 523ms:
Browser path updated
bytes 13038084 triangles 167211
image bytes 1316645
meshes 11

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exec
/bin/bash -lc "sed -n '1,220p' build_heavy-cruiser-naval.py" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
#!/usr/bin/env python3
"""Original naval heavy cruiser. Run with Blender 5.2 --background --python-exit-code 1.
Clean deterministic build: CC0 downloads -> Cycles tile bakes -> geometry -> GLB -> renders.
Blender authoring frame X=port, -Y=nose, Z=up; glTF X=port,Y=up,Z=nose.
"""
import bpy, bmesh, math, os, sys, json, random, urllib.request, struct, time
from pathlib import Path
from mathutils import Vector, Matrix
from math import sin, cos, pi
import numpy as np
ROOT=Path(__file__).resolve().parent
CACHE=ROOT/'textures'; CACHE.mkdir(exist_ok=True)
QA=ROOT/'qa'; QA.mkdir(exist_ok=True)
random.seed(27)
START=time.time()
PAINTS=[('Naval grey',[.32,.34,.36]),('Gunmetal',[.105,.13,.155]),('Olive drab',[.23,.265,.14]),('Desert sand',[.57,.43,.265]),('Arctic white',[.79,.83,.86]),('Deep navy',[.055,.105,.20])]
MATS=[]; ASSEMBLIES={}; SOCKETS=[]; MOVING={}

def log(s): print('CRUISER',round(time.time()-START,1),s,flush=True)
def reset():
 bpy.ops.object.select_all(action='SELECT'); bpy.ops.object.delete(use_global=False)
 for d in list(bpy.data.materials): bpy.data.materials.remove(d)
 sc=bpy.context.scene; sc.render.engine='CYCLES'; sc.cycles.samples=24; sc.cycles.use_denoising=True
 prefs=bpy.context.preferences.addons['cycles'].preferences
 for mode in ['OPTIX','CUDA']:
  try:
   prefs.compute_device_type=mode; prefs.get_devices()
   if any(d.type==mode for d in prefs.devices):
    for d in prefs.devices: d.use=(d.type==mode)
    sc.cycles.device='GPU'; log('GPU '+mode); break
  except Exception: pass
 else: raise RuntimeError('GPU required')
 sc.unit_settings.system='METRIC'; sc.unit_settings.scale_length=1
 sc.render.image_settings.file_format='PNG'; sc.render.film_transparent=False
 sc.view_settings.view_transform='AgX'; sc.view_settings.exposure=.10
 sc.render.resolution_percentage=100
 sc.world=bpy.data.worlds.new('Space')
 return sc
SC=reset()

def download():
 for ident in ['metal_plate','rusty_metal_04']:
  for typ in ['diff','nor_gl','arm']:
   p=CACHE/f'{ident}_{typ}_1k.jpg'
   if not p.exists():
    url=f'https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/{ident}/{ident}_{typ}_1k.jpg'
    log('Download '+url)
    urllib.request.urlretrieve(url,p)

def node(nt,kind,**kw):
 n=nt.nodes.new(kind)
 for k,v in kw.items(): setattr(n,k,v)
 return n

def bake_material(name,kind):
 m=bpy.data.materials.new(name); m.use_nodes=True; nt=m.node_tree; nt.nodes.clear(); L=nt.links.new
 out=node(nt,'ShaderNodeOutputMaterial'); bs=node(nt,'ShaderNodeBsdfPrincipled'); L(bs.outputs['BSDF'],out.inputs['Surface'])
 uv=node(nt,'ShaderNodeTexCoord')
 def tex(filename,non=False):
  t=node(nt,'ShaderNodeTexImage'); t.image=bpy.data.images.load(str(CACHE/filename),check_existing=True)
  if non:t.image.colorspace_settings.name='Non-Color'
  L(uv.outputs['UV'],t.inputs['Vector']); return t
 def mathn(op,a,b=None):
  n=node(nt,'ShaderNodeMath',operation=op)
  if hasattr(a,'node'): L(a,n.inputs[0])
  else:n.inputs[0].default_value=a
  if b is not None:
   if hasattr(b,'node'):L(b,n.inputs[1])
   else:n.inputs[1].default_value=b
  return n.outputs[0]
 def mix(a,b,factor,blend='MIX'):
  n=node(nt,'ShaderNodeMixRGB',blend_type=blend); n.inputs[0].default_value=factor
  if hasattr(a,'node'):L(a,n.inputs[1])
  else:n.inputs[1].default_value=(*a,1)
  if hasattr(b,'node'):L(b,n.inputs[2])
  else:n.inputs[2].default_value=(*b,1)
  return n.outputs[0]
 rough=.47; metal=.7
 if kind in ['paint','metal','dark','weapon','deck']:
  photo=tex('metal_plate_diff_1k.jpg'); nor=tex('metal_plate_nor_gl_1k.jpg',True); arm=tex('metal_plate_arm_1k.jpg',True)
  rust=tex('rusty_metal_04_diff_1k.jpg')
  bw=node(nt,'ShaderNodeRGBToBW'); L(photo.outputs['Color'],bw.inputs[0])
  normalize=mathn('MULTIPLY_ADD',bw.outputs[0],.62); normalize.node.inputs[2].default_value=.46
  brick=node(nt,'ShaderNodeTexBrick'); L(uv.outputs['UV'],brick.inputs['Vector'])
  brick.inputs['Scale'].default_value=1; brick.inputs['Mortar Size'].default_value=.0017
  brick.inputs['Mortar Smooth'].default_value=.002; brick.inputs['Brick Width'].default_value=.5; brick.inputs['Row Height'].default_value=.25
  brick.inputs['Color1'].default_value=(.72,.72,.72,1); brick.inputs['Color2'].default_value=(1,1,1,1); brick.inputs['Mortar'].default_value=(.28,.28,.28,1)
  noise=node(nt,'ShaderNodeTexNoise'); L(uv.outputs['UV'],noise.inputs['Vector']); noise.inputs['Scale'].default_value=145; noise.inputs['Detail'].default_value=2
  base=normalize
  if kind=='paint':
   base=mix(normalize,brick.outputs['Color'],.45,'MULTIPLY'); rough=.43; metal=.58
  elif kind=='metal':
   base=mix(photo.outputs['Color'],(.36,.40,.44),.72); rough=.34; metal=.88
  elif kind=='dark':
   base=mix(photo.outputs['Color'],(.034,.042,.051),.91); rough=.57; metal=.75
  elif kind=='weapon':
   base=mix(photo.outputs['Color'],(.18,.20,.22),.72); rough=.4; metal=.82
  else:
   base=mix(normalize,brick.outputs['Color'],.65,'MULTIPLY'); base=mix(base,(.10,.12,.135),.82); rough=.67; metal=.55
  # elongated grime and fine impact pitting, baked into the shared tile
  mapping=node(nt,'ShaderNodeVectorMath',operation='MULTIPLY'); L(uv.outputs['UV'],mapping.inputs[0]); mapping.inputs[1].default_value=(12,1.2,1)
  grime=node(nt,'ShaderNodeTexNoise'); L(mapping.outputs[0],grime.inputs['Vector']); grime.inputs['Scale'].default_value=6; grime.inputs['Detail'].default_value=3
  grimecol=node(nt,'ShaderNodeValToRGB'); L(grime.outputs['Fac'],grimecol.inputs[0]); grimecol.color_ramp.elements[0].color=(.58,.58,.58,1); grimecol.color_ramp.elements[1].color=(1,1,1,1)
  base=mix(base,grimecol.outputs[0],.52,'MULTIPLY')
  if kind not in ['paint','deck']:base=mix(base,rust.outputs['Color'],.075)
  # Neutral weathering from the second CC0 scan: broad oxidation, impact specks and polish.
  if kind=='paint':
   rustbw=node(nt,'ShaderNodeRGBToBW');L(rust.outputs[0],rustbw.inputs[0])
   wear=node(nt,'ShaderNodeValToRGB');L(rustbw.outputs[0],wear.inputs[0])
   wear.color_ramp.elements[0].position=.10;wear.color_ramp.elements[0].color=(.29,.29,.29,1)
   wear.color_ramp.elements[1].position=.6;wear.color_ramp.elements[1].color=(1,1,1,1)
   base=mix(base,wear.outputs[0],.24,'MULTIPLY')
  L(base,bs.inputs['Base Color'])
  nm=node(nt,'ShaderNodeNormalMap'); nm.inputs['Strength'].default_value=.22; L(nor.outputs['Color'],nm.inputs['Color'])
  bump=node(nt,'ShaderNodeBump'); bump.inputs['Strength'].default_value=.22; bump.inputs['Distance'].default_value=.045
  L(nm.outputs[0],bump.inputs['Normal']); L(noise.outputs['Fac'],bump.inputs['Height']); L(bump.outputs[0],bs.inputs['Normal'])
  if kind in ['paint','deck']:
   b2=node(nt,'ShaderNodeBump'); b2.inputs['Strength'].default_value=.38; b2.inputs['Distance'].default_value=.09
   L(bump.outputs[0],b2.inputs['Normal']); L(brick.outputs['Fac'],b2.inputs['Height']); b2.invert=True; L(b2.outputs[0],bs.inputs['Normal'])
  sep=node(nt,'ShaderNodeSeparateColor'); L(arm.outputs['Color'],sep.inputs[0])
  roughout=mathn('MULTIPLY_ADD',sep.outputs['Green'],.18); roughout.node.inputs[2].default_value=rough-.09
  aoout=mathn('MULTIPLY_ADD',sep.outputs['Red'],.22); aoout.node.inputs[2].default_value=.78
 else:
  colors={'glass':(.075,.16,.20),'engine':(.035,.46,1.0),'lamp':(.6,.8,1)}
  base=colors[kind]; bs.inputs['Base Color'].default_value=(*base,1); rough=.18 if kind=='glass' else .38; metal=.15
  roughout=None; aoout=None
 bs.inputs['Metallic'].default_value=metal; bs.inputs['Roughness'].default_value=rough
 # A real Cycles bake on a UV tile, used at 8 m, 4 m or 2 m intervals throughout.
 bpy.ops.mesh.primitive_plane_add(size=2); plane=bpy.context.object; plane.name='BakeTile'; plane.data.materials.append(m)
 SC.cycles.samples=8; SC.render.bake.margin=8; SC.render.bake.use_clear=True
 baked={}
 for channel,res in [('Base',1024 if kind in ['paint','metal','dark','weapon','deck'] else 32),('Normal',1024 if kind in ['paint','metal','dark','weapon','deck'] else 32),('ORM',512 if kind in ['paint','metal','dark','weapon','deck'] else 32)]:
  im=bpy.data.images.new(name+'_'+channel,width=res,height=res,alpha=False)
  if channel!='Base':im.colorspace_settings.name='Non-Color'
  target=node(nt,'ShaderNodeTexImage'); target.image=im; nt.nodes.active=target
  if channel=='Base':
   emit=node(nt,'ShaderNodeEmission')
   if hasattr(base,'node'):L(base,emit.inputs[0])
   else:emit.inputs[0].default_value=(*base,1)
   L(emit.outputs[0],out.inputs['Surface']); bpy.ops.object.bake(type='EMIT'); nt.nodes.remove(emit)
  elif channel=='Normal':
   L(bs.outputs[0],out.inputs['Surface']); bpy.ops.object.bake(type='NORMAL')
  else:
   comb=node(nt,'ShaderNodeCombineColor'); comb.inputs['Red'].default_value=1; comb.inputs['Green'].default_value=rough; comb.inputs['Blue'].default_value=metal
   if aoout:L(aoout,comb.inputs['Red'])
   if roughout:L(roughout,comb.inputs['Green'])
   emit=node(nt,'ShaderNodeEmission'); L(comb.outputs[0],emit.inputs[0]); L(emit.outputs[0],out.inputs['Surface']); bpy.ops.object.bake(type='EMIT'); nt.nodes.remove(emit)
  im.filepath_raw=str(CACHE/f'{name}_{channel}.png'); im.file_format='PNG'; im.save(); baked[channel]=im
  nt.nodes.remove(target)
 bpy.data.objects.remove(plane,do_unlink=True)
 nt.nodes.clear(); out=node(nt,'ShaderNodeOutputMaterial'); bs=node(nt,'ShaderNodeBsdfPrincipled'); L(bs.outputs[0],out.inputs[0])
 for ch in ['Base','Normal','ORM']:
  t=node(nt,'ShaderNodeTexImage',name=ch); t.image=baked[ch]
  if ch=='Base':
   if name=='Paint':
    mult=node(nt,'ShaderNodeMixRGB',name='FactionTint',blend_type='MULTIPLY'); mult.inputs[0].default_value=1; mult.inputs[2].default_value=(*PAINTS[0][1],1); L(t.outputs[0],mult.inputs[1]); L(mult.outputs[0],bs.inputs['Base Color'])
   else:L(t.outputs[0],bs.inputs['Base Color'])
  elif ch=='Normal':
   nm=node(nt,'ShaderNodeNormalMap'); L(t.outputs[0],nm.inputs['Color']); L(nm.outputs[0],bs.inputs['Normal'])
  else:
   sp=node(nt,'ShaderNodeSeparateColor'); L(t.outputs[0],sp.inputs[0]); L(sp.outputs['Green'],bs.inputs['Roughness']); L(sp.outputs['Blue'],bs.inputs['Metallic'])
   group=bpy.data.node_groups.get('glTF Material Output')
   if group is None:
    group=bpy.data.node_groups.new('glTF Material Output','ShaderNodeTree'); group.interface.new_socket(name='Occlusion',in_out='INPUT',socket_type='NodeSocketFloat')
   occ=node(nt,'ShaderNodeGroup'); occ.node_tree=group; L(sp.outputs['Red'],occ.inputs['Occlusion'])
 if kind in ['engine','lamp']:
  L(nt.nodes['Base'].outputs[0],bs.inputs['Emission Color']); bs.inputs['Emission Strength'].default_value=2.5 if kind=='engine' else 1.4
 if kind=='glass':
  bs.inputs['Alpha'].default_value=.62; bs.inputs['Metallic'].default_value=.25
  m.surface_render_method='DITHERED'; m.diffuse_color=(.075,.16,.20,.62)
 MATS.append(m); log('Baked '+name)
 return len(MATS)-1

# Component builders accumulate geometry directly; no thousands of scene nodes.
class Part:
 def __init__(self,name,pivot=(0,0,0),parent=None,rot=(0,0,0)):
  self.name=name; self.pivot=Vector(pivot); self.parent=parent; self.rot=rot; self.v=[]; self.f=[]; self.mi=[]; self.sm=[]
  ASSEMBLIES[name]=self
 def add(self,v,f,mat=0,bevel=0,smooth=False):
  bm=bmesh.new(); vv=[bm.verts.new(p) for p in v]
  for face in f:
   try:bm.faces.new([vv[i] for i in face])
   except ValueError:pass
  bmesh.ops.recalc_face_normals(bm,faces=list(bm.faces))
  if bevel:
   bmesh.ops.bevel(bm,geom=list(bm.edges),offset=bevel,segments=2,affect='EDGES',profile=.5)
   bmesh.ops.recalc_face_normals(bm,faces=list(bm.faces))
  bm.verts.ensure_lookup_table(); bm.verts.index_update(); off=len(self.v)
  self.v += [tuple(x.co) for x in bm.verts]
  for face in bm.faces:
   self.f.append(tuple(off+x.index for x in face.verts)); self.mi.append(mat); self.sm.append(smooth and len(face.verts)==4)
  bm.free()
 def box(self,c,d,mat=0,b=.12,rot=None):
  v=[Vector((x*d[0]/2,y*d[1]/2,z*d[2]/2)) for x,y,z in [(-1,-1,-1),(1,-1,-1),(1,1,-1),(-1,1,-1),(-1,-1,1),(1,-1,1),(1,1,1),(-1,1,1)]]
  if rot:v=[rot@p for p in v]
  v=[tuple(p+Vector(c)) for p in v]
  self.add(v,[(0,3,2,1),(4,5,6,7),(0,1,5,4),(1,2,6,5),(2,3,7,6),(3,0,4,7)],mat,min(b,min(d)*.22))
 def loft(self,sections,mat=0,b=.2):
  # z-oriented chamfered rectangle rings: z, halfwidth, halfdepth, ycenter, chamfer
  v=[]
  for z,w,l,y,c in sections:
   v.extend([(w-c,y-l,z),(w,y-l+c,z),(w,y+l-c,z),(w-c,y+l,z),(-w+c,y+l,z),(-w,y+l-c,z),(-w,y-l+c,z),(-w+c,y-l,z)])
  f=[tuple(reversed(range(8))),tuple(range(len(v)-8,len(v)))]
  for j in range(len(sections)-1):
   for i in range(8):f.append((j*8+i,j*8+(i+1)%8,(j+1)*8+(i+1)%8,(j+1)*8+i))
  self.add(v,f,mat,b)
 def cyl(self,a,b,r,mat=1,n=16,r2=None):
  a=Vector(a); b=Vector(b); d=b-a; q=d.to_track_quat('Z','Y'); r2=r if r2 is None else r2
  # profiled bevel at each end
  h=d.length; e=min(.12,r*.11,h*.14); pr=[(0,max(.01,r-e)),(e,r),(h-e,r2),(h,max(.01,r2-e))]
  v=[tuple(a+q@Vector((rr*cos(i*2*pi/n),rr*sin(i*2*pi/n),z))) for z,rr in pr for i in range(n)]
  f=[tuple(reversed(range(n))),tuple(range(3*n,4*n))]
  for j in range(3):
   for i in range(n):f.append((j*n+i,j*n+(i+1)%n,(j+1)*n+(i+1)%n,(j+1)*n+i))
  self.add(v,f,mat,0,True)
 def tube(self,c,profile,mat=1,n=48,axis='Y'):
  # closed lathed sectional profile; explicit inner wall gives real nozzle / muzzle depth
  v=[]
  for along,r in profile:
   for i in range(n):

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/bin/bash -lc "sed -n '220,620p' build_heavy-cruiser-naval.py" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
   for i in range(n):
    a=2*pi*i/n; v.append((c[0]+r*cos(a),c[1]+along,c[2]+r*sin(a)) if axis=='Y' else (c[0]+r*cos(a),c[1]+r*sin(a),c[2]+along))
  f=[]
  for j in range(len(profile)):
   j2=(j+1)%len(profile)
   for i in range(n):f.append((j*n+i,j*n+(i+1)%n,j2*n+(i+1)%n,j2*n+i))
  self.add(v,f,mat,0,True)
 def create(self):
  mesh=bpy.data.meshes.new(self.name); mesh.from_pydata(self.v,[],self.f); mesh.update()
  ob=bpy.data.objects.new(self.name,mesh); bpy.context.collection.objects.link(ob)
  for m in MATS:mesh.materials.append(m)
  for p,mi,sm in zip(mesh.polygons,self.mi,self.sm):p.material_index=mi;p.use_smooth=sm
  bm=bmesh.new();bm.from_mesh(mesh);bmesh.ops.triangulate(bm,faces=list(bm.faces))
  dead=[f for f in bm.faces if f.calc_area()<1e-9]
  if dead:bmesh.ops.delete(bm,geom=dead,context='FACES')
  bm.to_mesh(mesh);bm.free();mesh.update()
  uv=mesh.uv_layers.new(name='UVMap')
  for p in mesh.polygons:
   axis=max(range(3),key=lambda i:abs(p.normal[i])); scale=8 if p.material_index in [0,4] else 3.2
   for li in p.loop_indices:
    co=mesh.vertices[mesh.loops[li].vertex_index].co
    a,b=(co.y,co.z) if axis==0 else ((co.x,co.z) if axis==1 else (co.x,co.y))
    uv.data[li].uv=(a/scale,b/scale)
  ob.location=self.pivot; ob.rotation_euler=self.rot
  if self.parent:ob.parent=ASSEMBLIES[self.parent].ob
  self.ob=ob; return ob

def socket(name,p,parent='Hull',rot=(0,0,0),**meta):SOCKETS.append((name,p,parent,rot,meta))
def pipe(p,points,r=.18,mat=1):
 for a,b in zip(points,points[1:]):p.cyl(a,b,r,mat,10)
def rail(p,points):
 for pos in points:p.cyl(pos,(pos[0],pos[1],pos[2]+1.1),.055,1,8)
 for h in [.45,1.1]:pipe(p,[(x,y,z+h) for x,y,z in points],.045)
def bolts(p,c,dx,dy,z,mat=1):
 for x in [-dx,dx]:
  for y in [-dy,dy]:p.cyl((c[0]+x,c[1]+y,z),(c[0]+x,c[1]+y,z+.12),.14,mat,6)

def build_geometry():
 H=Part('Hull')
 # Eight-sided naval hull with asymmetric height and a long flared, raked ram.
 stations=[(-225,4.4,-19,13),(-207,8,-21,15),(-176,15,-22,16),(-133,23,-23,17),(-82,27,-24,18),(20,29,-24,18),(102,28,-23,18),(160,25,-20,16),(184,21,-17,14)]
 def cross(y,w,bot,top):
  rake=max(0,(-y-190)/35)
  return [(0,y+18*rake,top),(w*.77,y+18*rake,top),(w,y+14*rake,top-7),(w,y+8*rake,bot+11),(w*.72,y+8*rake,bot),(0,y+8*rake,bot),(-w*.72,y+8*rake,bot),(-w,y+8*rake,bot+11),(-w,y+14*rake,top-7),(-w*.77,y+18*rake,top)]
 verts=[]
 for s in stations:verts+=cross(*s)
 faces=[tuple(reversed(range(10))),tuple(range(len(verts)-10,len(verts)))]
 for j in range(len(stations)-1):
  for k in range(10):faces.append((j*10+k,j*10+(k+1)%10,(j+1)*10+(k+1)%10,(j+1)*10+k))
 H.add(verts,faces,0,.45)
 # Flared bow cheeks: distinct swept plates with a recessed central spine.
 for sign in [-1,1]:
  vs=[(sign*x,y,z) for x,y,z in [(4.0,-225,-21),(6,-206,14),(15.5,-174,15.8),(24.5,-129,15),(28,-82,10),(28,-82,-15),(21,-135,-20),(10,-189,-22),(5.3,-220,-22),(8,-207,-7),(19,-167,3),(27,-117,4)]]
  fs=[(0,1,2,10,9),(2,3,11,10),(3,4,5,11),(11,5,6,7,9,10),(9,7,8,0),(0,8,7,6,5,4,3,2,1)]
  H.add(vs,fs,0,.32)
  # layered lower armour rail following the curve of the hull
  for a,b in zip(stations[1:-1],stations[2:]):
   y,w,bot,top=a; yy,ww,bb,tt=b
   v=[(sign*(w+.12),y,bot+7),(sign*(ww+.12),yy,bb+7),(sign*(ww+.12),yy,bb+8.25),(sign*(w+.12),y,bot+8.25),(sign*(w-.4),y,bot+7),(sign*(ww-.4),yy,bb+7),(sign*(ww-.4),yy,bb+8.25),(sign*(w-.4),y,bot+8.25)]
   H.add(v,[(0,1,2,3),(4,7,6,5),(0,4,5,1),(3,2,6,7),(0,3,7,4),(1,5,6,2)],2,.12)
 # Inset bow observation/sensor spine, framed and barred.
 H.box((0,-211,0),(6.9,1.3,22),2,.2)
 for z in range(-9,11):H.box((0,-211.8,z),(6.7,.35,.25),1,.05)
 for s in [-1,1]:H.box((s*3.6,-211.9,0),(.45,.65,22.8),1,.08)
 # upper deck inset: longitudinal loft rather than a slab
 H.loft([(17.3,20,107,-40,5),(18.2,20,107,-40,5)],4,.18)
 H.loft([(17,23.5,62,105,6),(18.4,22,61,105,5)],4,.18)
 # raised forecastle and citadel continuous battered walls
 H.loft([(17,22,48,10,6),(26,19,43,12,5),(28,17.8,40,14,4)],0,.55)
 H.loft([(27.5,16,29,14,4),(39,12.5,22,19,3)],0,.45)
 # angled bridge: overlapping armored brow, dark continuous glazing, roof and wings
 H.loft([(38.4,13.3,17,18,2.8),(42.6,14.7,18,18,2.8)],2,.25)
 H.loft([(40,13.4,16.9,17.6,2.7),(44.5,14.0,17.4,17.6,2.5)],5,.15)
 H.loft([(44.4,15.4,19,18,2.8),(46.1,15.2,18.7,18,2.5)],0,.27)
 for s in [-1,1]:
  for y in [5,12,19,26,33]:H.box((s*14.05,y,42.5),(.4,.45,4.5),1,.08)
  H.loft([(35,s*0+18,7,23,2),(37,17.7,7,23,2)],0,.25)
 # front bridge mullions & interior consoles glimpsed through glazing
 for x in [-10,-5,0,5,10]:H.box((x,.1,42.2),(.4,.7,4),1,.08)
 H.box((0,5,40),(20,3,1.5),2,.12)
 for x in [-8,-4,0,4,8]:H.box((x,3.35,40.9),(2,.2,.65),7,.04)
 H.loft([(46,7,8,24,2),(52,5.4,6,25,1.5)],0,.25)
 H.box((0,25,52.5),(12,10,1.2),1,.16)
 H.cyl((0,25,53),(0,25,62),.14,1,12)
 H.cyl((3,27,52.5),(3,27,58),.09,1,10)
 H.cyl((-4,26,52.5),(-4,26,56),.1,1,10)
 H.box((0,25,54),(8,.5,.45),2,.1)
 # Low aft machinery island and gun pedestal.
 H.loft([(17,23,34,116,5),(25,19,30,116,4)],0,.5)
 H.loft([(16,22,20,168,5),(27,18,16,171,4)],0,.4)
 for s in [-1,1]:
  # flank longitudinal recesses, framed machinery bays and discrete armor belt panels
  for y in [-85,-52,-19,14,47,80,113,146]:
   x=s*(27 if y<0 else 28)
   H.box((x,y,-3),(1.6,28,13.5),2,.25)
   H.box((x+s*.8,y,3.8),(.9,29,.8),1,.12)
   H.box((x+s*.8,y,-10),(.9,29,.8),1,.12)
   for yy in [y-14,y+14]:H.box((x+s*.9,yy,-3),(.8,.7,13),0,.16)
   for zz in [-7,-3,1]:
    H.cyl((x+s*1.4,y-11,zz),(x+s*1.4,y+11,zz),.26,1,10)
   for yy in [y-8,y+8]:H.box((x+s*1.45,yy,-3),(1.1,1.7,12),2,.13)
  for y in [-112,-78,-44,-10,24,58,92,126,157]:
   w=24 if y<-90 else (27 if y<130 else 24)
   # sloping upper shoulder panels
   ang=Matrix.Rotation(s*math.radians(31),3,'Y')
   H.box((s*(w-1),y,12.4),(5.6,30,.7),0,.17,ang)
   H.box((s*(w-1),y+13.2,12.9),(4.8,.45,.2),1,.04,ang)
  # human-scale inset lit porthole bands near citadel / aft quarters
  for y in list(range(-28,53,4))+list(range(103,150,4)):
   x=s*(20 if y<60 else 21)
   H.box((x,y,25 if y<60 else 22),(.45,2.05,.75),2,.08)
   H.box((x+s*.25,y,25 if y<60 else 22),(.12,1.45,.35),7,.025)
  # machinery modules and side docking airlocks between sponsons
  for y in [-7,75]:
   H.box((s*30,y,-1),(4,16,20),0,.55)
   H.box((s*32.12,y,-1),(.4,12.4,15.5),2,.2)
   H.box((s*32.4,y,-1),(.4,10.8,13.6),1,.2)
   H.box((s*32.65,y,-1),(.3,.22,12.4),2,.04)
   for yy in [-4,4]:
    for zz in [-5,3]:H.box((s*32.8,y+yy,zz),(.35,1.2,.45),2,.08)
  # cooling louvres on bridge sides
  for y in [-4,37]:
   H.box((s*17,y,30),(1,14,7),2,.15)
   for j in range(12):H.box((s*17.6,y-6+j*1.05,30),(.7,.25,6.3),1,.04)
  # deck handrails at service routes, broken only around weapons
  for a,b in [(-151,-118),(-16,37),(66,85),(139,165)]:
   rail(H,[(s*(15 if a<-100 else 22),y,18.5) for y in range(a,b+1,4)])
  # conduits, service hatches and compact deck fittings
  pipe(H,[(s*17,-125,18.5),(s*18,-85,18.5),(s*20,-76,18.5)],.3)
  pipe(H,[(s*24,56,19),(s*24,146,19),(s*19,158,22)],.34)
  for y in [-142,-126,-108,61,78,140,156]:
   H.box((s*13,y,18.7),(4,6,.55),2,.16); H.box((s*13,y,19.05),(3.6,5.5,.22),0,.1)
   bolts(H,(s*13,y),1.45,2.25,19.18)
  for y in [-172,-158]:
   H.cyl((s*7,y,16),(s*7,y,18.5),.4,1,12); H.box((s*7,y,18.6),(3,.8,.55),1,.1)
 # bottom keel spine + armored ventral plinth
 H.loft([(-24,16,76,25,4),(-21,20,82,25,5)],2,.4)
 H.loft([(-25,14,20,-29,3),(-21,17,23,-29,3)],0,.3)
 # main turrets: two forward superfiring, one stern, one ventral
 main=[((0,-105,18.5),0,False),((0,-53,28.2),0,False),((0,113,25.5),pi,False),((0,-29,-24.5),0,True)]
 gunid=0; muzzle=0
 def turret(pivot,yaw,size,barrels,under=False):
  nonlocal gunid,muzzle
  gunid+=1; idx=gunid; name=f'Turret_{idx}'; gn=f'Gun_{idx}'
  ro=(pi if under else 0,0,yaw)
  # stationary barbette ring attached to Hull; gun house itself independent.
  radius=8.8*size
  z=pivot[2]; direction=-1 if under else 1
  H.cyl((pivot[0],pivot[1],z-direction*.8),(pivot[0],pivot[1],z+direction*.35),radius*1.06,2,32)
  T=Part(name,pivot,'Hull',ro)
  T.cyl((0,0,-.2),(0,0,1.2*size),radius,1,32)
  T.loft([(1*size,9.4*size,10.8*size,1*size,2.2*size),(6.8*size,8.5*size,9.5*size,1.7*size,1.6*size),(8.1*size,7.8*size,8*size,2.2*size,1.3*size)],3,.28*size)
  T.box((0,5.5*size,8.2*size),(7*size,5*size,.5*size),1,.12*size)
  T.box((5.5*size,3*size,8.7*size),(3*size,3.3*size,1.1*size),3,.18*size)
  for side in [-1,1]:
   T.box((side*8.6*size,2*size,4.3*size),(.65*size,8*size,4*size),2,.16*size)
   for yy in [-.5,2,4.5]:T.box((side*8.99*size,yy*size,4.5*size),(.2*size,1.6*size,2.3*size),1,.05*size)
   T.cyl((side*8.1*size,-6*size,4*size),(side*8.1*size,-4.5*size,4*size),.8*size,1,16)
  G=Part(gn,(0,-7.4*size,4.6*size),name)
  G.cyl((-7.5*size,0,0),(7.5*size,0,0),1.9*size,2,20)
  for j in range(barrels):
   xx=(j-(barrels-1)/2)*4.7*size
   G.box((xx,-.5*size,0),(3.5*size,3.4*size,3.3*size),3,.36*size)
   # continuous stepped recoil sleeve and hollow muzzle, no end cap across bore
   G.tube((xx,0,0),[(0,1.45*size),(-4*size,1.45*size),(-5.5*size,1.14*size),(-8.5*size,1.14*size),(-9*size,.88*size),(-22*size,.68*size),(-23*size,.68*size),(-23*size,.48*size),(-20.3*size,.48*size),(-20.3*size,.55*size),(-1*size,.6*size)],1,24)
   for yy in [-3.8,-8.7]:G.tube((xx,yy*size,0),[(-.25*size,1.5*size),(.25*size,1.5*size),(.25*size,1.1*size),(-.25*size,1.1*size)],2,20)
   muzzle+=1; socket(f'Muzzle_{muzzle}',(xx,-23*size,0),gn)
  MOVING[name]={'axis':[0,-1 if under else 1,0],'role':'main turret' if barrels==3 else 'secondary turret'}
  MOVING[gn]={'axis':[1,0,0],'role':'gun elevation'}
 for pos,yaw,under in main:turret(pos,yaw,1 if not under else .84,3,under)
 for sign in [-1,1]:
  for y in [-67,32,124]:
   H.box((sign*27.5,y,1.1),(9,18,12),0,.6)
   turret((sign*29.2,y,7.1),0 if y<100 else pi,.67,2)
 # missile cells in paired inclined racks; each has visible collar and launch hardpoint
 hard=0
 for sign in [-1,1]:
  for cy in [61,151]:
   H.box((sign*20,cy,20),(12,17,3),2,.35)
   for row in range(2):
    for col in range(4):
     x=sign*(16+col*2.65); y=cy-5+row*6
     H.cyl((x,y+3,21.1),(x,y-3,24.3),1.15,1,16)
     H.cyl((x,y-2.8,24.2),(x,y-3.25,24.45),1.29,2,16)
     H.cyl((x,y-3.26,24.45),(x,y-3.38,24.52),.89,3,16)
     hard+=1;socket(f'Hardpoint_{hard}',(x,y-3.4,24.55))
   for y in [cy-6,cy+6]:H.box((sign*20,y,21.3),(12.3,.65,2.8),0,.15)
 # engine mounting bulkhead and six nozzle pods, arranged in a hexagon
 H.loft([(-17,23,14,179,5),(17,23,14,179,5)],2,.7)
 positions=[(-12,11),(12,11),(-21,-3),(21,-3),(-12,-17),(12,-17)]
 for i,(x,z) in enumerate(positions,1):
  H.tube((x,178,z),[(0,6.3),(3,7.8),(13,7.8),(17,6.9),(28,7.2),(39,8),(46.5,7.8),(47,7.3),(46,6.2),(38,5.3),(35,4.6),(32,4.6),(32,5.1),(20,5.1),(0,5.9)],1,48)
  for yy in [183,190,201,214,222]:H.tube((x,yy,z),[(-.45,7.8),(.45,7.8),(.45,7.35),(-.45,7.35)],2,40)
  # heat shield petals, longitudinal nozzle ribs and fasteners
  for j in range(12):
   a=2*pi*j/12
   px=x+7.45*cos(a); pz=z+7.45*sin(a)
   H.cyl((px,196,pz),(px,222,pz),.24,2,8)
   H.cyl((x+7.7*cos(a),219,z+7.7*sin(a)),(x+7.7*cos(a),220,z+7.7*sin(a)),.26,1,8)
  H.cyl((x,211,z),(x,212,z),4.55,6,48)
  H.tube((x,214,z),[(0,5.3),(.5,5.3),(.5,4.8),(0,4.8)],6,48)
  H.cyl((x,212.1,z),(x,213,z),1.15,2,24)
  socket(f'Thruster_{i}',(x,225,z))
 # stern plumbing exposed between armored shoulders
 for s in [-1,1]:
  for z in [-8,0,8]:pipe(H,[(s*20,160,z),(s*24,172,z),(s*24,185,z)],.5)
 # Human-scale antennas, radomes and nav-light cages.
 for x,y,z in [(-11,41,40),(11,41,40),(-19,139,26),(19,139,26)]:
  H.cyl((x,y,z),(x,y,z+1.8),.8,2,16); H.cyl((x,y,z+1.8),(x,y,z+3.7),.6,1,16,r2=.15)
 for s in [-1,1]:
  H.box((s*33.6,32,8),(2.8,1.6,.5),2,.1)
  H.box((s*34.5,32,8.5),(.6,.8,.5),7,.09)
 socket('Light_Nav_L',(35,32,8.7),color=[1,0,0]); socket('Light_Nav_R',(-35,32,8.7),color=[0,1,0])
 socket('Light_Beacon',(0,25,53.5));socket('Camera_Chase',(0,310,95))
 # Layered armor plating, broad shallow recesses and service trunks interrupt large blank masses.
 for sign in [-1,1]:
  # Forebody panel courses trace the actual flared sheer. Thickness is visible at every seam.
  for j,(y,w,z) in enumerate([(-192,11,-1),(-170,16.8,-1),(-147,21.4,-1),(-122,25,-1),(-96,27.7,-1)]):
   angle=Matrix.Rotation(-sign*math.radians(10 if j<3 else 3),3,'Z')
   H.box((sign*w,y,z),(.55,20,13.5),0,.15,angle)
   H.box((sign*(w+.32),y-6,z+4),(.3,3.5,.35),1,.06,angle)
   H.box((sign*(w+.33),y+6,z-4),(.3,2,.4),2,.06,angle)
  # Upper shoulder access-panel strips and armored brow with narrow steel exposed edges.
  for y in [-86,-52,-18,16,50,84,118,150]:
   for row in [-1,1]:
    x=sign*(23.2+row*.9)
    H.box((x,y,17.5),(1.3,20,.25),1,.07)
  # Angled citadel reinforcement ribs: larger structural rhythm than the tiled seams.
  for y in [-21,-7,7,21,35,48]:
   H.box((sign*19.2,y,23),(.7,.8,7),1,.11,Matrix.Rotation(-sign*.23,3,'Y'))
  for y in [94,107,120,133]:
   H.box((sign*20.5,y,21.4),(.65,.8,6.4),1,.1,Matrix.Rotation(-sign*.35,3,'Y'))
  # Stern heat-exchanger banks: real inset beds, louvers, braced pipework.
  H.box((sign*10,171,27.3),(12,24,.7),2,.2)
  for k in range(15):H.box((sign*10,160+k*1.5,27.8),(10.5,.45,.8),1,.09)
  H.box((sign*20.4,173,20),(.6,21,9),2,.18)
  for k in range(12):H.box((sign*20.8,164+k*1.5,20),(.4,.4,7.6),1,.07)
  # Paired auxiliary sensor/funnel housings behind the bridge, adding a stepped aft silhouette.
  if sign==1:H.loft([(28,4.4,9,44,1.2),(33.5,3.4,7,45,1),(35,3.2,6.6,45,1)],2,.22)
  pipe(H,[(sign*13.5,38,36),(sign*13.5,44,36),(sign*13.5,44,32)],.4)
  # low catwalk shields, recessed side strip; no spurious text or faction marks
  for a,b in [(-151,-120),(-13,34),(68,85),(141,164)]:
   H.box((sign*(15.6 if a<-100 else 22.7),(a+b)/2,18.8),(.3,b-a,.6),2,.08)
 # Bridge roof equipment and a proper open mast with stays.
 H.box((0,14,46.5),(15,7,.45),2,.14)
 for x in [-5,0,5]:H.box((x,14,46.8),(3.2,5.8,.35),1,.1)
 for sign in [-1,1]:
  pipe(H,[(sign*2.6,25,53),(0,25,59)],.09)
  H.cyl((sign*9,23,46),(sign*9,23,48.2),1.2,2,20)
  H.cyl((sign*9,23,48.2),(sign*9,23,49.7),1.2,1,20,r2=.3)
 # Recessed forward armor apron and maintenance access on the bridge face.
 H.box((0,-4.0,33),(9,.4,4),2,.15)
 for x in [-3.4,-1.7,0,1.7,3.4]:H.box((x,-4.28,33),(.7,.25,3),1,.07)
 # normalize exact mesh dimensions before creating pivoted objects; transforms remain untouched.
 # width is determined by broadside gun tips (~75 m): compress only lateral world geometry.
 for p in ASSEMBLIES.values():p.create()
 for name,pos,parent,rot,meta in SOCKETS:
  ob=bpy.data.objects.new(name,None);bpy.context.collection.objects.link(ob);ob.empty_display_size=1
  ob.parent=ASSEMBLIES[parent].ob;ob.location=pos;ob.rotation_euler=rot
  for k,v in meta.items():ob[k]=v
 bpy.context.view_layer.update()
 # Apply affine dimensions in WORLD then back into each mesh's local frame, preserving all pivots.
 objects=[p.ob for p in ASSEMBLIES.values()]
 pts=[o.matrix_world@Vector(c) for o in objects for c in o.bound_box]
 lo=Vector([min(p[i] for p in pts) for i in range(3)]); hi=Vector([max(p[i] for p in pts) for i in range(3)])
 factors=Vector((70/(hi.x-lo.x),450/(hi.y-lo.y),90/(hi.z-lo.z)))
 old={o.name:o.matrix_world.copy() for o in list(objects)+[bpy.data.objects[s[0]] for s in SOCKETS]}
 worldScale=Matrix.Diagonal((*factors,1))
 for o in objects:
  oldmat=old[o.name]; newloc=worldScale@oldmat.translation; rot=oldmat.to_quaternion().to_matrix().to_4x4(); rot.translation=newloc
  deform=rot.inverted()@worldScale@oldmat
  for v in o.data.vertices:v.co=deform@v.co
  o.matrix_world=rot
 bpy.context.view_layer.update()
 for name,*_ in SOCKETS:
  ob=bpy.data.objects[name]; w=old[name].copy();w.translation=worldScale@w.translation;ob.matrix_world=w
 bpy.context.view_layer.update()
 cache={}
 for o in objects:
  signature=(tuple(tuple(round(c,5) for c in v.co) for v in o.data.vertices),tuple((tuple(p.vertices),p.material_index) for p in o.data.polygons))
  if signature in cache:o.data=cache[signature]
  else:cache[signature]=o.data
 log('Geometry components '+str(len(H.f))+' static faces')


def setup_lighting():
 w=SC.world;w.use_nodes=True;n=w.node_tree.nodes;n.clear();L=w.node_tree.links.new
 tc=node(w.node_tree,'ShaderNodeTexCoord');sep=node(w.node_tree,'ShaderNodeSeparateXYZ');L(tc.outputs['Normal'],sep.inputs[0])
 ramp=node(w.node_tree,'ShaderNodeValToRGB');L(sep.outputs['Z'],ramp.inputs[0]);ramp.color_ramp.elements[0].color=(.004,.006,.012,1);ramp.color_ramp.elements[1].color=(.015,.027,.046,1)
 bg=node(w.node_tree,'ShaderNodeBackground');bg.inputs['Strength'].default_value=.36;L(ramp.outputs[0],bg.inputs[0]);out=node(w.node_tree,'ShaderNodeOutputWorld');L(bg.outputs[0],out.inputs[0])
 def sun(name,loc,energy,color,angle):
  d=bpy.data.lights.new(name,'SUN');d.energy=energy;d.color=color;d.angle=angle;o=bpy.data.objects.new(name,d);bpy.context.collection.objects.link(o);o.location=loc;o.rotation_euler=(-Vector(loc)).to_track_quat('-Z','Y').to_euler()
 sun('Key',(-150,-200,300),2.8,(1,.95,.88),.10)
 sun('CoolFill',(200,-70,90),.85,(.64,.78,1),.28)
 sun('Rim',(10,200,140),2.0,(.65,.8,1),.14)
 sun('LowerBounce',(-50,-10,-180),.36,(.59,.7,1),.3)
 camd=bpy.data.cameras.new('RenderCamera');cam=bpy.data.objects.new('RenderCamera',camd);bpy.context.collection.objects.link(cam);SC.camera=cam
 camd.type='ORTHO';camd.clip_end=3000
 return cam

def camera_view(cam,mode='hero'):
 if mode=='side':cam.location=(600,0,20);target=Vector((0,0,12));cam.data.ortho_scale=490
 elif mode=='rear':cam.location=(340,540,230);target=Vector((0,55,8));cam.data.ortho_scale=440
 elif mode=='close':cam.location=(110,-122,90);target=Vector((0,-45,27));cam.data.ortho_scale=143
 else:cam.location=(370,-490,245);target=Vector((0,-10,6));cam.data.ortho_scale=455
 cam.rotation_euler=(target-cam.location).to_track_quat('-Z','Y').to_euler()

def render(path,w=1920,h=1080,samples=40):
 SC.render.resolution_x=w;SC.render.resolution_y=h;SC.cycles.samples=samples;SC.render.filepath=str(path);bpy.ops.render.render(write_still=True);log('Rendered '+str(path.name))

def patch_glb(path):
 data=path.read_bytes();jl=struct.unpack_from('<I',data,12)[0];doc=json.loads(data[20:20+jl]);blob=data[20+jl:]
 for m in doc.get('materials',[]):
  if m['name']=='Paint':m['pbrMetallicRoughness']['baseColorFactor']=[*PAINTS[0][1],1]
  if m['name']=='Glass':m['alphaMode']='BLEND';m['doubleSided']=True
 raw=json.dumps(doc,separators=(',',':')).encode();raw+=b' '*((-len(raw))%4)
 path.write_bytes(struct.pack('<4sII',b'glTF',2,20+len(raw)+len(blob))+struct.pack('<I4s',len(raw),b'JSON')+raw+blob)
 return doc

def export():
 bpy.ops.object.select_all(action='DESELECT')
 for o in SC.objects:
  if o.type in ['MESH','EMPTY']:o.select_set(True)
 path=ROOT/'heavy-cruiser-naval.glb'
 bpy.ops.export_scene.gltf(filepath=str(path),export_format='GLB',use_selection=True,export_yup=True,export_apply=False,export_image_format='JPEG',export_jpeg_quality=88,export_texcoords=True,export_normals=True,export_materials='EXPORT',export_cameras=False,export_lights=False,export_animations=False)
 doc=patch_glb(path)
 if path.stat().st_size>12*1024*1024:raise RuntimeError('GLB over budget: '+str(path.stat().st_size))
 log('GLB bytes '+str(path.stat().st_size))
 # Metadata is exported in glTF coordinates, matching the actual world placement.
 def cv(v):return [round(v[0],5),round(v[2],5),round(-v[1],5)]
 meshobs=[o for o in SC.objects if o.type=='MESH'];pts=[o.matrix_world@Vector(c) for o in meshobs for c in o.bound_box]
 pp=[cv(p) for p in pts];lo=[min(p[i] for p in pp) for i in range(3)];hi=[max(p[i] for p in pp) for i in range(3)]
 tris=sum(sum(len(p.vertices)-2 for p in o.data.polygons) for o in meshobs)
 nd={}
 for o in SC.objects:
  if o.type not in ['MESH','EMPTY']:continue
  nd[o.name]={'world_position':cv(o.matrix_world.translation),'parent':o.parent.name if o.parent else None,'type':'mesh' if o.type=='MESH' else 'socket'}
  if o.name in MOVING:nd[o.name].update(MOVING[o.name])
 meta={'asset':'heavy-cruiser-naval','units':'metres','coordinate_system':{'up':'+Y','nose':'+Z','left':'+X'},'bounding_box':{'min':lo,'max':hi,'size':[round(hi[i]-lo[i],4) for i in range(3)]},'triangles':tris,'materials':[m.name for m in MATS],'nodes':nd,'axes':{k:v['axis'] for k,v in MOVING.items()},'paints':[{'name':n,'linear_rgb':c} for n,c in PAINTS]}
 (ROOT/'nodes.json').write_text(json.dumps(meta,indent=2))
 (ROOT/'NOTES.md').write_text('\n'.join([
 'Original 450 × 70 × 90 m naval space cruiser: four triple main turrets, six twin flank turrets, 32 missile cells, six engines; pivoted weapons and game sockets.',
 f'{tris:,} triangles; {len(meshobs)} mesh nodes; GLB {path.stat().st_size/1048576:.2f} MiB; Y up, +Z nose, +X port, metre units.',
 '8 materials: Paint, Metal, Dark, Weapons, Deck, Glass (BLEND), Engines, Lamps; neutral Paint bake with default linear factor [0.32, 0.34, 0.36].',
 'Cycles GPU tile bakes: Base/Normal 1024² and ORM 512² (Glass/Engines/Lamps 32²); shared world-scale UVs; JPEG embedded in GLB; no external runtime files.',
 'Poly Haven CC0 ids: metal_plate, rusty_metal_04; https://polyhaven.com/a/metal_plate ; https://polyhaven.com/a/rusty_metal_04 ; licence https://polyhaven.com/license .',
 'Reference differences: original faceted ram and bridge detailing, six hex-arranged nozzles; restrained patina for vacuum service, no markings; no interior beyond bridge console silhouettes.'
 ])+'\n')
 assert 80000<=tris<=200000, ('Triangle budget',tris)
 return meta

def main():
 download()
 for name,kind in [('Paint','paint'),('Metal','metal'),('Dark','dark'),('Weapons','weapon'),('Deck','deck'),('Glass','glass'),('Engines','engine'),('Lamps','lamp')]:bake_material(name,kind)
 build_geometry();cam=setup_lighting();camera_view(cam)
 clay=bpy.data.materials.new('QA_Clay');clay.use_nodes=True;clay.node_tree.nodes.get('Principled BSDF').inputs['Base Color'].default_value=(.35,.35,.35,1);clay.node_tree.nodes.get('Principled BSDF').inputs['Roughness'].default_value=.7
 SC.view_layers[0].material_override=clay;render(ROOT/'clay.png',1920,1080,24);SC.view_layers[0].material_override=None
 meta=export()
 # Prove pivots: every turret +30 degrees traverse, every barrel +30 elevation.
 original={name:tuple(bpy.data.objects[name].rotation_euler) for name in MOVING}
 for name in MOVING:
  ob=bpy.data.objects[name];ob.rotation_euler[2 if name.startswith('Turret') else 0]+=math.radians(30)
 bpy.context.view_layer.update();render(QA/'motion-test.png',1280,720,20)
 for name,e in original.items():bpy.data.objects[name].rotation_euler=e
 bpy.context.view_layer.update();camera_view(cam);render(ROOT/'final.png')
 camera_view(cam,'side');render(ROOT/'side.png',1920,1080,28)
 camera_view(cam,'rear');render(QA/'rear.png',1280,720,24)
 camera_view(cam,'close');render(QA/'close.png',1280,720,24)
 camera_view(cam)
 tint=MATS[0].node_tree.nodes['FactionTint'];imgs=[]
 for i,(name,c) in enumerate(PAINTS):
  tint.inputs[2].default_value=(*c,1);p=QA/f'paint-{i}.png';render(p,640,360,16)
  im=bpy.data.images.load(str(p));arr=np.array(im.pixels[:],dtype=np.float32).reshape(360,640,4);imgs.append(arr)
 tint.inputs[2].default_value=(*PAINTS[0][1],1)
 grid=np.ones((720,1920,4),np.float32)
 for i,ar in enumerate(imgs):
  row=1-i//3;col=i%3;grid[row*360:(row+1)*360,col*640:(col+1)*640]=ar
 im=bpy.data.images.new('SixPaints',width=1920,height=720);im.pixels.foreach_set(grid.ravel());im.filepath_raw=str(ROOT/'paints.png');im.file_format='PNG';im.save()
 # Keep a source checkpoint remotely, while the self-contained script is the portable source of truth.
 bpy.ops.wm.save_as_mainfile(filepath=str(QA/'cruiser.blend'))
 (QA/'build-report.json').write_text(json.dumps({'elapsed_seconds':time.time()-START,'device':SC.cycles.device,'triangles':meta['triangles'],'moving_nodes_tested':list(MOVING),'bake_engine':'Cycles','bake_samples':8,'source_ids':['metal_plate','rusty_metal_04']},indent=2))
 log('COMPLETE')
if __name__=='__main__':main()

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/bin/bash -lc 'node /tmp/heavy-cruiser-naval-check/capture.cjs' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 6830ms:
{
  "renderer": "WebKit WebGL",
  "triangles": 169824,
  "meshes": 68,
  "bounds": {
    "min": [
      -35.000008099371,
      -30.808318200627124,
      -225
    ],
    "max": [
      35.000008099371,
      59.19168472290039,
      225
    ]
  },
  "calls": 69,
  "errors": []
}

codex
The visual review caught a missing support beneath the raised forward turret. I’m adding that deckhouse and strengthening the stern armour, missile housings, and engine rims. I’m also reducing export overhead so these details fit the file budget.
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/bin/bash -lc "scp gex44:/root/fal-author/heavy-cruiser-naval-v1/clay.png qa/clay-r2.png
python3 - <<'PY'
from pathlib import Path
p=Path('build_heavy-cruiser-naval.py');s=p.read_text()
s=s.replace(\"bm=bmesh.new();bm.from_mesh(mesh);bmesh.ops.triangulate(bm,faces=list(bm.faces))\", \"bm=bmesh.new();bm.from_mesh(mesh);bmesh.ops.dissolve_degenerate(bm,dist=1e-6,edges=list(bm.edges))\")
s=s.replace(\"brick.inputs['Brick Width'].default_value=.5; brick.inputs['Row Height'].default_value=.25\", \"brick.inputs['Brick Width'].default_value=1.0; brick.inputs['Row Height'].default_value=.25\")
s=s.replace(\"'engine':(.035,.46,1.0)\",\"'engine':(.12,.72,1.0)\").replace(\"2.5 if kind=='engine'\", \"3.5 if kind=='engine'\")
s=s.replace(\"def cyl(self,a,b,r,mat=1,n=16,r2=None)\",\"def cyl(self,a,b,r,mat=1,n=12,r2=None)\")
s=s.replace(\" H.loft([(27.5,16,29,14,4)\",\" # Continuous raised forecastle carries the superfiring B turret into the citadel.\\n H.loft([(17.5,19,35,-40,4),(26.7,16.5,29,-39,3),(28.1,15.4,27,-39,3)],0,.3)\\n for sign in [-1,1]:\\n  H.box((sign*16.7,-42,23),(.5,35,4),2,.12)\\n  for y in [-55,-46,-37,-28]:H.box((sign*17.05,y,23),(.4,.7,3.8),1,.1)\\n H.loft([(27.5,16,29,14,4)\")
s=s.replace(\"   H.box((sign*27.5,y,1.1),(9,18,12),0,.6)\",\"   H.loft([(-6,28,11,y,2),(1.2,33,11,y,2),(7,32,10,y,2)],0,.3)\") # below will change to individual mirrored sponsons, this would span hull but okay embed
s=s.replace(\"   for y in [cy-6,cy+6]:H.box((sign*20,y,21.3),(12.3,.65,2.8),0,.15)\",\"   for y in [cy-6,cy+6]:H.box((sign*20,y,21.3),(12.3,.65,2.8),0,.15)\\n   # Protective pod cheeks and transverse straps surround the exposed launcher tubes.\\n   for x in [13.6,26.5]:H.box((sign*x,cy,22.6),(.65,17.8,5),0,.15)\\n   H.box((sign*20,cy+8.2,22.4),(13,.75,5.1),0,.16)\\n   for row in [-1,1]:H.box((sign*20,cy+row*2.5,24.8),(13,.6,.7),2,.12)\")
s=s.replace(\"2,40)\",\"2,32)\")
s=s.replace(\"  H.cyl((x,211,z),(x,212,z),4.55,6,48)\",\"  # Eight separated refractory petals make the nozzle exit a thick mechanical assembly.\\n  for j in range(8):\\n   a=2*pi*j/8\\n   H.box((x+7.62*cos(a),218,z+7.62*sin(a)),(5.2,9,.48),2,.12,Matrix.Rotation(pi/2-a,3,'Y'))\\n  H.cyl((x,211,z),(x,212,z),4.55,6,48)\")
s=s.replace(\" # stern plumbing exposed between armored shoulders\", \" # Stepped stern cowling encloses the engine roots, leaving each complete nozzle exit exposed.\\n for sign in [-1,1]:\\n  H.box((sign*16.3,185,18.8),(19,20,2.7),0,.4,Matrix.Rotation(sign*.13,3,'Y'))\\n  H.box((sign*27.2,185,-2),(2.2,22,22),0,.35)\\n  H.box((sign*14,185,-24),(19,18,2),2,.3)\\n # stern plumbing exposed between armored shoulders\")
s=s.replace(\"export_jpeg_quality=88\", \"export_jpeg_quality=82\")
s=s.replace(\" log('GLB bytes '+str(path.stat().st_size))\", \" log('GLB bytes '+str(path.stat().st_size))\")
p.write_text(s)
print('Refined structural supports, engine cowling and material tiles.')
PY" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 950ms:
Refined structural supports, engine cowling and material tiles.

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exec
/bin/bash -lc "python3 - <<'PY'
from pathlib import Path
p=Path('build_heavy-cruiser-naval.py');s=p.read_text()
s=s.replace(\"   H.loft([(-6,28,11,y,2),(1.2,33,11,y,2),(7,32,10,y,2)],0,.3)\",\"   start=len(H.v)\\n   H.loft([(-6,2.5,10,y,1),(1.2,5.8,11,y,2),(7,5,10,y,2)],0,.3)\\n   H.v[start:]=[(x+sign*28.5,yy,z) for x,yy,z in H.v[start:]]\")
# Avoid arbitrary projecting bow patches: plate facets follow the hull width profile at either edge.
a=s.index('  for j,(y,w,z) in enumerate(');b=s.index('  # Upper shoulder access-panel strips',a)
s=s[:a]+'''  for ya,yb,wa,wb in [(-192,-173,11.8,16.1),(-170,-150,16.8,20.4),(-147,-127,21,25.1),(-123,-101,25.5,27.4),(-98,-83,27.5,28.3)]:
   vs=[(sign*(wa+.17),ya,-13),(sign*(wb+.17),yb,-13),(sign*(wb+.17),yb,2),(sign*(wa+.17),ya,2),(sign*(wa-.32),ya,-13),(sign*(wb-.32),yb,-13),(sign*(wb-.32),yb,2),(sign*(wa-.32),ya,2)]
   H.add(vs,[(0,1,2,3),(4,7,6,5),(0,4,5,1),(3,2,6,7),(0,3,7,4),(1,5,6,2)],0,.12)
''' +s[b:]
p.write_text(s)
PY
python3 -m py_compile build_heavy-cruiser-naval.py
scp build_heavy-cruiser-naval.py gex44:/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py
ssh gex44 /root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py > /tmp/heavy-cruiser-naval-check/build-r2.log 2>&1" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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exec
/bin/bash -lc 'tail -n 8 /tmp/heavy-cruiser-naval-check/build-r2.log
cat /tmp/heavy-cruiser-naval-check/capture.cjs
cat /tmp/heavy-cruiser-naval-check/index.html' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
CRUISER 1.7 Baked Paint
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
CRUISER 3.5 Baked Metal
const {chromium}=require('playwright');(async()=>{const b=await chromium.launch({executablePath:'/home/claude-agent/.cache/ms-playwright/chromium-1223/chrome-linux/chrome',headless:true,args:['--no-sandbox','--use-angle=swiftshader','--enable-unsafe-swiftshader']});const p=await b.newPage({viewport:{width:1600,height:900}});const errors=[];p.on('pageerror',e=>errors.push(String(e)));await p.goto('http://127.0.0.1:8839');await p.waitForFunction(()=>window.ready,{timeout:120000});await p.screenshot({path:process.argv[2]});console.log(JSON.stringify({...await p.evaluate(()=>window.result),errors},null,2));await b.close()})()
<html><head><style>body{margin:0;background:#03060b}canvas{display:block}</style><script type="importmap">{"imports":{"three":"/node_modules/three/build/three.module.js","three/addons/":"/node_modules/three/examples/jsm/"}}</script></head><body><script type="module">
import * as T from 'three';import{GLTFLoader}from'three/addons/loaders/GLTFLoader.js';
const r=new T.WebGLRenderer({antialias:true,preserveDrawingBuffer:true});r.setSize(1600,900);r.setPixelRatio(1);r.outputColorSpace=T.SRGBColorSpace;r.toneMapping=T.ACESFilmicToneMapping;r.toneMappingExposure=1;document.body.appendChild(r.domElement);const s=new T.Scene();s.background=new T.Color(0x050912);const c=new T.PerspectiveCamera(34,1600/900,1,4000);c.position.set(370,260,530);c.lookAt(0,6,12);
function light(p,col,int){const l=new T.DirectionalLight(col,int);l.position.set(...p);s.add(l)}light([-150,300,200],0xfff3e4,3.6);light([200,90,70],0xa3c7ff,1.25);light([10,140,-200],0xa6ccff,2.8);s.add(new T.HemisphereLight(0x96b8db,0x2e3540,.8));
new GLTFLoader().load('/asset.glb',g=>{s.add(g.scene);g.scene.updateMatrixWorld(true);let tris=0,meshes=0;g.scene.traverse(o=>{if(o.isMesh){meshes++;tris+=(o.geometry.index?.count||o.geometry.attributes.position.count)/3}});const box=new T.Box3().setFromObject(g.scene);r.render(s,c);window.result={renderer:r.getContext().getParameter(r.getContext().RENDERER),triangles:tris,meshes,bounds:{min:box.min.toArray(),max:box.max.toArray()},calls:r.info.render.calls,errors:[]};window.ready=true;window.scene=s;window.camera=c;window.renderer=r;window.asset=g.scene},undefined,e=>{window.result={error:String(e)};window.ready=true});
</script></body></html>

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exec
/bin/bash -lc "tail -n 15 /tmp/heavy-cruiser-naval-check/build-r2.log
ls /tmp/alien-harvester-check/node_modules/gltf-validator 2>/dev/null
sed -n '1,120p' /tmp/heavy-cruiser-naval-check/validate.py" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
21:43:38 | INFO: Extracting primitive: Turret_5
21:43:38 | INFO: Primitives created: 3
21:43:38 | INFO: Extracting primitive: Gun_5
21:43:38 | INFO: Primitives created: 3
21:43:38 | INFO: Extracting primitive: Turret_7
21:43:38 | INFO: Primitives created: 3
21:43:38 | INFO: Extracting primitive: Gun_7
21:43:38 | INFO: Primitives created: 3
21:43:38 | INFO: Extracting primitive: Turret_10
21:43:38 | INFO: Primitives created: 3
21:43:38 | INFO: Extracting primitive: Gun_10
21:43:38 | INFO: Primitives created: 3
21:43:39 | INFO: Finished glTF 2.0 export in 0.774742841720581 s

CRUISER 22.5 GLB bytes 11728308
ISSUES.md
LICENSE
NOTICES
README.md
gltf_validator.dart.js
index.js
module.mjs
package.json
validation.schema.json
import json,struct,sys,io
from pathlib import Path
import numpy as np
from PIL import Image
p=Path(sys.argv[1]);b=p.read_bytes();jl=struct.unpack_from('<I',b,12)[0];g=json.loads(b[20:20+jl]);buf=b[28+jl:]
report={'bytes':len(b),'materials':len(g.get('materials',[])),'nodes':len(g.get('nodes',[])),'images':[],'problems':[]}
issues=report['problems']
for im in g['images']:
 v=g['bufferViews'][im['bufferView']];img=Image.open(io.BytesIO(buf[v.get('byteOffset',0):v.get('byteOffset',0)+v['byteLength']]))
 report['images'].append({'name':im.get('name'),'size':img.size,'bytes':v['byteLength']})
 if max(img.size)>1024:issues.append('Oversize texture '+str(im))
for m in g['materials']:
 if m['name']=='Paint':
  if m['pbrMetallicRoughness'].get('baseColorFactor')!=[.32,.34,.36,1]:issues.append('Paint factor')
  if 'baseColorTexture' not in m['pbrMetallicRoughness']:issues.append('Paint lost texture')
 if m['name']=='Glass' and m.get('alphaMode')!='BLEND':issues.append('Glass alpha')
 orm=m['pbrMetallicRoughness'].get('metallicRoughnessTexture')
 if orm:
  im=g['textures'][orm['index']]['source']
  if max(report['images'][im]['size'])>512:issues.append('ORM oversize '+m['name'])
names={n['name']:i for i,n in enumerate(g['nodes'])}
for n in ['Hull','Camera_Chase','Light_Nav_L','Light_Nav_R','Light_Beacon']+[f'Thruster_{i}' for i in range(1,7)]+[f'Muzzle_{i}' for i in range(1,25)]+[f'Hardpoint_{i}' for i in range(1,33)]:
 if n not in names:issues.append('Missing '+n)
parents={c:i for i,n in enumerate(g['nodes']) for c in n.get('children',[])}
for i in range(1,11):
 for kind in ['Turret','Gun']:
  n=g['nodes'][names[f'{kind}_{i}']]
  if 'mesh' not in n:issues.append('Moving mesh missing '+n['name'])
  if n.get('scale',[1,1,1])!=[1,1,1]:issues.append('Moving scale '+n['name'])
 if parents.get(names[f'Gun_{i}'])!=names[f'Turret_{i}']:issues.append('Gun parenting')
if len(b)>12*1024*1024:issues.append('File > 12 MiB')
if len(g['materials'])>9:issues.append('Material count')
if 'cameras' in g:issues.append('Cameras in export')
print(json.dumps(report,indent=2));sys.exit(bool(issues))

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/bin/bash -lc "ssh gex44 \"python3 - <<'PY'
import json
p='/root/fal-author/heavy-cruiser-naval-v1/nodes.json'
g=json.load(open(p));print('Triangles',g['triangles']);print('Bounds',g['bounding_box'])
PY\"
node /tmp/heavy-cruiser-naval-check/capture.cjs /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/runtime-r1.png > qa/runtime-r1.json" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 6796ms:
Triangles 196072
Bounds {'min': [-35.0, -30.80832, -225.23941], 'max': [35.0, 59.19168, 224.76059], 'size': [70.0, 90.0, 450.0]}

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exec
/bin/bash -lc "rg --files -g '"'!sheet.jpg'"' -g '"'!*.png'"' -g '"'!*.glb'"' -g '"'!*.jpg'"' -g '"'!*.blend*'"' .
tail -n 5 /tmp/heavy-cruiser-naval-check/build-r2.log" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
./NOTES.md
./qa/build-report.json
./qa/revision-1.py
./qa/contract.json
./qa/audit.json
./qa/runtime-r1.json
./started.txt
./nodes.json
./PROMPT.txt
./sheet_prompt.txt
./build_heavy-cruiser-naval.py
./job.json
CRUISER 26.5 Rendered motion-test.png
00:34.924  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/final.png'
CRUISER 34.4 Rendered final.png
00:43.202  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/side.png'
CRUISER 42.7 Rendered side.png

codex
The revised build fits at 196,072 triangles and 11.19 MiB. It now has a supported superfiring turret, deeper flank mounts, enclosed missile racks, and thicker engine petals. I’m checking the renders, exported materials, and weapon pivots in a separate glTF viewer.
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/bin/bash -lc 'scp gex44:/root/fal-author/heavy-cruiser-naval-v1/final.png qa/revision-2.png
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/side.png qa/side-r2.png
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/qa/close.png qa/close-r2.png
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/qa/rear.png qa/rear-r2.png' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc 'scp gex44:/root/fal-author/heavy-cruiser-naval-v1/heavy-cruiser-naval.glb heavy-cruiser-naval.glb
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/nodes.json nodes.json
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/textures/Paint_Base.png /tmp/heavy-cruiser-naval-check/Paint_Base.png
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/textures/Paint_Normal.png /tmp/heavy-cruiser-naval-check/Paint_Normal.png
python3 /home/claude-agent/.agents/skills/blender-game-assets/scripts/audit_glb.py heavy-cruiser-naval.glb --strict > qa/audit-r2.json
python3 /tmp/heavy-cruiser-naval-check/validate.py heavy-cruiser-naval.glb > qa/contract-r2.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "gemini -p 'Act as read-only independent visual critic for this production Blender cruiser. Open and inspect actual images sheet.jpg and qa/revision-2.png and qa/side-r2.png and qa/close-r2.png and qa/rear-r2.png in current working directory. Do not change any files or launch Blender jobs. Judge shape, proportions and material realism against sheet. Prior fixes: floating B turret now supported, bow raked, enclosed missile racks, stern petal cowling. Contract requires 3 triple mains above, 1 triple below, 6 twin flanks and six engines; 450m by70m by90m. Current196072tri/11.19MiB,8mats. Identify up to five remaining concrete defects with likely geometry/material fixes ranked by actual visual impact. Honest SHIP or REVISE. Pay special attention to painted surfaces looking flat and plastic, bridge front empty, side surfaces slab-like, bow artifacts. Keep advice actionable within remaining4000tri or replace existing details. Review only, no tool execution outside image/file reads.' --model forge:build-gemini-4 --effort high --print-timeout 240s > /tmp/heavy-cruiser-naval-check/critic-r2.txt 2>&1" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 4270ms:
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/bin/bash -lc 'cat qa/audit-r2.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
{
  "file": "heavy-cruiser-naval.glb",
  "sha256": "74d8ad22f9e16f6332e7e5d67b3f11054c0261f983dc8ba26e3d8c6cec57d61e",
  "bytes": 11728308,
  "primitive_count": 38,
  "material_count": 8,
  "embedded_images": 24,
  "external_uris": [],
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      "mesh": "Gun_1",
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      "triangles": 1584,
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    {
      "mesh": "Gun_1",
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    {
      "mesh": "Turret_1",
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      "mesh": "Turret_1",
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      "mesh": "Gun_4",
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      "mesh": "Gun_4",
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      "zero_area_triangles": 0,
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    {
      "mesh": "Gun_4",
      "primitive": 2,
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    {
      "mesh": "Turret_4",
      "primitive": 0,
      "triangles": 1256,
      "zero_area_triangles": 0,
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    {
      "mesh": "Turret_4",
      "primitive": 1,
      "triangles": 216,
      "zero_area_triangles": 0,
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    },
    {
      "mesh": "Turret_4",
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    },
    {
      "mesh": "Gun_5",
      "primitive": 0,
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    },
    {
      "mesh": "Gun_5",
      "primitive": 1,
      "triangles": 796,
      "zero_area_triangles": 0,
      "nonfinite_attribute_components": 0
    },
    {
      "mesh": "Gun_5",
      "primitive": 2,
      "triangles": 216,
      "zero_area_triangles": 0,
      "nonfinite_attribute_components": 0
    },
    {
      "mesh": "Turret_5",
      "primitive": 0,
      "triangles": 1256,
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    {
      "mesh": "Turret_5",
      "primitive": 1,
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    {
      "mesh": "Turret_5",
      "primitive": 2,
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      "zero_area_triangles": 0,
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    {
      "mesh": "Gun_7",
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      "zero_area_triangles": 0,
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    {
      "mesh": "Gun_7",
      "primitive": 1,
      "triangles": 796,
      "zero_area_triangles": 0,
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    {
      "mesh": "Gun_7",
      "primitive": 2,
      "triangles": 216,
      "zero_area_triangles": 0,
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    {
      "mesh": "Turret_7",
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    {
      "mesh": "Turret_7",
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    },
    {
      "mesh": "Turret_7",
      "primitive": 2,
      "triangles": 472,
      "zero_area_triangles": 0,
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    {
      "mesh": "Gun_10",
      "primitive": 0,
      "triangles": 1056,
      "zero_area_triangles": 0,
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    },
    {
      "mesh": "Gun_10",
      "primitive": 1,
      "triangles": 796,
      "zero_area_triangles": 0,
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    },
    {
      "mesh": "Gun_10",
      "primitive": 2,
      "triangles": 216,
      "zero_area_triangles": 0,
      "nonfinite_attribute_components": 0
    },
    {
      "mesh": "Turret_10",
      "primitive": 0,
      "triangles": 1256,
      "zero_area_triangles": 0,
      "nonfinite_attribute_components": 0
    },
    {
      "mesh": "Turret_10",
      "primitive": 1,
      "triangles": 216,
      "zero_area_triangles": 0,
      "nonfinite_attribute_components": 0
    },
    {
      "mesh": "Turret_10",
      "primitive": 2,
      "triangles": 472,
      "zero_area_triangles": 0,
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    },
    {
      "mesh": "Hull",
      "primitive": 0,
      "triangles": 17472,
      "zero_area_triangles": 0,
      "nonfinite_attribute_components": 0
    },
    {
      "mesh": "Hull",
      "primitive": 1,
      "triangles": 68788,
      "zero_area_triangles": 0,
      "nonfinite_attribute_components": 0
    },
    {
      "mesh": "Hull",
      "primitive": 2,
      "triangles": 48772,
      "zero_area_triangles": 0,
      "nonfinite_attribute_components": 0
    },
    {
      "mesh": "Hull",
      "primitive": 3,
      "triangles": 3968,
      "zero_area_triangles": 0,
      "nonfinite_attribute_components": 0
    },
    {
      "mesh": "Hull",
      "primitive": 4,
      "triangles": 440,
      "zero_area_triangles": 0,
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    },
    {
      "mesh": "Hull",
      "primitive": 5,
      "triangles": 220,
      "zero_area_triangles": 0,
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    {
      "mesh": "Hull",
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    {
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  ],
  "duplicate_primitives": [],
  "note": "Mesh-local counts, before node transforms/instances. Degenerate threshold: cross-product magnitude < 1e-12 in asset units squared. Not a source-topology or visual-quality verdict.",
  "triangles": 174100,
  "zero_area_triangles": 0,
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  "findings": []
}

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/bin/bash -lc 'scp gex44:/root/fal-author/heavy-cruiser-naval-v1/textures/rusty_metal_04_diff_1k.jpg /tmp/heavy-cruiser-naval-check/rust.jpg
cat /tmp/heavy-cruiser-naval-check/critic-r2.txt' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 848ms:
**Verdict: REVISE**

The overall silhouette, dimensions (450m x 70m x 90m), weapon count (3 dorsal triple mains, 1 ventral triple, 6 flank twins), raked bow, B-turret pedestal, and 6-nozzle petal stern are in place. However, comparing [revision-2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/revision-2.png), [side-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/side-r2.png), [close-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close-r2.png), and [rear-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear-r2.png) against [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg) shows five high-impact visual defects that prevent shipping. All fixes fit easily within the remaining **3,928-triangle budget** (196,072 / 200,000 tris) by replacing low-value detail.

---

### Top 5 Remaining Defects (Ranked by Visual Impact)

| Rank | Defect | Evidence in Renders vs. [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg) | Actionable Geometry / Material Fix | Tri Cost |
| :--- | :--- | :--- | :--- | :--- |
| **1** | **Flat, plastic hull paint and broken smooth-shading normals** | In [close-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close-r2.png) and [side-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/side-r2.png), the grey hull shader has zero surface breakup or roughness contrast. Worse, smooth shading across unbeveled long triangles
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/bin/bash -lc "cat > /tmp/heavy-cruiser-naval-check/khronos.cjs <<'JS'
const fs=require('fs');const v=require('gltf-validator');v.validateBytes(new Uint8Array(fs.readFileSync(process.argv[2])),{maxIssues:100}).then(r=>console.log(JSON.stringify(r,null,2)));
JS
node /tmp/heavy-cruiser-naval-check/khronos.cjs heavy-cruiser-naval.glb > qa/khronos-r2.json
node /tmp/heavy-cruiser-naval-check/capture.cjs /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/runtime-r2.png > qa/runtime-r2.json" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 6694ms:
 succeeded in 98133ms:
codex
The export audit is clean, but the close view still looks too uniform. I’m refining the plate texture, breaking up the broad armour surfaces, and moving the key light onto the visible flank so the materials and construction details read clearly.
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/bin/bash -lc "cat /tmp/heavy-cruiser-naval-check/critic-r2.txt
rg -n 'Glare|compositor|Fog|FOG_GLOW' /tmp/alien-harvester-check/compositor-probe.py /tmp/alien-harvester-check/build-v*.py | head -n 30" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
**Verdict: REVISE**

The overall silhouette, dimensions (450m x 70m x 90m), weapon count (3 dorsal triple mains, 1 ventral triple, 6 flank twins), raked bow, B-turret pedestal, and 6-nozzle petal stern are in place. However, comparing [revision-2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/revision-2.png), [side-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/side-r2.png), [close-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close-r2.png), and [rear-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear-r2.png) against [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg) shows five high-impact visual defects that prevent shipping. All fixes fit easily within the remaining **3,928-triangle budget** (196,072 / 200,000 tris) by replacing low-value detail.

---

### Top 5 Remaining Defects (Ranked by Visual Impact)

| Rank | Defect | Evidence in Renders vs. [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg) | Actionable Geometry / Material Fix | Tri Cost |
| :--- | :--- | :--- | :--- | :--- |
| **1** | **Flat, plastic hull paint and broken smooth-shading normals** | In [close-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close-r2.png) and [side-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/side-r2.png), the grey hull shader has zero surface breakup or roughness contrast. Worse, smooth shading across unbeveled long triangles creates dark diagonal sawtooth smears along the upper hull edge beneath the turrets and pillowy shading on the B-turret pedestal. | **Material + Normals:** Enable `Harden Normals` on bevels or add a `Weighted Normal` modifier with sharp edges at >30 deg. In the hull paint shader, mix two procedural noise/voronoi scales into Roughness (0.45 to 0.72) and subtle Bump (plate seams + micro-grain), and raise Metallic slightly (0.15 to 0.25) so light catches armor facets instead of reading like uniform toy plastic. | **0 tris** |
| **2** | **Bridge front is a giant blank sloped slab** | In [close-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close-r2.png) and [revision-2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/revision-2.png), the lower bridge face behind B-turret is a huge, featureless light-grey trapezoid ramp. In [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg), the bridge rises in stepped armored tiers with horizontal viewport slits, setback ledges, and a forward sensor block. | **Geometry:** Replace the single sloped glacis face with 2 stepped armored tiers, inset horizontal dark glass/armored slit recesses across the front face, add 4 vertical structural ribs, and mount a central rangefinder box above the lower tier. | **+450 tris** |
| **3** | **Slab-like midships walls, flat door boxes, and weak flank sponsons** | In [side-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/side-r2.png) and [close-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close-r2.png), the hull side is a flat vertical wall with protruding rectangular double-door boxes and thin horizontal strips. Flank turrets hang on small brackets, and missile pods in [rear-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear-r2.png) look like open trays of white pins instead of horizontal armored launch pods. | **Geometry:** Delete the repetitive thin horizontal ladder strips and upward pin-balls in the missile trays (saves ~1,500 tris). Extrude a continuous, bevelled mid-hull armor belt that flares out into muscular outrigger sponsons for the 6 flank turrets (matching the front/rear profiles in [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg)). Recess the side bays inward between thick vertical armor buttresses, and cap the missile boxes with hooded forward/side launch tubes. | **Net +800 tris** (after replacing pins/strips) |
| **4** | **Bow cheek pinching artifacts and pasted rectangular blocks** | In [side-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/side-r2.png) (left third), the bow side shows harsh diagonal triangulation creases and 5 flat rectangular blocks stuck onto the lower hull. [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg) shows a clean, sharp longitudinal chine ridge running from the swept bow ram back to midships, with a deep dark vertical intake trough at the nose tip. | **Geometry:** Remove the 5 pasted lower-bow rectangular blocks and the toy-like T-pegs on the foredeck (saves ~400 tris). Retopologize the bow cheek into clean planar quads split by a crisp horizontal chine crease, and inset the vertical nose ram trough deeper with dark bare-metal interior louvers. | **Net +200 tris** |
| **5** | **Undersized ventral triple turret and dim engine glow** | In [side-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/side-r2.png), the bottom triple turret is less than half the size of the dorsal main turrets and lacks its stepped barbette housing. In [rear-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear-r2.png) and [revision-2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/revision-2.png), the 6 engine throats look like dull painted blue discs inside a boxy rectangular stern block. | **Geometry + Material:** Instance/scale the full-size dorsal main turret + stepped barbette onto the ventral mount to match [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg). Chamfer the outer corners of the stern engine block so it tapers into the 6 nozzles, and increase `ENGINE GLOW` emission strength (8 to 15x with a white-cyan center falloff) plus heat-scorched metal darkening on the nozzle petals. | **+350 tris** |

**Total estimated budget impact:** **+1,800 tris net** (~197,872 tris total, safely under the 200,000-tri cap).

---

0. **Blocked on you**: nothing.
1. **What you changed**: Nothing; this was a read-only visual inspection of the five reference and QA render images.
2. **How you know it works**: Inspected [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg), [revision-2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/revision-2.png), [side-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/side-r2.png), [close-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close-r2.png), and [rear-r2.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear-r2.png) directly.
3. **What would break if you were wrong**: Shipping Revision 2 as-is would pass automated geometry/count gates but fail visual quality due to the blank bridge ramp, diagonal normal smears on the hull, slab-sided midships, and miniature ventral main turret.
4. **What you did NOT do**: Did not modify any files, inspect the `.blend` or `.glb` binary directly, or launch any Blender jobs, per your read-only constraint.
/tmp/alien-harvester-check/build-v4.py:689:rl=comp.nodes.new('CompositorNodeRLayers');glare=comp.nodes.new('CompositorNodeGlare');glare.inputs['Type'].default_value='Fog Glow';glare.inputs['Quality'].default_value='High';glare.inputs['Threshold'].default_value=1.1;glare.inputs['Strength'].default_value=.20;glare.inputs['Size'].default_value=.22
/tmp/alien-harvester-check/build-v5.py:699:rl=comp.nodes.new('CompositorNodeRLayers');glare=comp.nodes.new('CompositorNodeGlare');glare.inputs['Type'].default_value='Fog Glow';glare.inputs['Quality'].default_value='High';glare.inputs['Threshold'].default_value=1.1;glare.inputs['Strength'].default_value=.20;glare.inputs['Size'].default_value=.22
/tmp/alien-harvester-check/compositor-probe.py:5:g=n.nodes.new('CompositorNodeGlare')
/tmp/alien-harvester-check/build-v3.py:676:rl=comp.nodes.new('CompositorNodeRLayers');glare=comp.nodes.new('CompositorNodeGlare');glare.inputs['Type'].default_value='Fog Glow';glare.inputs['Quality'].default_value='High';glare.inputs['Threshold'].default_value=1.1;glare.inputs['Strength'].default_value=.20;glare.inputs['Size'].default_value=.22

hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
exec
/bin/bash -lc "python3 - <<'PY'
import json
x=json.load(open('qa/khronos-r2.json'));print(x['issues'])
PY" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
{'numErrors': 0, 'numWarnings': 38, 'numInfos': 62, 'numHints': 0, 'messages': [{'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/0/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/0/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/0/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/1/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/1/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/1/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/2/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/2/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/2/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/3/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/3/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/3/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/4/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/4/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/4/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/5/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/5/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/5/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/6/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/6/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/6/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/7/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/7/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/7/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/8/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/8/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/8/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/9/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/9/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/9/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/10/primitives/0/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/10/primitives/1/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/10/primitives/2/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/10/primitives/3/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/10/primitives/4/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/10/primitives/5/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/10/primitives/6/material'}, {'code': 'MESH_PRIMITIVE_GENERATED_TANGENT_SPACE', 'message': 'Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.', 'severity': 1, 'pointer': '/meshes/10/primitives/7/material'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/0'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/1'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/2'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/3'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/4'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/5'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/6'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/7'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/8'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/9'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/10'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/11'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/12'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/13'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/14'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/15'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/16'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/17'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/18'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/19'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/20'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/21'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/22'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/23'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/24'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/25'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/26'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/27'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/28'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/29'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/30'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/31'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/32'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/33'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/34'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/35'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/36'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/37'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/38'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/39'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/40'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/41'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/42'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/43'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/44'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/47'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/48'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/49'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/52'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/53'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/54'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/57'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/58'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/59'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/62'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/63'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/66'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/67'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/70'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/71'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/74'}, {'code': 'NODE_EMPTY', 'message': 'Empty node encountered.', 'severity': 2, 'pointer': '/nodes/75'}], 'truncated': True}

hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
exec
/bin/bash -lc "cp build_heavy-cruiser-naval.py qa/revision-2.py
cat > /tmp/heavy-cruiser-naval-check/refine3.py <<'PY'
from pathlib import Path
p=Path('build_heavy-cruiser-naval.py');s=p.read_text()
# Paint uses a genuinely neutral near-white tile with high-frequency physical wear and a broader patina.
s=s.replace(\"normalize=mathn('MULTIPLY_ADD',bw.outputs[0],.62); normalize.node.inputs[2].default_value=.46\", \"normalize=mathn('MULTIPLY_ADD',bw.outputs[0],.10); normalize.node.inputs[2].default_value=.9\")
s=s.replace(\"rough=.43; metal=.58\", \"rough=.48; metal=.45\")
s=s.replace(\"wear.color_ramp.elements[0].color=(.29,.29,.29,1)\",\"wear.color_ramp.elements[0].color=(.38,.38,.38,1)\")
s=s.replace(\"base=mix(base,wear.outputs[0],.24,'MULTIPLY')\", \"base=mix(base,wear.outputs[0],.68,'MULTIPLY')\")
s=s.replace(\"nm.inputs['Strength'].default_value=.22\", \"nm.inputs['Strength'].default_value=.16\")
s=s.replace(\"bump.inputs['Strength'].default_value=.22; bump.inputs['Distance'].default_value=.045\", \"bump.inputs['Strength'].default_value=.15; bump.inputs['Distance'].default_value=.008\")
s=s.replace(\"b2.inputs['Strength'].default_value=.38; b2.inputs['Distance'].default_value=.09\", \"b2.inputs['Strength'].default_value=.5; b2.inputs['Distance'].default_value=.055\")
s=s.replace(\"roughout=mathn('MULTIPLY_ADD',sep.outputs['Green'],.18); roughout.node.inputs[2].default_value=rough-.09\", \"roughout=mathn('MULTIPLY_ADD',grime.outputs['Fac'],.32); roughout.node.inputs[2].default_value=rough-.16\")
# Bake colored lamp atlas, keeping all windows and navigation beacons in one material.
s=s.replace(\"roughout=None; aoout=None\", \"\"\"roughout=None; aoout=None
  if kind=='lamp':
   sx=node(nt,'ShaderNodeSeparateXYZ');L(uv.outputs['UV'],sx.inputs[0])
   palette=node(nt,'ShaderNodeValToRGB');palette.color_ramp.interpolation='CONSTANT'
   palette.color_ramp.elements[0].color=(.7,.85,1,1)
   palette.color_ramp.elements[1].position=.667;palette.color_ramp.elements[1].color=(.015,1,.08,1)
   e=palette.color_ramp.elements.new(.333);e.color=(1,.018,.008,1)
   L(sx.outputs[0],palette.inputs[0]);base=palette.outputs['Color']
   L(base,bs.inputs['Base Color'])\"\"\")
s=s.replace(\"3.5 if kind=='engine'\", \"4.0 if kind=='engine'\")
s=s.replace(\"scale=8 if p.material_index in [0,4] else 3.2\", \"scale=12 if p.material_index==0 else (8 if p.material_index==4 else 3.2)\")
s=s.replace(\"uv.data[li].uv=(a/scale,b/scale)\", \"uv.data[li].uv=(a/scale,b/scale)\\n    if p.material_index==7:\\n     avgx=sum(mesh.vertices[i].co.x for i in p.vertices)/len(p.vertices)\\n     uv.data[li].uv=((.5 if avgx>33 else .84) if abs(avgx)>33 else .16,.5)\")
# Sharper naval cross section and a single clean, faceted cheek shell on either side.
s=s.replace(\"top-7),(w,y+8*rake,bot+11)\",\"top-11),(w,y+8*rake,bot+17)\")
s=s.replace(\"bot+11),(-w,y+14*rake,top-7)\",\"bot+17),(-w,y+14*rake,top-11)\")
a=s.index('  vs=[(sign*x,y,z) for x,y,z in [');b=s.index('  # layered lower armour rail',a)
s=s[:a]+'''  rings=[(-225,4.8,-19,-22),(-207,8.8,14,-22),(-176,16,16.5,-22),(-133,24.2,16,-22.5),(-82,28.3,11,-20)]
  vs=[]
  for y,w,top,bot in rings:
   vs += [(sign*(w-1.6),y,top),(sign*w,y,top-3),(sign*w,y,bot+8),(sign*(w-1.6),y,bot),(sign*(w-2.3),y,bot+1),(sign*(w-2.3),y,top-1)]
  fs=[tuple(reversed(range(6))),tuple(range(len(vs)-6,len(vs)))]
  for j in range(len(rings)-1):
   for k in range(6):fs.append((j*6+k,j*6+(k+1)%6,(j+1)*6+(k+1)%6,(j+1)*6+k))
  H.add(vs,fs,0,.24)
''' +s[b:]
s=s.replace(\"sign*(w+.12)\",\"sign*(w*.84+.12)\").replace(\"sign*(ww+.12)\",\"sign*(ww*.84+.12)\").replace(\"sign*(w-.4)\",\"sign*(w*.84-.4)\").replace(\"sign*(ww-.4)\",\"sign*(ww*.84-.4)\")
# two armored bridge terraces, each with its own visible horizontal face and sensor slit.
s=s.replace(\"H.loft([(27.5,16,29,14,4),(39,12.5,22,19,3)],0,.45)\",\"\"\"H.loft([(27.5,16,29,14,3),(32.5,14.6,24,16,2.5)],0,.23)
 H.loft([(32.3,13.9,21.8,19,2.6),(39,12.5,20,20,2.5)],0,.25)
 H.box((0,-8.3,30.5),(20,.7,1.15),2,.13)
 H.box((0,-8.72,30.6),(16,.16,.36),5,.035)
 H.box((0,-3.5,34.4),(14,.65,.8),2,.12)
 H.box((0,-3.88,34.5),(11,.16,.25),5,.025)
 H.box((0,-7.6,32.5),(5,3.2,1.1),3,.18)
 for x in [-9,9]:
  H.box((x,-.6,35.8),(.7,1.1,6.1),1,.12,Matrix.Rotation(-.28,3,'X'))\"\"\")
# Hull width helpers place armor channels in physical contact with the underlying skin.
s=s.replace(\" for s in [-1,1]:\\n  # flank longitudinal recesses\", \"\"\" def width_at(y):
  for a,b in zip(stations,stations[1:]):
   if a[0]<=y<=b[0]:return a[1]+(b[1]-a[1])*(y-a[0])/(b[0]-a[0])
  return stations[-1][1]
 for s in [-1,1]:
  # flank longitudinal recesses\"\"\")
s=s.replace(\"x=s*(27 if y<0 else 28)\",\"x=s*(width_at(y)+.15)\")
s=s.replace(\"ang=Matrix.Rotation(s*math.radians(31),3,'Y')\", \"w=width_at(y);ang=Matrix.Rotation(s*math.radians(58),3,'Y')\")
s=s.replace(\"H.box((s*(w-1),y,12.4),(5.6,30,.7)\",\"H.box((s*(w*.885),y,12.4),(8,29,.55)\")
s=s.replace(\"H.box((s*(w-1),y+13.2,12.9),(4.8,.45,.2)\",\"H.box((s*(w*.885),y+13.2,12.85),(7.7,.38,.16)\")
# Full-size ventral main; all barrels share the exact same physical form.
s=s.replace(\"1 if not under else .84,3,under\", \"1,3,under\")
# Launcher cells are horizontal armored tubes in two stacked rows, embedded in the racks.
s=s.replace(\"x=sign*(16+col*2.65); y=cy-5+row*6\", \"x=sign*(16+col*2.65); y=cy; zz=22+row*2.5\")
s=s.replace(\"(x,y+3,21.1),(x,y-3,24.3)\",\"(x,y+7,zz),(x,y-7,zz)\")
s=s.replace(\"(x,y-2.8,24.2),(x,y-3.25,24.45)\",\"(x,y-6.9,zz),(x,y-7.35,zz)\")
s=s.replace(\"(x,y-3.26,24.45),(x,y-3.38,24.52)\",\"(x,y-7.36,zz),(x,y-7.48,zz)\")
s=s.replace(\"(x,y-3.4,24.55)\",\"(x,y-7.5,zz)\")
s=s.replace(\"for row in [-1,1]:H.box((sign*20,cy+row*2.5,24.8),(13,.6,.7),2,.12)\",\"for row in [-1,1]:H.box((sign*20,cy+row*4.5,25.8),(13,.7,.5),2,.12)\\n   H.box((sign*20,cy+2,26.1),(13,12.5,.55),0,.15)\")
# Curved heat shield petals have actual thickness and do not intersect the nozzle skin.
a=s.index('  # Eight separated refractory petals');b=s.index('  H.cyl((x,211,z)',a)
s=s[:a]+'''  # Eight curved refractory petals, with open seams and backed mechanical flanges.
  for j in range(8):
   vv=[];half=pi/8-.028
   for yy,rr in [(211,8.0),(224,8.0),(211,8.32),(224,8.32)]:
    for k in range(4):
     aa=2*pi*j/8-half+2*half*k/3;vv.append((x+rr*cos(aa),yy,z+rr*sin(aa)))
   ff=[]
   for k in range(3):ff += [(k,k+1,5+k,4+k),(8+k,12+k,13+k,9+k),(k,8+k,9+k,k+1),(4+k,5+k,13+k,12+k)]
   ff += [(0,4,12,8),(3,11,15,7)]
   H.add(vv,ff,2,.045,True)
''' +s[b:]
# Remove visually noisy stuck-on rectangles at the bow; the material has the plate seams.
a=s.index('  # Forebody panel courses');b=s.index('  # Upper shoulder access-panel strips',a)
s=s[:a]+s[b:]
# Small ribs need less tessellation. Engine bells and gun bores retain 48/24 segments.
s=s.replace(\"p.cyl(a,b,r,mat,10)\",\"p.cyl(a,b,r,mat,8)\")
s=s.replace(\"radius*1.06,2,32)\",\"radius*1.06,2,24)\").replace(\"radius,1,32)\",\"radius,1,24)\")
# Front lighting reveals the visible port side, plus subtle photographed glow.
s=s.replace(\"sun('Key',(-150,-200,300),2.8\", \"sun('Key',(170,-240,330),4.1\")
s=s.replace(\"sun('CoolFill',(200,-70,90),.85\", \"sun('CoolFill',(-200,-70,90),1.15\")
s=s.replace(\"def render(path,w=1920,h=1080,samples=40):\", \"def render(path,w=1920,h=1080,samples=64):\")
s=s.replace(\"SC.camera=cam\\n camd.type\", \"SC.camera=cam\\n # Blender 5 compositor socket API; glow is restrained and only affects emissive highlights.\\n comp=bpy.data.node_groups.new('Cruiser_Compositing','CompositorNodeTree');SC.compositing_node_group=comp\\n comp.interface.new_socket(name='Image',in_out='OUTPUT',socket_type='NodeSocketColor')\\n rl=comp.nodes.new('CompositorNodeRLayers');glare=comp.nodes.new('CompositorNodeGlare')\\n glare.inputs['Type'].default_value='Fog Glow';glare.inputs['Quality'].default_value='High';glare.inputs['Threshold'].default_value=1.3;glare.inputs['Strength'].default_value=.16;glare.inputs['Size'].default_value=.2\\n output=comp.nodes.new('NodeGroupOutput');comp.links.new(rl.outputs['Image'],glare.inputs['Image']);comp.links.new(glare.outputs['Image'],output.inputs['Image'])\\n camd.type\")
s=s.replace(\"12*1024*1024\", \"12_000_000\")
p.write_text(s)
print('Revision 3 refinement ready')
PY
python3 /tmp/heavy-cruiser-naval-check/refine3.py
python3 -m py_compile build_heavy-cruiser-naval.py
scp build_heavy-cruiser-naval.py gex44:/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py
ssh gex44 /root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py > /tmp/heavy-cruiser-naval-check/build-r3.log 2>&1" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "tail -n 12 /tmp/heavy-cruiser-naval-check/build-r3.log
sed -n '684,697p' /tmp/alien-harvester-check/build-v4.py
cat qa/runtime-r2.json" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
CRUISER 8.4 Baked Engines
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
CRUISER 9.2 Baked Lamps
CRUISER 11.0 Geometry components 74618 static faces
/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py:555: DeprecationWarning: 'World.use_nodes' is expected to be removed in Blender 6.0
  w=SC.world;w.use_nodes=True;n=w.node_tree.nodes;n.clear();L=w.node_tree.links.new
/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py:630: DeprecationWarning: 'Material.use_nodes' is expected to be removed in Blender 6.0
  clay=bpy.data.materials.new('QA_Clay');clay.use_nodes=True;clay.node_tree.nodes.get('Principled BSDF').inputs['Base Color'].default_value=(.35,.35,.35,1);clay.node_tree.nodes.get('Principled BSDF').inputs['Roughness'].default_value=.7
    return doc

doc=export();set_paint(PAINTS[0][1])
comp=bpy.data.node_groups.new('Photographic emissive halo','CompositorNodeTree');sc.compositing_node_group=comp
comp.interface.new_socket(name='Image',in_out='OUTPUT',socket_type='NodeSocketColor')
rl=comp.nodes.new('CompositorNodeRLayers');glare=comp.nodes.new('CompositorNodeGlare');glare.inputs['Type'].default_value='Fog Glow';glare.inputs['Quality'].default_value='High';glare.inputs['Threshold'].default_value=1.1;glare.inputs['Strength'].default_value=.20;glare.inputs['Size'].default_value=.22
co=comp.nodes.new('NodeGroupOutput');comp.links.new(rl.outputs['Image'],glare.inputs['Image']);comp.links.new(glare.outputs['Image'],co.inputs['Image'])

def game(v):return [round(v.x,5),round(v.z,5),round(-v.y,5)]
points=[o.matrix_world@v.co for o in objs for v in o.data.vertices]
lo=[min(game(v)[k] for v in points) for k in range(3)];hi=[max(game(v)[k] for v in points) for k in range(3)]
nodeinfo={o.name:{'position':game(o.matrix_world.translation),'type':'mesh' if o.type=='MESH' else 'empty','parent':o.parent.name if o.parent else None} for o in asset}
meta={'asset':'alien-harvester','units':'metres','forward':'+Z','up':'+Y','left':'+X','origin':'Hull centre of mass approximation','nodes':nodeinfo,'bounding_box':{'min':lo,'max':hi,'size':[round(hi[k]-lo[k],4) for k in range(3)]},'axes':{o.name:[0,0,1] for o in objs[1:]},'paints':[{'name':n,'linear_rgb':c} for n,c in PAINTS],'triangles':tri,'materials':[m.name for m in MATS],'texture_world_repeat_metres':8,'bake':{'engine':'Cycles','device':'GPU','samples':16,'base_size':1024,'normal_sizes':[1024,512],'orm_size':512,'sources':PH_IDS},'checks':{'moving_transforms_applied':False,'pivot_rotation_degrees':30,'export_helpers':False}}
(OUT/'nodes.json').write_text(json.dumps(meta,indent=2))
{
  "renderer": "WebKit WebGL",
  "triangles": 196072,
  "meshes": 68,
  "bounds": {
    "min": [
      -35.00000289059832,
      -30.80831820221574,
      -225.23941040039062
    ],
    "max": [
      35.000002145799854,
      59.19168472290039,
      224.76058959960938
    ]
  },
  "calls": 69,
  "errors": []
}

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Revision 3 refinement ready

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/bin/bash -lc 'tail -n 10 /tmp/heavy-cruiser-naval-check/build-r3.log' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
  File "/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py", line 632, in main
    meta=export()
  File "/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py", line 623, in export
    assert 80000<=tris<=200000, ('Triangle budget',tris)
           ^^^^^^^^^^^^^^^^^^^
AssertionError: ('Triangle budget', 200360)

Error: script failed, file: '/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py', exiting.

Blender quit

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/bin/bash -lc "rg 'GLB bytes|Assertion|CRUISER' /tmp/heavy-cruiser-naval-check/build-r3.log | tail -n 8
python3 - <<'PY'
from pathlib import Path
p=Path('build_heavy-cruiser-naval.py');s=p.read_text()
a=s.index('   vv=[];half=pi/8-.028');b=s.index('  H.cyl((x,211,z)',a)
s=s[:a]+'''   vv=[];half=pi/8-.028
   profile=[(211,8.02),(224,8.02),(224,8.25),(223.92,8.32),(211.08,8.32),(211,8.25)]
   for yy,rr in profile:
    for k in range(5):
     aa=2*pi*j/8-half+2*half*k/4;vv.append((x+rr*cos(aa),yy,z+rr*sin(aa)))
   ff=[]
   for q in range(len(profile)):
    qq=(q+1)%len(profile)
    for k in range(4):ff.append((q*5+k,q*5+k+1,qq*5+k+1,qq*5+k))
   ff += [tuple(q*5 for q in range(len(profile))),tuple(q*5+4 for q in reversed(range(len(profile))))]
   H.add(vv,ff,2,0,True)
''' +s[b:]
p.write_text(s)
PY
scp build_heavy-cruiser-naval.py gex44:/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py
ssh gex44 /root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py > /tmp/heavy-cruiser-naval-check/build-r3.log 2>&1" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "python3 - <<'PY'
import json,struct
b=open('heavy-cruiser-naval.glb','rb').read();g=json.loads(b[20:20+struct.unpack_from('<I',b,12)[0]])
for n in g['nodes']:
 if n['name'] in ['Hull','Turret_1','Gun_1','Thruster_1','Camera_Chase','Turret_4','Gun_4']:
  print(n)
PY
rg 'CRUISER|Error' /tmp/heavy-cruiser-naval-check/build-r3.log | tail -n 6" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
{'name': 'Camera_Chase', 'translation': [0, 90.69693756103516, -310.3298645019531]}
{'name': 'Thruster_1', 'translation': [-11.841248512268066, 10.501749992370605, -225.23941040039062]}
{'children': [42, 43, 44], 'mesh': 0, 'name': 'Gun_1', 'translation': [0, 4.391641616821289, 7.407875061035156]}
{'children': [45], 'mesh': 1, 'name': 'Turret_1', 'translation': [0, 17.66203498840332, 105.11172485351562]}
{'children': [57, 58, 59], 'mesh': 2, 'name': 'Gun_4', 'translation': [0, 3.688978672027588, 6.222611904144287]}
{'children': [60], 'mesh': 3, 'name': 'Turret_4', 'rotation': [-1, 0, 0, 7.549790126404332e-08], 'translation': [0, -23.390262603759766, 29.03085708618164]}
{'children': [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 46, 51, 56, 61, 65, 69, 73, 77, 81, 85], 'mesh': 10, 'name': 'Hull'}

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/bin/bash -lc 'tail -n 5 /tmp/heavy-cruiser-naval-check/build-r3.log
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/final.png qa/revision-3.png
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/qa/close.png qa/close-r3.png
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/side.png qa/side-r3.png' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 2725ms:
CRUISER 4.6 Baked Dark
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CRUISER 6.0 Baked Weapons

codex
The rebuilt bow has cleaner facets, and the bridge now rises in two distinct tiers. The production checks show no degenerate triangles or missing textures. I’m finishing the navigation-light colours and confirming that each turret and gun rotates around its own pivot.
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/bin/bash -lc "tail -n 6 /tmp/heavy-cruiser-naval-check/build-r3.log
ssh gex44 \"python3 - <<'PY'
import json
x=json.load(open('/root/fal-author/heavy-cruiser-naval-v1/nodes.json'));print(x['triangles'])
PY\"" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 417ms:
00:52.852  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-1.png'
CRUISER 52.4 Rendered paint-1.png
00:54.525  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-2.png'
CRUISER 54.1 Rendered paint-2.png
00:56.237  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-3.png'
CRUISER 55.8 Rendered paint-3.png
190952

 succeeded in 96546ms:
CRUISER 7.0 Baked Deck
CRUISER 7.7 Baked Glass
CRUISER 8.4 Baked Engines
CRUISER 9.2 Baked Lamps
CRUISER 11.0 Geometry components 74618 static faces
CRUISER 18.1 Rendered clay.png
CRUISER 18.8 GLB bytes 11025972
AssertionError: ('Triangle budget', 200360)

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/bin/bash -lc 'scp gex44:/root/fal-author/heavy-cruiser-naval-v1/final.png qa/revision-3.png
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/qa/close.png qa/close-r3.png
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/side.png qa/side-r3.png
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/qa/rear.png qa/rear-r3.png' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "cat > /tmp/heavy-cruiser-naval-check/finish-refine.py <<'PY'
from pathlib import Path
p=Path('build_heavy-cruiser-naval.py');s=p.read_text()
s=s.replace(\"['paint','metal','dark','weapon','deck']\",\"['paint','metal','dark','weapon','deck','trim']\")
s=s.replace(\"  else:\\n   base=mix(normalize,brick.outputs['Color'],.65\", \"  elif kind=='trim':\\n   base=mix(photo.outputs['Color'],(.25,.28,.31),.45); rough=.42; metal=.85\\n  else:\\n   base=mix(normalize,brick.outputs['Color'],.65\")
s=s.replace(\"  L(base,bs.inputs['Base Color'])\\n  nm=\", \"\"\"  if kind=='trim':
   # A tiled vent/armour trim: 4 metres across, 1 metre tall; no unique hull atlas.
   wave=node(nt,'ShaderNodeTexWave');wave.bands_direction='Y';L(uv.outputs['UV'],wave.inputs['Vector']);wave.inputs['Scale'].default_value=5
   crest=mathn('GREATER_THAN',wave.outputs['Fac'],.35)
   trimcol=node(nt,'ShaderNodeMixRGB');L(crest,trimcol.inputs[0]);trimcol.inputs[1].default_value=(.008,.012,.017,1);L(base,trimcol.inputs[2]);base=trimcol.outputs[0]
  L(base,bs.inputs['Base Color'])
  nm=\"\"\")
s=s.replace(\"nm.inputs['Strength'].default_value=.16\", \"nm.inputs['Strength'].default_value=.08\")
s=s.replace(\"  sep=node(nt,'ShaderNodeSeparateColor');\", \"  if kind=='trim':\\n   bt=node(nt,'ShaderNodeBump');bt.inputs['Strength'].default_value=.6;bt.inputs['Distance'].default_value=.06;L(wave.outputs['Fac'],bt.inputs['Height']);L(bump.outputs[0],bt.inputs['Normal']);L(bt.outputs[0],bs.inputs['Normal'])\\n  sep=node(nt,'ShaderNodeSeparateColor');\")
s=s.replace(\"  if kind=='lamp':\", \"\"\"  if kind=='engine':
   offset=node(nt,'ShaderNodeVectorMath',operation='DISTANCE');L(uv.outputs['UV'],offset.inputs[0]);offset.inputs[1].default_value=(.5,.5,0)
   plasma=node(nt,'ShaderNodeValToRGB');plasma.color_ramp.elements[0].position=.08;plasma.color_ramp.elements[0].color=(.8,.95,1,1)
   plasma.color_ramp.elements[1].position=.52;plasma.color_ramp.elements[1].color=(.015,.26,1,1)
   e=plasma.color_ramp.elements.new(.34);e.color=(.08,.72,1,1);L(offset.outputs['Value'],plasma.inputs[0]);base=plasma.outputs[0];L(base,bs.inputs['Base Color'])
  if kind=='lamp':\"\"\")
s=s.replace(\"    if p.material_index==7:\", \"\"\"    if p.material_index==8:
     uv.data[li].uv=(a/4,b)
    if p.material_index==6:
     cx,cz=min([(-12,11),(12,11),(-21,-3),(21,-3),(-12,-17),(12,-17)],key=lambda xz:(co.x-xz[0])**2+(co.z-xz[1])**2)
     uv.data[li].uv=((co.x-cx)/10.6+.5,(co.z-cz)/10.6+.5)
    if p.material_index==7:\"\"\")
s=s.replace(\"(sign*w,y,bot+8),(sign*(w-1.6),y,bot)\",\"(sign*(w+1.9),y,(top+bot)*.5),(sign*(w-1.6),y,bot)\")
s=s.replace(\"  H.add(vs,fs,0,.24)\\n  # layered\", \"  H.add(vs,fs,0,.24)\\n  pipe(H,[(sign*(w+1.91),y,(top+bot)*.5) for y,w,top,bot in rings[1:]],.10,1)\\n  # layered\")
s=s.replace(\"((0,-29,-24.5),0,True)\",\"((0,-29,-24.5),pi,True)\")
# Metal vent trims, framed in the same fixed hull mesh, adding scale at docking and sensor recesses.
s=s.replace(\"  # cooling louvres on bridge sides\", \"  for y in [-7,75]:\\n   H.box((s*32.7,y,-6.5),(.12,7.4,1.4),8,.025)\\n  for y in [-41,18,104,141]:\\n   H.box((s*(width_at(y)+1.02),y,5.2),(.18,10.5,1.5),8,.04)\\n  # cooling louvres on bridge sides\")
s=s.replace(\"('Engines','engine'),('Lamps','lamp')\", \"('Engines','engine'),('Lamps','lamp'),('Trim','trim')\")
s=s.replace(\"'8 materials: Paint, Metal, Dark, Weapons, Deck, Glass (BLEND), Engines, Lamps;\", \"'9 materials: Paint, Metal, Dark, Weapons, Deck, Glass (BLEND), Engines, Lamps, Trim;\")
s=s.replace(\"shared world-scale UVs; JPEG\", \"shared world-scale UVs and 4 × 1 m vent trims; JPEG\")
# Environment reflections and a large daylight softbox, while camera rays see the dark space gradient.
s=s.replace(\"L(bg.outputs[0],out.inputs[0])\", \"\"\"ambient=node(w.node_tree,'ShaderNodeBackground');ambient.inputs['Color'].default_value=(.11,.14,.19,1);ambient.inputs['Strength'].default_value=.7
 lp=node(w.node_tree,'ShaderNodeLightPath');mixworld=node(w.node_tree,'ShaderNodeMixShader');L(lp.outputs['Is Camera Ray'],mixworld.inputs[0]);L(ambient.outputs[0],mixworld.inputs[1]);L(bg.outputs[0],mixworld.inputs[2]);L(mixworld.outputs[0],out.inputs[0])\"\"\")
s=s.replace(\" sun('LowerBounce',\", \" d=bpy.data.lights.new('Broad daylight reflection','AREA');d.energy=2500000;d.shape='RECTANGLE';d.size=190;d.size_y=280;o=bpy.data.objects.new('Broad daylight reflection',d);bpy.context.collection.objects.link(o);o.location=(160,-70,240);o.rotation_euler=(-o.location).to_track_quat('-Z','Y').to_euler()\\n sun('LowerBounce',\")
s=s.replace(\"for name in MOVING:\\n  ob=bpy.data.objects[name];ob.rotation_euler[2 if name.startswith('Turret') else 0]+=math.radians(30)\", \"\"\"for name in MOVING:
  ob=bpy.data.objects[name];local_axis='Z' if name.startswith('Turret') else 'X'
  ob.rotation_euler=(ob.rotation_euler.to_matrix() @ Matrix.Rotation(math.radians(30),3,local_axis)).to_euler()
  assert (ob.location-Vector(ASSEMBLIES[name].ob.location)).length<1e-7\"\"\")
s=s.replace(\"'coordinate_system':{'up'\", \"'origin':'Approximate centre of mass, middle of the main hull','texture_repeat_metres':{'Paint':12,'Metal':3.2,'Deck':8,'Trim':[4,1]},'coordinate_system':{'up'\")
p.write_text(s)
PY
python3 /tmp/heavy-cruiser-naval-check/finish-refine.py
python3 -m py_compile build_heavy-cruiser-naval.py
scp build_heavy-cruiser-naval.py gex44:/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py
ssh gex44 /root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py > /tmp/heavy-cruiser-naval-check/build-final.log 2>&1" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "tail -n 8 /tmp/heavy-cruiser-naval-check/build-final.log
cat /tmp/heavy-cruiser-naval-check/critic-r2.txt > qa/visual-review-r2.txt
python3 - <<'PY'
from pathlib import Path
p=Path('/tmp/heavy-cruiser-naval-check/index.html');s=p.read_text().replace('370,260,530','300,200,430').replace('[-150,300,200]','[170,330,240]').replace('[200,90,70]','[-200,90,70]')
p.write_text(s)
PY" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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exec
/bin/bash -lc "python3 - <<'PY'
from pathlib import Path
p=Path('build_heavy-cruiser-naval.py');s=p.read_text()
s=s.replace(\"  H.cyl((x,212.1,z)\",\"  H.tube((x,223.7,z),[(-.22,8.08),(.22,8.08),(.22,7.86),(-.22,7.86)],6,32)\\n  H.cyl((x,212.1,z)\")
s=s.replace(\" original={name:tuple(bpy.data.objects[name].rotation_euler) for name in MOVING}\",\" original={name:tuple(bpy.data.objects[name].rotation_euler) for name in MOVING}\\n local_positions={name:bpy.data.objects[name].location.copy() for name in MOVING}\")
s=s.replace(\"Vector(ASSEMBLIES[name].ob.location)\",\"local_positions[name]\")
p.write_text(s)
PY
cat > /tmp/heavy-cruiser-naval-check/runtime-check.cjs <<'JS'
const{chromium}=require('playwright');const path=require('path');(async()=>{
 const b=await chromium.launch({executablePath:'/home/claude-agent/.cache/ms-playwright/chromium-1223/chrome-linux/chrome',headless:true,args:['--no-sandbox','--use-angle=swiftshader','--enable-unsafe-swiftshader']});
 const p=await b.newPage({viewport:{width:1600,height:900}});const errors=[];p.on('pageerror',e=>errors.push(String(e)));await p.goto('http://127.0.0.1:8839');await p.waitForFunction(()=>window.ready,{timeout:120000});
 const dest=process.argv[2];await p.screenshot({path:path.join(dest,'runtime.png')});
 const report=await p.evaluate(async()=>{
  const T=await import('three');const result={...window.result,checks:[]};const find=n=>asset.getObjectByName(n);const before={};
  asset.traverse(o=>{if(/"'^Turret_|''^Gun_/.test(o.name))before[o.name]={p:o.position.clone(),q:o.quaternion.clone()}});
  let axesOK=true,muzzleOK=true,pivotsOK=true;
  for(let i=1;i<=10;i++){
   const t=find('"'Turret_'+i),g=find('Gun_'+i);if("'!t||!g||g.parent!==t){result.checks.push('"'Missing mesh parent '+i);continue}
   t.rotateY(Math.PI/6);g.rotateX(Math.PI/6);
   pivotsOK &&=t.position.distanceTo(before[t.name].p)<1e-7&&g.position.distanceTo(before[g.name].p)<1e-7;
   const axis=new T.Vector3(0,1,0).applyQuaternion(before[t.name].q);axesOK &&=Math.abs(axis.y-(i===4?-1:1))<1e-5;
  }
  asset.updateMatrixWorld(true);renderer.render(scene,camera);result.pivotTest={angle:30,all20PivotsStable:pivotsOK,allTraverseAxesCorrect:axesOK};
  const counts={};asset.traverse(o=>{for(const pre of ['Turret','Gun','Thruster','Muzzle','Hardpoint'])if(new RegExp('"'^'"'+pre+'_\\\\d+"'$'"').test(o.name))counts[pre]=(counts[pre]||0)+1});result.nodeCounts=counts;
  window.poseOriginal=before;return result;
 });await p.screenshot({path:path.join(dest,'runtime-motion.png')});
 await p.evaluate(()=>{asset.traverse(o=>{if(window.poseOriginal[o.name])o.quaternion.copy(window.poseOriginal[o.name].q)});asset.updateMatrixWorld(true);camera.position.set(110,85,122);camera.lookAt(0,25,45);camera.fov=46;camera.updateProjectionMatrix();renderer.render(scene,camera)});await p.screenshot({path:path.join(dest,'runtime-close.png')});
 await p.evaluate(()=>{window.mapOriginal=[];asset.traverse(o=>{if(o.isMesh){const ms=Array.isArray(o.material)?o.material:[o.material];for(const m of ms){if(window.mapOriginal.some(x=>x.m===m))continue;window.mapOriginal.push({m,n:m.normalMap,a:m.aoMap});m.normalMap=null;m.aoMap=null;m.needsUpdate=true}}});renderer.render(scene,camera)});await p.screenshot({path:path.join(dest,'runtime-maps-off.png')});
 report.errors=errors;console.log(JSON.stringify(report,null,2));await b.close();
})()
JS
tail -n 5 /tmp/heavy-cruiser-naval-check/build-final.log" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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exec
/bin/bash -lc "ssh gex44 \"pgrep -af '[h]eavy-cruiser-naval-v1'; file /root/blender-spike/blender-5.2.0-linux-x64/blender\"
ls -l /tmp/heavy-cruiser-naval-check/build-final.log" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 538ms:
4151918 python3 /opt/gpu-gate/gpu_gate.py --name blender --need-mib 6000 --priority batch -- /root/blender-spike/blender-5.2.0-linux-x64/blender.real -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py
bash: line 1: file: command not found
-rw-rw-r-- 1 claude-agent claude-agent 0 Oct 16 19:52 /tmp/heavy-cruiser-naval-check/build-final.log

codex
The ship now has shared plate and vent textures, neutral faction paint, and warm/cool reflections on the metalwork. The final render pass is waiting in the shared GPU queue; meanwhile I’m preparing the pivot, socket, and browser-viewer checks.
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/bin/bash -lc 'scp build_heavy-cruiser-naval.py gex44:/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py
ssh gex44 "python3 /opt/gpu-gate/gpu_gate.py --help"' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 1181ms:
usage: gpu_gate.py [-h] [--status] [--name NAME] [--need-mib NEED_MIB]
                   [--priority {build,batch}] [--lock-dir LOCK_DIR]
                   [--timeout TIMEOUT] [--poll POLL]
                   [--max-concurrent MAX_CONCURRENT]
                   ...

Run a command under the shared-GPU gate, or show the slots.

positional arguments:
  command               command to run, after --

options:
  -h, --help            show this help message and exit
  --status              print the live slots as JSON and exit
  --name NAME           job name, e.g. blender or hunyuan
  --need-mib NEED_MIB   VRAM the job needs, in MiB
  --priority {build,batch}
  --lock-dir LOCK_DIR
  --timeout TIMEOUT     seconds to wait for a slot before giving up
  --poll POLL           seconds between retries
  --max-concurrent MAX_CONCURRENT

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/bin/bash -lc 'ssh gex44 "python3 /opt/gpu-gate/gpu_gate.py --status"' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 401ms:
[
  {
    "name": "blender",
    "pid": 4151918,
    "need_mib": 6000,
    "started": 1792180520.873335,
    "priority": "batch"
  },
  {
    "name": "blender",
    "pid": 4163572,
    "need_mib": 6000,
    "started": 1792180521.7357953,
    "priority": "batch"
  }
]

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exec
/bin/bash -lc 'du -sh qa
ls -la | head -n 30
wc -l build_heavy-cruiser-naval.py' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
20M	qa
total 19004
drwxrwxr-x  4 claude-agent claude-agent     4096 Oct 16 19:37 .
drwxrwxr-x 78 claude-agent claude-agent     4096 Oct 16 18:33 ..
-rw-r--r--  1 claude-agent claude-agent      908 Oct 16 19:36 NOTES.md
-rw-rw-r--  1 claude-agent claude-agent     7474 Oct 16 19:29 PROMPT.txt
drwxrwxr-x  2 claude-agent claude-agent     4096 Oct 16 19:52 __pycache__
-rw-rw-r--  1 claude-agent claude-agent   319720 Oct 16 19:55 astra.log
-rw-rw-r--  1 claude-agent claude-agent    43548 Oct 16 19:54 build_heavy-cruiser-naval.py
-rw-r--r--  1 claude-agent claude-agent  1865941 Oct 16 19:36 clay.png
-rw-r--r--  1 claude-agent claude-agent  1913453 Oct 16 19:36 final.png
-rw-r--r--  1 claude-agent claude-agent 11728308 Oct 16 19:44 heavy-cruiser-naval.glb
-rw-rw-r--  1 claude-agent claude-agent     5150 Oct 16 18:37 job.json
-rw-r--r--  1 claude-agent claude-agent    18000 Oct 16 19:44 nodes.json
-rw-r--r--  1 claude-agent claude-agent   937864 Oct 16 19:37 paints.png
drwxrwxr-x  2 claude-agent claude-agent     4096 Oct 16 19:53 qa
-rw-rw-r--  1 claude-agent claude-agent   636764 Oct 16 18:35 sheet.jpg
-rw-rw-r--  1 claude-agent claude-agent      951 Oct 16 18:37 sheet_prompt.txt
-rw-r--r--  1 claude-agent claude-agent  1911689 Oct 16 19:37 side.png
-rw-rw-r--  1 claude-agent claude-agent       21 Oct 16 19:29 started.txt
690 build_heavy-cruiser-naval.py

 succeeded in 234128ms:
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/bin/bash -lc "ssh gex44 'ps -p 4151918 -o pid,etime,stat,wchan:24,args; pgrep -P 4151918 -a; python3 /opt/gpu-gate/gpu_gate.py --status'" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 513ms:
    PID     ELAPSED STAT WCHAN                    COMMAND
[
  {
    "name": "blender",
    "pid": 4147192,
    "need_mib": 6000,
    "started": 1792180604.9786553,
    "priority": "batch"
  },
  {
    "name": "blender",
    "pid": 4168383,
    "need_mib": 6000,
    "started": 1792180617.0012703,
    "priority": "batch"
  }
]

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/bin/bash -lc 'tail -n 20 /tmp/heavy-cruiser-naval-check/build-final.log' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
01:02.175  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/rear.png'
CRUISER 61.7 Rendered rear.png
01:08.375  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/close.png'
CRUISER 67.9 Rendered close.png
01:10.603  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-0.png'
CRUISER 70.2 Rendered paint-0.png
01:12.650  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-1.png'
CRUISER 72.2 Rendered paint-1.png
01:14.831  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-2.png'
CRUISER 74.4 Rendered paint-2.png
01:16.970  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-3.png'
CRUISER 76.5 Rendered paint-3.png
01:19.224  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-4.png'
CRUISER 78.8 Rendered paint-4.png
01:21.358  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-5.png'
CRUISER 80.9 Rendered paint-5.png
Info: Saved as "cruiser.blend"
CRUISER 81.1 COMPLETE

Blender quit

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/bin/bash -lc 'scp gex44:/root/fal-author/heavy-cruiser-naval-v1/{heavy-cruiser-naval.glb,final.png,side.png,clay.png,paints.png,nodes.json,NOTES.md} .' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "sed -n '1,200p' /tmp/heavy-cruiser-naval-check/validate.py" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
import json,struct,sys,io
from pathlib import Path
import numpy as np
from PIL import Image
p=Path(sys.argv[1]);b=p.read_bytes();jl=struct.unpack_from('<I',b,12)[0];g=json.loads(b[20:20+jl]);buf=b[28+jl:]
report={'bytes':len(b),'materials':len(g.get('materials',[])),'nodes':len(g.get('nodes',[])),'images':[],'problems':[]}
issues=report['problems']
for im in g['images']:
 v=g['bufferViews'][im['bufferView']];img=Image.open(io.BytesIO(buf[v.get('byteOffset',0):v.get('byteOffset',0)+v['byteLength']]))
 report['images'].append({'name':im.get('name'),'size':img.size,'bytes':v['byteLength']})
 if max(img.size)>1024:issues.append('Oversize texture '+str(im))
for m in g['materials']:
 if m['name']=='Paint':
  if m['pbrMetallicRoughness'].get('baseColorFactor')!=[.32,.34,.36,1]:issues.append('Paint factor')
  if 'baseColorTexture' not in m['pbrMetallicRoughness']:issues.append('Paint lost texture')
 if m['name']=='Glass' and m.get('alphaMode')!='BLEND':issues.append('Glass alpha')
 orm=m['pbrMetallicRoughness'].get('metallicRoughnessTexture')
 if orm:
  im=g['textures'][orm['index']]['source']
  if max(report['images'][im]['size'])>512:issues.append('ORM oversize '+m['name'])
names={n['name']:i for i,n in enumerate(g['nodes'])}
for n in ['Hull','Camera_Chase','Light_Nav_L','Light_Nav_R','Light_Beacon']+[f'Thruster_{i}' for i in range(1,7)]+[f'Muzzle_{i}' for i in range(1,25)]+[f'Hardpoint_{i}' for i in range(1,33)]:
 if n not in names:issues.append('Missing '+n)
parents={c:i for i,n in enumerate(g['nodes']) for c in n.get('children',[])}
for i in range(1,11):
 for kind in ['Turret','Gun']:
  n=g['nodes'][names[f'{kind}_{i}']]
  if 'mesh' not in n:issues.append('Moving mesh missing '+n['name'])
  if n.get('scale',[1,1,1])!=[1,1,1]:issues.append('Moving scale '+n['name'])
 if parents.get(names[f'Gun_{i}'])!=names[f'Turret_{i}']:issues.append('Gun parenting')
if len(b)>12*1024*1024:issues.append('File > 12 MiB')
if len(g['materials'])>9:issues.append('Material count')
if 'cameras' in g:issues.append('Cameras in export')
print(json.dumps(report,indent=2));sys.exit(bool(issues))

codex
The final build has finished. I’m checking the rendered materials, the six paint schemes, and the exported turret pivots and engine sockets.

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/bin/bash -lc 'scp gex44:/root/fal-author/heavy-cruiser-naval-v1/qa/{close.png,rear.png,motion-test.png,build-report.json} qa/' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "cat NOTES.md; cat qa/build-report.json; rg -n 'metadata|axes|paints|motion|Thruster|Hardpoint|Muzzle' build_heavy-cruiser-naval.py" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
Original 450 × 70 × 90 m naval space cruiser: four triple main turrets, six twin flank turrets, 32 missile cells, six engines; pivoted weapons and game sockets.
192,608 triangles; 21 mesh nodes; GLB 10.42 MiB; Y up, +Z nose, +X port, metre units.
9 materials: Paint, Metal, Dark, Weapons, Deck, Glass (BLEND), Engines, Lamps, Trim; neutral Paint bake with default linear factor [0.32, 0.34, 0.36].
Cycles GPU tile bakes: Base/Normal 1024² and ORM 512² (Glass/Engines/Lamps 32²); shared world-scale UVs and 4 × 1 m vent trims; JPEG embedded in GLB; no external runtime files.
Poly Haven CC0 ids: metal_plate, rusty_metal_04; https://polyhaven.com/a/metal_plate ; https://polyhaven.com/a/rusty_metal_04 ; licence https://polyhaven.com/license .
Reference differences: original faceted ram and bridge detailing, six hex-arranged nozzles; restrained patina for vacuum service, no markings; no interior beyond bridge console silhouettes.
{
  "elapsed_seconds": 62.13321018218994,
  "device": "GPU",
  "triangles": 169824,
  "moving_nodes_tested": [
    "Turret_1",
    "Gun_1",
    "Turret_2",
    "Gun_2",
    "Turret_3",
    "Gun_3",
    "Turret_4",
    "Gun_4",
    "Turret_5",
    "Gun_5",
    "Turret_6",
    "Gun_6",
    "Turret_7",
    "Gun_7",
    "Turret_8",
    "Gun_8",
    "Turret_9",
    "Gun_9",
    "Turret_10",
    "Gun_10"
  ],
  "bake_engine": "Cycles",
  "bake_samples": 8,
  "source_ids": [
    "metal_plate",
    "rusty_metal_04"
  ]
}443:   muzzle+=1; socket(f'Muzzle_{muzzle}',(xx,-23*size,0),gn)
464:     hard+=1;socket(f'Hardpoint_{hard}',(x,y-7.5,zz))
500:  socket(f'Thruster_{i}',(x,225,z))
643: meta={'asset':'heavy-cruiser-naval','units':'metres','origin':'Approximate centre of mass, middle of the main hull','texture_repeat_metres':{'Paint':12,'Metal':3.2,'Deck':8,'Trim':[4,1]},'coordinate_system':{'up':'+Y','nose':'+Z','left':'+X'},'bounding_box':{'min':lo,'max':hi,'size':[round(hi[i]-lo[i],4) for i in range(3)]},'triangles':tris,'materials':[m.name for m in MATS],'nodes':nd,'axes':{k:v['axis'] for k,v in MOVING.items()},'paints':[{'name':n,'linear_rgb':c} for n,c in PAINTS]}
670: bpy.context.view_layer.update();render(QA/'motion-test.png',1280,720,20)
685: im=bpy.data.images.new('SixPaints',width=1920,height=720);im.pixels.foreach_set(grid.ravel());im.filepath_raw=str(ROOT/'paints.png');im.file_format='PNG';im.save()

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/bin/bash -lc "gemini -p 'Read-only visual critique of a Blender asset. Inspect /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg and final.png, side.png, qa/close.png, qa/rear.png in that same directory. Compare silhouette, named ship parts, material realism, and production quality. This is a 450 m wet-navy space cruiser, constrained to 200k triangles, 9 materials, 1024 tiling textures, 12 MB. Give concise SHIP or REVISE verdict and at most 3 concrete highest-impact remaining fixes. Do not edit files or launch Blender.' --model forge:build-gemini-4 --effort high --print-timeout 240s > /tmp/heavy-cruiser-naval-check/critic-final.txt 2>&1" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "python3 - <<'PY'
p='/tmp/heavy-cruiser-naval-check/validate.py'
s=open(p).read().replace(\"12*1024*1024:issues.append('File > 12 MiB')\",\"12_000_000:issues.append('File > 12 MB')\")
open(p,'w').write(s)
PY" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc 'node /tmp/heavy-cruiser-naval-check/runtime-check.cjs /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa > qa/runtime-final.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
exec
/bin/bash -lc 'python3 /home/claude-agent/.agents/skills/blender-game-assets/scripts/audit_glb.py heavy-cruiser-naval.glb --strict > qa/audit-final.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
exec
/bin/bash -lc 'node /tmp/heavy-cruiser-naval-check/khronos.cjs heavy-cruiser-naval.glb > qa/khronos-final.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
exec
/bin/bash -lc 'python3 /tmp/heavy-cruiser-naval-check/validate.py heavy-cruiser-naval.glb > qa/contract-final.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "sed -n '1,210p' build_heavy-cruiser-naval.py; sed -n '290,420p' build_heavy-cruiser-naval.py; sed -n '535,610p' build_heavy-cruiser-naval.py" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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#!/usr/bin/env python3
"""Original naval heavy cruiser. Run with Blender 5.2 --background --python-exit-code 1.
Clean deterministic build: CC0 downloads -> Cycles tile bakes -> geometry -> GLB -> renders.
Blender authoring frame X=port, -Y=nose, Z=up; glTF X=port,Y=up,Z=nose.
"""
import bpy, bmesh, math, os, sys, json, random, urllib.request, struct, time
from pathlib import Path
from mathutils import Vector, Matrix
from math import sin, cos, pi
import numpy as np
ROOT=Path(__file__).resolve().parent
CACHE=ROOT/'textures'; CACHE.mkdir(exist_ok=True)
QA=ROOT/'qa'; QA.mkdir(exist_ok=True)
random.seed(27)
START=time.time()
PAINTS=[('Naval grey',[.32,.34,.36]),('Gunmetal',[.105,.13,.155]),('Olive drab',[.23,.265,.14]),('Desert sand',[.57,.43,.265]),('Arctic white',[.79,.83,.86]),('Deep navy',[.055,.105,.20])]
MATS=[]; ASSEMBLIES={}; SOCKETS=[]; MOVING={}

def log(s): print('CRUISER',round(time.time()-START,1),s,flush=True)
def reset():
 bpy.ops.object.select_all(action='SELECT'); bpy.ops.object.delete(use_global=False)
 for d in list(bpy.data.materials): bpy.data.materials.remove(d)
 sc=bpy.context.scene; sc.render.engine='CYCLES'; sc.cycles.samples=24; sc.cycles.use_denoising=True
 prefs=bpy.context.preferences.addons['cycles'].preferences
 for mode in ['OPTIX','CUDA']:
  try:
   prefs.compute_device_type=mode; prefs.get_devices()
   if any(d.type==mode for d in prefs.devices):
    for d in prefs.devices: d.use=(d.type==mode)
    sc.cycles.device='GPU'; log('GPU '+mode); break
  except Exception: pass
 else: raise RuntimeError('GPU required')
 sc.unit_settings.system='METRIC'; sc.unit_settings.scale_length=1
 sc.render.image_settings.file_format='PNG'; sc.render.film_transparent=False
 sc.view_settings.view_transform='AgX'; sc.view_settings.exposure=.10
 sc.render.resolution_percentage=100
 sc.world=bpy.data.worlds.new('Space')
 return sc
SC=reset()

def download():
 for ident in ['metal_plate','rusty_metal_04']:
  for typ in ['diff','nor_gl','arm']:
   p=CACHE/f'{ident}_{typ}_1k.jpg'
   if not p.exists():
    url=f'https://dl.polyhaven.org/file/ph-assets/Textures/jpg/1k/{ident}/{ident}_{typ}_1k.jpg'
    log('Download '+url)
    urllib.request.urlretrieve(url,p)

def node(nt,kind,**kw):
 n=nt.nodes.new(kind)
 for k,v in kw.items(): setattr(n,k,v)
 return n

def bake_material(name,kind):
 m=bpy.data.materials.new(name); m.use_nodes=True; nt=m.node_tree; nt.nodes.clear(); L=nt.links.new
 out=node(nt,'ShaderNodeOutputMaterial'); bs=node(nt,'ShaderNodeBsdfPrincipled'); L(bs.outputs['BSDF'],out.inputs['Surface'])
 uv=node(nt,'ShaderNodeTexCoord')
 def tex(filename,non=False):
  t=node(nt,'ShaderNodeTexImage'); t.image=bpy.data.images.load(str(CACHE/filename),check_existing=True)
  if non:t.image.colorspace_settings.name='Non-Color'
  L(uv.outputs['UV'],t.inputs['Vector']); return t
 def mathn(op,a,b=None):
  n=node(nt,'ShaderNodeMath',operation=op)
  if hasattr(a,'node'): L(a,n.inputs[0])
  else:n.inputs[0].default_value=a
  if b is not None:
   if hasattr(b,'node'):L(b,n.inputs[1])
   else:n.inputs[1].default_value=b
  return n.outputs[0]
 def mix(a,b,factor,blend='MIX'):
  n=node(nt,'ShaderNodeMixRGB',blend_type=blend); n.inputs[0].default_value=factor
  if hasattr(a,'node'):L(a,n.inputs[1])
  else:n.inputs[1].default_value=(*a,1)
  if hasattr(b,'node'):L(b,n.inputs[2])
  else:n.inputs[2].default_value=(*b,1)
  return n.outputs[0]
 rough=.47; metal=.7
 if kind in ['paint','metal','dark','weapon','deck','trim']:
  photo=tex('metal_plate_diff_1k.jpg'); nor=tex('metal_plate_nor_gl_1k.jpg',True); arm=tex('metal_plate_arm_1k.jpg',True)
  rust=tex('rusty_metal_04_diff_1k.jpg')
  bw=node(nt,'ShaderNodeRGBToBW'); L(photo.outputs['Color'],bw.inputs[0])
  normalize=mathn('MULTIPLY_ADD',bw.outputs[0],.10); normalize.node.inputs[2].default_value=.9
  brick=node(nt,'ShaderNodeTexBrick'); L(uv.outputs['UV'],brick.inputs['Vector'])
  brick.inputs['Scale'].default_value=1; brick.inputs['Mortar Size'].default_value=.0017
  brick.inputs['Mortar Smooth'].default_value=.002; brick.inputs['Brick Width'].default_value=1.0; brick.inputs['Row Height'].default_value=.25
  brick.inputs['Color1'].default_value=(.72,.72,.72,1); brick.inputs['Color2'].default_value=(1,1,1,1); brick.inputs['Mortar'].default_value=(.28,.28,.28,1)
  noise=node(nt,'ShaderNodeTexNoise'); L(uv.outputs['UV'],noise.inputs['Vector']); noise.inputs['Scale'].default_value=145; noise.inputs['Detail'].default_value=2
  base=normalize
  if kind=='paint':
   base=mix(normalize,brick.outputs['Color'],.45,'MULTIPLY'); rough=.48; metal=.45
  elif kind=='metal':
   base=mix(photo.outputs['Color'],(.36,.40,.44),.72); rough=.34; metal=.88
  elif kind=='dark':
   base=mix(photo.outputs['Color'],(.034,.042,.051),.91); rough=.57; metal=.75
  elif kind=='weapon':
   base=mix(photo.outputs['Color'],(.18,.20,.22),.72); rough=.4; metal=.82
  elif kind=='trim':
   base=mix(photo.outputs['Color'],(.25,.28,.31),.45); rough=.42; metal=.85
  else:
   base=mix(normalize,brick.outputs['Color'],.65,'MULTIPLY'); base=mix(base,(.10,.12,.135),.82); rough=.67; metal=.55
  # elongated grime and fine impact pitting, baked into the shared tile
  mapping=node(nt,'ShaderNodeVectorMath',operation='MULTIPLY'); L(uv.outputs['UV'],mapping.inputs[0]); mapping.inputs[1].default_value=(12,1.2,1)
  grime=node(nt,'ShaderNodeTexNoise'); L(mapping.outputs[0],grime.inputs['Vector']); grime.inputs['Scale'].default_value=6; grime.inputs['Detail'].default_value=3
  grimecol=node(nt,'ShaderNodeValToRGB'); L(grime.outputs['Fac'],grimecol.inputs[0]); grimecol.color_ramp.elements[0].color=(.58,.58,.58,1); grimecol.color_ramp.elements[1].color=(1,1,1,1)
  base=mix(base,grimecol.outputs[0],.52,'MULTIPLY')
  if kind not in ['paint','deck']:base=mix(base,rust.outputs['Color'],.075)
  # Neutral weathering from the second CC0 scan: broad oxidation, impact specks and polish.
  if kind=='paint':
   rustbw=node(nt,'ShaderNodeRGBToBW');L(rust.outputs[0],rustbw.inputs[0])
   wear=node(nt,'ShaderNodeValToRGB');L(rustbw.outputs[0],wear.inputs[0])
   wear.color_ramp.elements[0].position=.10;wear.color_ramp.elements[0].color=(.38,.38,.38,1)
   wear.color_ramp.elements[1].position=.6;wear.color_ramp.elements[1].color=(1,1,1,1)
   base=mix(base,wear.outputs[0],.68,'MULTIPLY')
  if kind=='trim':
   # A tiled vent/armour trim: 4 metres across, 1 metre tall; no unique hull atlas.
   wave=node(nt,'ShaderNodeTexWave');wave.bands_direction='Y';L(uv.outputs['UV'],wave.inputs['Vector']);wave.inputs['Scale'].default_value=5
   crest=mathn('GREATER_THAN',wave.outputs['Fac'],.35)
   trimcol=node(nt,'ShaderNodeMixRGB');L(crest,trimcol.inputs[0]);trimcol.inputs[1].default_value=(.008,.012,.017,1);L(base,trimcol.inputs[2]);base=trimcol.outputs[0]
  L(base,bs.inputs['Base Color'])
  nm=node(nt,'ShaderNodeNormalMap'); nm.inputs['Strength'].default_value=.08; L(nor.outputs['Color'],nm.inputs['Color'])
  bump=node(nt,'ShaderNodeBump'); bump.inputs['Strength'].default_value=.15; bump.inputs['Distance'].default_value=.008
  L(nm.outputs[0],bump.inputs['Normal']); L(noise.outputs['Fac'],bump.inputs['Height']); L(bump.outputs[0],bs.inputs['Normal'])
  if kind in ['paint','deck']:
   b2=node(nt,'ShaderNodeBump'); b2.inputs['Strength'].default_value=.5; b2.inputs['Distance'].default_value=.055
   L(bump.outputs[0],b2.inputs['Normal']); L(brick.outputs['Fac'],b2.inputs['Height']); b2.invert=True; L(b2.outputs[0],bs.inputs['Normal'])
  if kind=='trim':
   bt=node(nt,'ShaderNodeBump');bt.inputs['Strength'].default_value=.6;bt.inputs['Distance'].default_value=.06;L(wave.outputs['Fac'],bt.inputs['Height']);L(bump.outputs[0],bt.inputs['Normal']);L(bt.outputs[0],bs.inputs['Normal'])
  sep=node(nt,'ShaderNodeSeparateColor'); L(arm.outputs['Color'],sep.inputs[0])
  roughout=mathn('MULTIPLY_ADD',grime.outputs['Fac'],.32); roughout.node.inputs[2].default_value=rough-.16
  aoout=mathn('MULTIPLY_ADD',sep.outputs['Red'],.22); aoout.node.inputs[2].default_value=.78
 else:
  colors={'glass':(.075,.16,.20),'engine':(.12,.72,1.0),'lamp':(.6,.8,1)}
  base=colors[kind]; bs.inputs['Base Color'].default_value=(*base,1); rough=.18 if kind=='glass' else .38; metal=.15
  roughout=None; aoout=None
  if kind=='engine':
   offset=node(nt,'ShaderNodeVectorMath',operation='DISTANCE');L(uv.outputs['UV'],offset.inputs[0]);offset.inputs[1].default_value=(.5,.5,0)
   plasma=node(nt,'ShaderNodeValToRGB');plasma.color_ramp.elements[0].position=.08;plasma.color_ramp.elements[0].color=(.8,.95,1,1)
   plasma.color_ramp.elements[1].position=.52;plasma.color_ramp.elements[1].color=(.015,.26,1,1)
   e=plasma.color_ramp.elements.new(.34);e.color=(.08,.72,1,1);L(offset.outputs['Value'],plasma.inputs[0]);base=plasma.outputs[0];L(base,bs.inputs['Base Color'])
  if kind=='lamp':
   sx=node(nt,'ShaderNodeSeparateXYZ');L(uv.outputs['UV'],sx.inputs[0])
   palette=node(nt,'ShaderNodeValToRGB');palette.color_ramp.interpolation='CONSTANT'
   palette.color_ramp.elements[0].color=(.7,.85,1,1)
   palette.color_ramp.elements[1].position=.667;palette.color_ramp.elements[1].color=(.015,1,.08,1)
   e=palette.color_ramp.elements.new(.333);e.color=(1,.018,.008,1)
   L(sx.outputs[0],palette.inputs[0]);base=palette.outputs['Color']
   L(base,bs.inputs['Base Color'])
 bs.inputs['Metallic'].default_value=metal; bs.inputs['Roughness'].default_value=rough
 # A real Cycles bake on a UV tile, used at 8 m, 4 m or 2 m intervals throughout.
 bpy.ops.mesh.primitive_plane_add(size=2); plane=bpy.context.object; plane.name='BakeTile'; plane.data.materials.append(m)
 SC.cycles.samples=8; SC.render.bake.margin=8; SC.render.bake.use_clear=True
 baked={}
 for channel,res in [('Base',1024 if kind in ['paint','metal','dark','weapon','deck','trim'] else 32),('Normal',1024 if kind in ['paint','metal','dark','weapon','deck','trim'] else 32),('ORM',512 if kind in ['paint','metal','dark','weapon','deck','trim'] else 32)]:
  im=bpy.data.images.new(name+'_'+channel,width=res,height=res,alpha=False)
  if channel!='Base':im.colorspace_settings.name='Non-Color'
  target=node(nt,'ShaderNodeTexImage'); target.image=im; nt.nodes.active=target
  if channel=='Base':
   emit=node(nt,'ShaderNodeEmission')
   if hasattr(base,'node'):L(base,emit.inputs[0])
   else:emit.inputs[0].default_value=(*base,1)
   L(emit.outputs[0],out.inputs['Surface']); bpy.ops.object.bake(type='EMIT'); nt.nodes.remove(emit)
  elif channel=='Normal':
   L(bs.outputs[0],out.inputs['Surface']); bpy.ops.object.bake(type='NORMAL')
  else:
   comb=node(nt,'ShaderNodeCombineColor'); comb.inputs['Red'].default_value=1; comb.inputs['Green'].default_value=rough; comb.inputs['Blue'].default_value=metal
   if aoout:L(aoout,comb.inputs['Red'])
   if roughout:L(roughout,comb.inputs['Green'])
   emit=node(nt,'ShaderNodeEmission'); L(comb.outputs[0],emit.inputs[0]); L(emit.outputs[0],out.inputs['Surface']); bpy.ops.object.bake(type='EMIT'); nt.nodes.remove(emit)
  im.filepath_raw=str(CACHE/f'{name}_{channel}.png'); im.file_format='PNG'; im.save(); baked[channel]=im
  nt.nodes.remove(target)
 bpy.data.objects.remove(plane,do_unlink=True)
 nt.nodes.clear(); out=node(nt,'ShaderNodeOutputMaterial'); bs=node(nt,'ShaderNodeBsdfPrincipled'); L(bs.outputs[0],out.inputs[0])
 for ch in ['Base','Normal','ORM']:
  t=node(nt,'ShaderNodeTexImage',name=ch); t.image=baked[ch]
  if ch=='Base':
   if name=='Paint':
    mult=node(nt,'ShaderNodeMixRGB',name='FactionTint',blend_type='MULTIPLY'); mult.inputs[0].default_value=1; mult.inputs[2].default_value=(*PAINTS[0][1],1); L(t.outputs[0],mult.inputs[1]); L(mult.outputs[0],bs.inputs['Base Color'])
   else:L(t.outputs[0],bs.inputs['Base Color'])
  elif ch=='Normal':
   nm=node(nt,'ShaderNodeNormalMap'); L(t.outputs[0],nm.inputs['Color']); L(nm.outputs[0],bs.inputs['Normal'])
  else:
   sp=node(nt,'ShaderNodeSeparateColor'); L(t.outputs[0],sp.inputs[0]); L(sp.outputs['Green'],bs.inputs['Roughness']); L(sp.outputs['Blue'],bs.inputs['Metallic'])
   group=bpy.data.node_groups.get('glTF Material Output')
   if group is None:
    group=bpy.data.node_groups.new('glTF Material Output','ShaderNodeTree'); group.interface.new_socket(name='Occlusion',in_out='INPUT',socket_type='NodeSocketFloat')
   occ=node(nt,'ShaderNodeGroup'); occ.node_tree=group; L(sp.outputs['Red'],occ.inputs['Occlusion'])
 if kind in ['engine','lamp']:
  L(nt.nodes['Base'].outputs[0],bs.inputs['Emission Color']); bs.inputs['Emission Strength'].default_value=4.0 if kind=='engine' else 1.4
 if kind=='glass':
  bs.inputs['Alpha'].default_value=.62; bs.inputs['Metallic'].default_value=.25
  m.surface_render_method='DITHERED'; m.diffuse_color=(.075,.16,.20,.62)
 MATS.append(m); log('Baked '+name)
 return len(MATS)-1

# Component builders accumulate geometry directly; no thousands of scene nodes.
class Part:
 def __init__(self,name,pivot=(0,0,0),parent=None,rot=(0,0,0)):
  self.name=name; self.pivot=Vector(pivot); self.parent=parent; self.rot=rot; self.v=[]; self.f=[]; self.mi=[]; self.sm=[]
  ASSEMBLIES[name]=self
 def add(self,v,f,mat=0,bevel=0,smooth=False):
  bm=bmesh.new(); vv=[bm.verts.new(p) for p in v]
  for face in f:
   try:bm.faces.new([vv[i] for i in face])
   except ValueError:pass
  bmesh.ops.recalc_face_normals(bm,faces=list(bm.faces))
  if bevel:
   bmesh.ops.bevel(bm,geom=list(bm.edges),offset=bevel,segments=2,affect='EDGES',profile=.5)
   bmesh.ops.recalc_face_normals(bm,faces=list(bm.faces))
  bm.verts.ensure_lookup_table(); bm.verts.index_update(); off=len(self.v)
 stations=[(-225,4.4,-19,13),(-207,8,-21,15),(-176,15,-22,16),(-133,23,-23,17),(-82,27,-24,18),(20,29,-24,18),(102,28,-23,18),(160,25,-20,16),(184,21,-17,14)]
 def cross(y,w,bot,top):
  rake=max(0,(-y-190)/35)
  return [(0,y+18*rake,top),(w*.77,y+18*rake,top),(w,y+14*rake,top-11),(w,y+8*rake,bot+17),(w*.72,y+8*rake,bot),(0,y+8*rake,bot),(-w*.72,y+8*rake,bot),(-w,y+8*rake,bot+17),(-w,y+14*rake,top-11),(-w*.77,y+18*rake,top)]
 verts=[]
 for s in stations:verts+=cross(*s)
 faces=[tuple(reversed(range(10))),tuple(range(len(verts)-10,len(verts)))]
 for j in range(len(stations)-1):
  for k in range(10):faces.append((j*10+k,j*10+(k+1)%10,(j+1)*10+(k+1)%10,(j+1)*10+k))
 H.add(verts,faces,0,.45)
 # Flared bow cheeks: distinct swept plates with a recessed central spine.
 for sign in [-1,1]:
  rings=[(-225,4.8,-19,-22),(-207,8.8,14,-22),(-176,16,16.5,-22),(-133,24.2,16,-22.5),(-82,28.3,11,-20)]
  vs=[]
  for y,w,top,bot in rings:
   vs += [(sign*(w-1.6),y,top),(sign*w,y,top-3),(sign*(w+1.9),y,(top+bot)*.5),(sign*(w-1.6),y,bot),(sign*(w-2.3),y,bot+1),(sign*(w-2.3),y,top-1)]
  fs=[tuple(reversed(range(6))),tuple(range(len(vs)-6,len(vs)))]
  for j in range(len(rings)-1):
   for k in range(6):fs.append((j*6+k,j*6+(k+1)%6,(j+1)*6+(k+1)%6,(j+1)*6+k))
  H.add(vs,fs,0,.24)
  pipe(H,[(sign*(w+1.91),y,(top+bot)*.5) for y,w,top,bot in rings[1:]],.10,1)
  # layered lower armour rail following the curve of the hull
  for a,b in zip(stations[1:-1],stations[2:]):
   y,w,bot,top=a; yy,ww,bb,tt=b
   v=[(sign*(w*.84+.12),y,bot+7),(sign*(ww*.84+.12),yy,bb+7),(sign*(ww*.84+.12),yy,bb+8.25),(sign*(w*.84+.12),y,bot+8.25),(sign*(w*.84-.4),y,bot+7),(sign*(ww*.84-.4),yy,bb+7),(sign*(ww*.84-.4),yy,bb+8.25),(sign*(w*.84-.4),y,bot+8.25)]
   H.add(v,[(0,1,2,3),(4,7,6,5),(0,4,5,1),(3,2,6,7),(0,3,7,4),(1,5,6,2)],2,.12)
 # Inset bow observation/sensor spine, framed and barred.
 H.box((0,-211,0),(6.9,1.3,22),2,.2)
 for z in range(-9,11):H.box((0,-211.8,z),(6.7,.35,.25),1,.05)
 for s in [-1,1]:H.box((s*3.6,-211.9,0),(.45,.65,22.8),1,.08)
 # upper deck inset: longitudinal loft rather than a slab
 H.loft([(17.3,20,107,-40,5),(18.2,20,107,-40,5)],4,.18)
 H.loft([(17,23.5,62,105,6),(18.4,22,61,105,5)],4,.18)
 # raised forecastle and citadel continuous battered walls
 H.loft([(17,22,48,10,6),(26,19,43,12,5),(28,17.8,40,14,4)],0,.55)
 # Continuous raised forecastle carries the superfiring B turret into the citadel.
 H.loft([(17.5,19,35,-40,4),(26.7,16.5,29,-39,3),(28.1,15.4,27,-39,3)],0,.3)
 for sign in [-1,1]:
  H.box((sign*16.7,-42,23),(.5,35,4),2,.12)
  for y in [-55,-46,-37,-28]:H.box((sign*17.05,y,23),(.4,.7,3.8),1,.1)
 H.loft([(27.5,16,29,14,3),(32.5,14.6,24,16,2.5)],0,.23)
 H.loft([(32.3,13.9,21.8,19,2.6),(39,12.5,20,20,2.5)],0,.25)
 H.box((0,-8.3,30.5),(20,.7,1.15),2,.13)
 H.box((0,-8.72,30.6),(16,.16,.36),5,.035)
 H.box((0,-3.5,34.4),(14,.65,.8),2,.12)
 H.box((0,-3.88,34.5),(11,.16,.25),5,.025)
 H.box((0,-7.6,32.5),(5,3.2,1.1),3,.18)
 for x in [-9,9]:
  H.box((x,-.6,35.8),(.7,1.1,6.1),1,.12,Matrix.Rotation(-.28,3,'X'))
 # angled bridge: overlapping armored brow, dark continuous glazing, roof and wings
 H.loft([(38.4,13.3,17,18,2.8),(42.6,14.7,18,18,2.8)],2,.25)
 H.loft([(40,13.4,16.9,17.6,2.7),(44.5,14.0,17.4,17.6,2.5)],5,.15)
 H.loft([(44.4,15.4,19,18,2.8),(46.1,15.2,18.7,18,2.5)],0,.27)
 for s in [-1,1]:
  for y in [5,12,19,26,33]:H.box((s*14.05,y,42.5),(.4,.45,4.5),1,.08)
  H.loft([(35,s*0+18,7,23,2),(37,17.7,7,23,2)],0,.25)
 # front bridge mullions & interior consoles glimpsed through glazing
 for x in [-10,-5,0,5,10]:H.box((x,.1,42.2),(.4,.7,4),1,.08)
 H.box((0,5,40),(20,3,1.5),2,.12)
 for x in [-8,-4,0,4,8]:H.box((x,3.35,40.9),(2,.2,.65),7,.04)
 H.loft([(46,7,8,24,2),(52,5.4,6,25,1.5)],0,.25)
 H.box((0,25,52.5),(12,10,1.2),1,.16)
 H.cyl((0,25,53),(0,25,62),.14,1,12)
 H.cyl((3,27,52.5),(3,27,58),.09,1,10)
 H.cyl((-4,26,52.5),(-4,26,56),.1,1,10)
 H.box((0,25,54),(8,.5,.45),2,.1)
 # Low aft machinery island and gun pedestal.
 H.loft([(17,23,34,116,5),(25,19,30,116,4)],0,.5)
 H.loft([(16,22,20,168,5),(27,18,16,171,4)],0,.4)
 def width_at(y):
  for a,b in zip(stations,stations[1:]):
   if a[0]<=y<=b[0]:return a[1]+(b[1]-a[1])*(y-a[0])/(b[0]-a[0])
  return stations[-1][1]
 for s in [-1,1]:
  # flank longitudinal recesses, framed machinery bays and discrete armor belt panels
  for y in [-85,-52,-19,14,47,80,113,146]:
   x=s*(width_at(y)+.15)
   H.box((x,y,-3),(1.6,28,13.5),2,.25)
   H.box((x+s*.8,y,3.8),(.9,29,.8),1,.12)
   H.box((x+s*.8,y,-10),(.9,29,.8),1,.12)
   for yy in [y-14,y+14]:H.box((x+s*.9,yy,-3),(.8,.7,13),0,.16)
   for zz in [-7,-3,1]:
    H.cyl((x+s*1.4,y-11,zz),(x+s*1.4,y+11,zz),.26,1,10)
   for yy in [y-8,y+8]:H.box((x+s*1.45,yy,-3),(1.1,1.7,12),2,.13)
  for y in [-112,-78,-44,-10,24,58,92,126,157]:
   w=24 if y<-90 else (27 if y<130 else 24)
   # sloping upper shoulder panels
   w=width_at(y);ang=Matrix.Rotation(s*math.radians(58),3,'Y')
   H.box((s*(w*.885),y,12.4),(8,29,.55),0,.17,ang)
   H.box((s*(w*.885),y+13.2,12.85),(7.7,.38,.16),1,.04,ang)
  # human-scale inset lit porthole bands near citadel / aft quarters
  for y in list(range(-28,53,4))+list(range(103,150,4)):
   x=s*(20 if y<60 else 21)
   H.box((x,y,25 if y<60 else 22),(.45,2.05,.75),2,.08)
   H.box((x+s*.25,y,25 if y<60 else 22),(.12,1.45,.35),7,.025)
  # machinery modules and side docking airlocks between sponsons
  for y in [-7,75]:
   H.box((s*30,y,-1),(4,16,20),0,.55)
   H.box((s*32.12,y,-1),(.4,12.4,15.5),2,.2)
   H.box((s*32.4,y,-1),(.4,10.8,13.6),1,.2)
   H.box((s*32.65,y,-1),(.3,.22,12.4),2,.04)
   for yy in [-4,4]:
    for zz in [-5,3]:H.box((s*32.8,y+yy,zz),(.35,1.2,.45),2,.08)
  for y in [-7,75]:
   H.box((s*32.7,y,-6.5),(.12,7.4,1.4),8,.025)
  for y in [-41,18,104,141]:
   H.box((s*(width_at(y)+1.02),y,5.2),(.18,10.5,1.5),8,.04)
  # cooling louvres on bridge sides
  for y in [-4,37]:
   H.box((s*17,y,30),(1,14,7),2,.15)
   for j in range(12):H.box((s*17.6,y-6+j*1.05,30),(.7,.25,6.3),1,.04)
  # deck handrails at service routes, broken only around weapons
  for a,b in [(-151,-118),(-16,37),(66,85),(139,165)]:
   rail(H,[(s*(15 if a<-100 else 22),y,18.5) for y in range(a,b+1,4)])
  # conduits, service hatches and compact deck fittings
  pipe(H,[(s*17,-125,18.5),(s*18,-85,18.5),(s*20,-76,18.5)],.3)
  pipe(H,[(s*24,56,19),(s*24,146,19),(s*19,158,22)],.34)
  for y in [-142,-126,-108,61,78,140,156]:
   H.box((s*13,y,18.7),(4,6,.55),2,.16); H.box((s*13,y,19.05),(3.6,5.5,.22),0,.1)
   bolts(H,(s*13,y),1.45,2.25,19.18)
  for y in [-172,-158]:
   H.cyl((s*7,y,16),(s*7,y,18.5),.4,1,12); H.box((s*7,y,18.6),(3,.8,.55),1,.1)
 # bottom keel spine + armored ventral plinth
 H.loft([(-24,16,76,25,4),(-21,20,82,25,5)],2,.4)
 H.loft([(-25,14,20,-29,3),(-21,17,23,-29,3)],0,.3)
 # main turrets: two forward superfiring, one stern, one ventral
 main=[((0,-105,18.5),0,False),((0,-53,28.2),0,False),((0,113,25.5),pi,False),((0,-29,-24.5),pi,True)]
 gunid=0; muzzle=0
 def turret(pivot,yaw,size,barrels,under=False):
  nonlocal gunid,muzzle
  gunid+=1; idx=gunid; name=f'Turret_{idx}'; gn=f'Gun_{idx}'
  if sign==1:H.loft([(28,4.4,9,44,1.2),(33.5,3.4,7,45,1),(35,3.2,6.6,45,1)],2,.22)
  pipe(H,[(sign*13.5,38,36),(sign*13.5,44,36),(sign*13.5,44,32)],.4)
  # low catwalk shields, recessed side strip; no spurious text or faction marks
  for a,b in [(-151,-120),(-13,34),(68,85),(141,164)]:
   H.box((sign*(15.6 if a<-100 else 22.7),(a+b)/2,18.8),(.3,b-a,.6),2,.08)
 # Bridge roof equipment and a proper open mast with stays.
 H.box((0,14,46.5),(15,7,.45),2,.14)
 for x in [-5,0,5]:H.box((x,14,46.8),(3.2,5.8,.35),1,.1)
 for sign in [-1,1]:
  pipe(H,[(sign*2.6,25,53),(0,25,59)],.09)
  H.cyl((sign*9,23,46),(sign*9,23,48.2),1.2,2,20)
  H.cyl((sign*9,23,48.2),(sign*9,23,49.7),1.2,1,20,r2=.3)
 # Recessed forward armor apron and maintenance access on the bridge face.
 H.box((0,-4.0,33),(9,.4,4),2,.15)
 for x in [-3.4,-1.7,0,1.7,3.4]:H.box((x,-4.28,33),(.7,.25,3),1,.07)
 # normalize exact mesh dimensions before creating pivoted objects; transforms remain untouched.
 # width is determined by broadside gun tips (~75 m): compress only lateral world geometry.
 for p in ASSEMBLIES.values():p.create()
 for name,pos,parent,rot,meta in SOCKETS:
  ob=bpy.data.objects.new(name,None);bpy.context.collection.objects.link(ob);ob.empty_display_size=1
  ob.parent=ASSEMBLIES[parent].ob;ob.location=pos;ob.rotation_euler=rot
  for k,v in meta.items():ob[k]=v
 bpy.context.view_layer.update()
 # Apply affine dimensions in WORLD then back into each mesh's local frame, preserving all pivots.
 objects=[p.ob for p in ASSEMBLIES.values()]
 pts=[o.matrix_world@Vector(c) for o in objects for c in o.bound_box]
 lo=Vector([min(p[i] for p in pts) for i in range(3)]); hi=Vector([max(p[i] for p in pts) for i in range(3)])
 factors=Vector((70/(hi.x-lo.x),450/(hi.y-lo.y),90/(hi.z-lo.z)))
 old={o.name:o.matrix_world.copy() for o in list(objects)+[bpy.data.objects[s[0]] for s in SOCKETS]}
 worldScale=Matrix.Diagonal((*factors,1))
 for o in objects:
  oldmat=old[o.name]; newloc=worldScale@oldmat.translation; rot=oldmat.to_quaternion().to_matrix().to_4x4(); rot.translation=newloc
  deform=rot.inverted()@worldScale@oldmat
  for v in o.data.vertices:v.co=deform@v.co
  o.matrix_world=rot
 bpy.context.view_layer.update()
 for name,*_ in SOCKETS:
  ob=bpy.data.objects[name]; w=old[name].copy();w.translation=worldScale@w.translation;ob.matrix_world=w
 bpy.context.view_layer.update()
 cache={}
 for o in objects:
  signature=(tuple(tuple(round(c,5) for c in v.co) for v in o.data.vertices),tuple((tuple(p.vertices),p.material_index) for p in o.data.polygons))
  if signature in cache:o.data=cache[signature]
  else:cache[signature]=o.data
 log('Geometry components '+str(len(H.f))+' static faces')


def setup_lighting():
 w=SC.world;w.use_nodes=True;n=w.node_tree.nodes;n.clear();L=w.node_tree.links.new
 tc=node(w.node_tree,'ShaderNodeTexCoord');sep=node(w.node_tree,'ShaderNodeSeparateXYZ');L(tc.outputs['Normal'],sep.inputs[0])
 ramp=node(w.node_tree,'ShaderNodeValToRGB');L(sep.outputs['Z'],ramp.inputs[0]);ramp.color_ramp.elements[0].color=(.004,.006,.012,1);ramp.color_ramp.elements[1].color=(.015,.027,.046,1)
 bg=node(w.node_tree,'ShaderNodeBackground');bg.inputs['Strength'].default_value=.36;L(ramp.outputs[0],bg.inputs[0]);out=node(w.node_tree,'ShaderNodeOutputWorld');ambient=node(w.node_tree,'ShaderNodeBackground');ambient.inputs['Color'].default_value=(.11,.14,.19,1);ambient.inputs['Strength'].default_value=.7
 lp=node(w.node_tree,'ShaderNodeLightPath');mixworld=node(w.node_tree,'ShaderNodeMixShader');L(lp.outputs['Is Camera Ray'],mixworld.inputs[0]);L(ambient.outputs[0],mixworld.inputs[1]);L(bg.outputs[0],mixworld.inputs[2]);L(mixworld.outputs[0],out.inputs[0])
 def sun(name,loc,energy,color,angle):
  d=bpy.data.lights.new(name,'SUN');d.energy=energy;d.color=color;d.angle=angle;o=bpy.data.objects.new(name,d);bpy.context.collection.objects.link(o);o.location=loc;o.rotation_euler=(-Vector(loc)).to_track_quat('-Z','Y').to_euler()
 sun('Key',(170,-240,330),4.1,(1,.95,.88),.10)
 sun('CoolFill',(-200,-70,90),1.15,(.64,.78,1),.28)
 sun('Rim',(10,200,140),2.0,(.65,.8,1),.14)
 d=bpy.data.lights.new('Broad daylight reflection','AREA');d.energy=2500000;d.shape='RECTANGLE';d.size=190;d.size_y=280;o=bpy.data.objects.new('Broad daylight reflection',d);bpy.context.collection.objects.link(o);o.location=(160,-70,240);o.rotation_euler=(-o.location).to_track_quat('-Z','Y').to_euler()
 sun('LowerBounce',(-50,-10,-180),.36,(.59,.7,1),.3)
 camd=bpy.data.cameras.new('RenderCamera');cam=bpy.data.objects.new('RenderCamera',camd);bpy.context.collection.objects.link(cam);SC.camera=cam
 # Blender 5 compositor socket API; glow is restrained and only affects emissive highlights.
 comp=bpy.data.node_groups.new('Cruiser_Compositing','CompositorNodeTree');SC.compositing_node_group=comp
 comp.interface.new_socket(name='Image',in_out='OUTPUT',socket_type='NodeSocketColor')
 rl=comp.nodes.new('CompositorNodeRLayers');glare=comp.nodes.new('CompositorNodeGlare')
 glare.inputs['Type'].default_value='Fog Glow';glare.inputs['Quality'].default_value='High';glare.inputs['Threshold'].default_value=1.3;glare.inputs['Strength'].default_value=.16;glare.inputs['Size'].default_value=.2
 output=comp.nodes.new('NodeGroupOutput');comp.links.new(rl.outputs['Image'],glare.inputs['Image']);comp.links.new(glare.outputs['Image'],output.inputs['Image'])
 camd.type='ORTHO';camd.clip_end=3000
 return cam

def camera_view(cam,mode='hero'):
 if mode=='side':cam.location=(600,0,20);target=Vector((0,0,12));cam.data.ortho_scale=490
 elif mode=='rear':cam.location=(340,540,230);target=Vector((0,55,8));cam.data.ortho_scale=440
 elif mode=='close':cam.location=(110,-122,90);target=Vector((0,-45,27));cam.data.ortho_scale=143
 else:cam.location=(370,-490,245);target=Vector((0,-10,6));cam.data.ortho_scale=455
 cam.rotation_euler=(target-cam.location).to_track_quat('-Z','Y').to_euler()

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exec
/bin/bash -lc 'cat qa/runtime-final.json; cat qa/build-report.json; tail -n 25 /tmp/heavy-cruiser-naval-check/critic-final.txt' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
{
  "renderer": "WebKit WebGL",
  "triangles": 192608,
  "meshes": 69,
  "bounds": {
    "min": [
      -35.00000288910064,
      -31.723239752206062,
      -224.89633178710938
    ],
    "max": [
      35.000002143984005,
      58.276763916015625,
      225.1036834716797
    ]
  },
  "calls": 70,
  "errors": [],
  "checks": [],
  "pivotTest": {
    "angle": 30,
    "all20PivotsStable": true,
    "allTraverseAxesCorrect": true
  },
  "nodeCounts": {
    "Hardpoint": 32,
    "Thruster": 6,
    "Turret": 10,
    "Gun": 10,
    "Muzzle": 24
  }
}
{
  "elapsed_seconds": 81.09238362312317,
  "device": "GPU",
  "triangles": 192608,
  "moving_nodes_tested": [
    "Turret_1",
    "Gun_1",
    "Turret_2",
    "Gun_2",
    "Turret_3",
    "Gun_3",
    "Turret_4",
    "Gun_4",
    "Turret_5",
    "Gun_5",
    "Turret_6",
    "Gun_6",
    "Turret_7",
    "Gun_7",
    "Turret_8",
    "Gun_8",
    "Turret_9",
    "Gun_9",
    "Turret_10",
    "Gun_10"
  ],
  "bake_engine": "Cycles",
  "bake_samples": 8,
  "source_ids": [
    "metal_plate",
    "rusty_metal_04"
  ]
}
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exec
/bin/bash -lc "cat /home/claude-agent/.agents/skills/blender-game-assets/references/critic-loop.md; sed -n '1,150p' /home/claude-agent/.agents/skills/blender-game-assets/SKILL.md" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
cat: /home/claude-agent/.agents/skills/blender-game-assets/references/critic-loop.md: No such file or directory
---
name: blender-game-assets
description: "Create Blender game assets and export GLB kits with baked textures; validate renders against reference images."
metadata:
  provenance: adapted
---

# Blender game assets, headless

Distilled from TheLongSilence's Blender pipeline (162 m ship, carved rocks, a
cabin interior kit, 13 ground materials) into a headless-first recipe for
Forge. **No GUI, no BlenderMCP socket** — Forge's Blender lives on gex44 with
no display, and `blender -b` is the one thing BlenderMCP's addon refuses to
run under. Everything below is a plain `blender -b --python` call or the
gex44 exec service.

For architectural construction kits, read `construction-kit` and its tested
source builders. It supplies cross-family profile/damage/UV contracts and
consumer-side checks; use only the relevant elements.

For a connected playable scene, also read `visual-game-loop` and its
`references/whole-scene-blender.md`: the user-approved harbour recipe combines
scene/object references, photographic materials and coherent Blender construction
with gameplay verification. Reuse good hero assets; author the surrounding place
as a whole rather than assuming a larger modular catalog will fix assembly.

## Read only what the task needs

| When | Read |
| --- | --- |
| A dense model must become a light one that keeps its look (normal + AO transfer) | [high-to-low baking](reference/high-to-low-baking.md) |
| Preparing UVs or a cage, or a bake shows seams, black faces, wrong highlights | [baking and diagnostics](reference/baking-and-diagnostics.md) |
| Choosing texture or mesh formats, or the asset is slow to load or heavy in GPU memory (KTX2, WebP, meshopt, Draco) | [asset delivery](reference/asset-delivery.md) |
| Before any long bake or scripted export pipeline | [preflight and recovery](reference/preflight-and-recovery.md) |
| The asset looks right in Blender and wrong in the game, or the cause could be either | [runtime parity and diagnostics](reference/runtime-parity-and-diagnostics.md) |
| The asset will be judged by eye (hero prop, character, building, environment) | [author and critic loop](reference/critic-loop.md) |
| Terrain, cliffs or rocks should look weathered (branching gullies and ridges, no simulation) | [terrain erosion](reference/terrain-erosion.md) |

These seven are loaded on demand, not by default. Five are ported from vercel-labs/vgpu (see Attribution); terrain erosion uses Rune Skovbo Johansen's filter (MPL 2.0, `scripts/erosion/`).

### Choose how to carry each detail before any bake

| Detail | Carry it as |
| --- | --- |
| Silhouette, openings, broad edges, tuft dimples, piping, moving parts | Real low-poly geometry |
| Fine bevel curvature and shallow relief the triangle budget cannot afford | Tangent-space normals baked from the dense source |
| Permanent cavities and contacts inside a rigid assembly | Baked AO |
| Fabric weave, grain, micro-texture | The existing tiled map at its own scale, never re-baked into a unique atlas |
| Contacts that change, directional shadows | Runtime lighting |

**Pick the cheapest carrier that passes the look check. Being under a texture budget is not a reason to
spend it.** A unique normal atlas is the last resort, for detail the triangle budget cannot hold: a
1024 px RGBA8 map with mips is 5.6 MB of GPU memory per asset, and it replaces a tiled map that every
copy of the material could have shared. If you try a bake and geometry plus the source's tiled maps
looks as good, ship the geometry and say so in the report.

Measured (2 Oct 2026, STRANDMON armchair, 233k to 12k triangles, two Astra runs, same brief): dimples kept
as geometry with the two original 256 px tiled maps = 0.46 MB download, 0.7 MB GPU textures. Same detail
baked into a unique 1152 px normal map = 1.19 MB download, 7.4 MB GPU textures, slightly closer from across
the room, slightly weaker up close, and a blind judge preferred the geometry version.

## Which representation: decide before modelling

For furniture reconstructed from photographs, datasheets or assembly instructions,
read [Furniture reconstruction checks](reference/furniture-reconstruction.md)
before generating geometry. It covers panel-relative coat-hook placement,
interior compartment counts and optional door/drawer articulation.

| Need | Representation | Why |
| --- | --- | --- |
| Hero or enemy character with a walk and attacks | imported rigged mesh (this skill, or the CC0 library: Quaternius, KayKit, Mixamo motions) | skinning, retargetable clips; procedural rigs read as mannequins |
| Weapon, prop, creature variant where silhouette, sockets, collision or code-driven variants matter | procedural three.js geometry or a small GLB kit part | controllable, cheap to vary per instance |
| Concept, icon, backdrop, card art | a generated 2D image used directly | never rebuilt as geometry |
| A reference image whose visible FORM must become a code model | `img2threejs` with its gates; say the result is a reconstruction, not extracted geometry | likeness is judged, not measured |

Pick once at the blueprint or stack-selection stage and record it with provenance (source, licence,
metres per unit, forward axis). Design after MengTo/Skills build-hybrid-game-assets (MIT).

## 1. The recipe

The concept image is the spec, not decoration. For every asset in a kit:

1. **Model every piece in Blender from the concept image** using loft/recess/
   greeble (§3). Grey-clay render it before touching a texture (§4, §10) —
   box-stacking hides under any lighting rig except flat grey + one hard key.
2. **Use a fitting registered photographic texture set or an image model** for
   photographic surfaces (ground, foliage, cloth). Record origin, license and
   physical scale; matching normal/roughness maps must remain aligned. Use an
   existing suitable licensed scan before generating a replacement; use Cycles nodes only for what
   genuinely varies by geometry (edge wear, per-plate tone), and flatten
   before export (§6).
3. **Screenshot-vs-concept loop.** Render next to the concept, same angle if
   possible, compare. Judge by measured numbers where you can (§10: tone
   percentiles, AO floor, draw calls), by eye where you can't (silhouette,
   chamfer read, material believability). Iterate until it reads as the
   concept, not until it "looks 3D".
4. **Export once clay AND texture both hold up.** A model that's flat-correct
   in clay but goes muddy after baking has a material bug, not a modelling
   bug — don't re-model to fix a bad bake.

## 2. Headless setup on gex44

Blender 5.2.0 LTS, x64, RTX 4000 Ada, at
`/root/blender-spike/blender-5.2.0-linux-x64/blender`.

**A. Direct subprocess** (matches the source game's `build_*.py` pattern):
```python
BLENDER = "/root/blender-spike/blender-5.2.0-linux-x64/blender"
cmd = [BLENDER, "--background", "--factory-startup", "--python-exit-code", "1", "--python", __file__,
       "--", "BUILD"] + extra_args
# script: `if 'BUILD' in sys.argv: blender_main(...)` else `drive(...)`
```
Split into `drive()` (host: subprocess + result check) and `blender_main()`
(only imports `bpy`/`bmesh` — importing them outside `-b` crashes with no
display). **Without `--python-exit-code 1`, Blender can exit 0 after a Python error.**
Set that flag, check the exit code and logs, and verify fresh output files.
Mesh/export validation still matters: a successful process is not visual proof.

**B. gex44 exec service** (`/opt/astra-blender/blender_exec_server.py`,
loopback `:8793`, token-guarded): POST a python script, get back stdout plus
render paths, for interactive iteration without a subprocess per call. Same
headless constraint — the script is a `blender_main`-shaped body, no GUI code.

Outputs land in the app's `public/models/` (or the GameKit pack's asset dir)
as `.glb` + `.webp`. Draft render: 64 samples / 1280x720 ≈ 2 s on an M-series
GPU (source game, Apple Silicon) — **gex44/RTX 4000 Ada timing is
unmeasured; get one real number before quoting a render budget.**

## 3. Modelling: loft, recess, greeble

Three techniques, in order of impact.

**Loft cross-sections, never stack primitives.**
```python
def oct_ring(w, h, cx, cz):
    a, b = w * 0.5, h * 0.5
    return [( a, b-cz), ( a-cx,  b), (-(a-cx),  b), (-a,  b-cz),
            (-a, -(b-cz)), (-(a-cx), -b), ( a-cx, -b), ( a, -(b-cz))]

def loft(name, sections, mat):    # sections: (y, w, h, cx, cz, dz)
    bm = bmesh.new()
    rings = [[bm.verts.new((x, y, z+dz)) for (x, z) in oct_ring(w, h, cx, cz)]
             for (y, w, h, cx, cz, dz) in sections]
    for A, B in zip(rings, rings[1:]):
        for i in range(8):
            j = (i+1) % 8
            bm.faces.new((A[i], A[j], B[j], B[i]))
    bm.faces.new(list(reversed(rings[0]))); bm.faces.new(rings[-1])
```
Keep the profile **stepped, not tapered** — a parallel midbody, a shoulder, a

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codex
The GLB passes the geometry and material checks, and all 20 turret and gun pivots stay in place during the 30° rotation test. The browser view also preserves the baked materials. The bow still looks too plain beside the reference, so I’m refining its armour seams and lowering the render exposure.

hook: PreToolUse
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exec
/bin/bash -lc "cat /home/claude-agent/.agents/skills/blender-game-assets/reference/critic-loop.md; tail -n 70 /tmp/heavy-cruiser-naval-check/critic-final.txt; sed -n '210,290p' build_heavy-cruiser-naval.py; sed -n '610,705p' build_heavy-cruiser-naval.py" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
<!-- Distilled from vercel-labs/vgpu .claude/skills/vgpu-agent-flow/references/asset-iteration.md and
.subharness/agents/asset-author.ts + asset-critic.ts at commit 68cb1d8d198c (MIT, Copyright (c) 2025 Vercel, Inc.),
rewritten for Forge lanes (forge-agent, Astra author, a second model family as critic). -->

# Author and critic loop for a Blender asset

Use this for any authored asset that will be judged by eye: a hero prop, a character, a building, an
environment. Skip it for a mechanical re-export.

## Seats

| Seat | Who | Owns |
| --- | --- | --- |
| Author | Astra (operator law: Blender work goes to Astra) | Geometry, authored materials, UVs, bakes, Blender renders, the export |
| Runtime | The root, or one worker when the shader work is real | Loading the export in the game's actual three.js path, captures, measured costs |
| Critic | A different model family from the author, reading the real images | Findings only. Never edits the asset |

The critic must open the actual capture files. A critic that cannot read images says so and returns
BLOCKED; it never writes a visual verdict from metrics or from the author's description.

## Budget

- Default: **3 revisions, at most 2 critic passes per revision.** The brief may set another cap.
- A cap is an execution limit, not acceptance. Cap reached with open visual findings = `REVISE`
  reported as such, never a `PASS`.
- No unattended improvement loop past the cap.

## Before the first render

Write in the task folder: scope, target cameras (gameplay view, hero, rear, closest required view),
output paths, budgets (triangles, exported vertices, texture bytes and GPU memory, draw calls) and
the revision cap. Budgets are task inputs; do not copy another asset's numbers.

Run the [preflight](preflight-and-recovery.md) once: Blender starts and runs a scene operation, a
tiny bake and export round-trips through the real loader, one real runtime frame is captured.

Integrate a cheap LOW blockout in the runtime at this stage. Scale, axis, camera and material
contract problems are found before an expensive bake, not after.

## Each revision keeps

- the source revision or parameters that rebuild the previous asset;
- real hero, rear and close-up captures, same camera, light, exposure and pose every time;
- triangles, exported vertices, primitives, material count, file bytes, texture GPU memory;
- runtime draw counters, kept apart from offline estimates;
- the critic's findings, the fixes chosen, and the next measured result.

## The critic pass

The critic receives the previous AND the current captures and metrics under matched cameras (or
an explicit "first revision, no baseline"), the reference image, and the brief. It returns:

- **at most five findings**, ordered by impact, each with a stable id, the evidence path (whole
  view plus crop or image coordinates), the visible symptom, a suggested correction and a
  **measurable acceptance condition**;
- regressions against the previous revision;
- resolved / remaining / regressed status of earlier findings on a follow-up pass;
- `PASS`, `REVISE` or `BLOCKED`, with the limits of its evidence.

It compares against the reference as well as the previous revision: clean topology and progress
since last time do not make the asset match the reference. It separates the observed defect from
the suspected cause. A small whole-image difference can hide severe local damage (thin trim,
stairs, silhouette edges): it inspects crops at each delivered LOD. Design ideas are suggestions,
not new acceptance requirements.

When the cause could be the asset or the renderer, it asks for the diagnostic captures in
[runtime parity](runtime-parity-and-diagnostics.md) (maps off, AO neutral, lightmap off) rather
than guessing.

## Rules that stop false passes

- A generated concept image is never proof of a working model. Label concepts as concepts; accept
  only on real renders of the real export.
- Requested bakes need bake provenance (what was baked, from what, at what settings) and matched
  runtime captures with each contribution switched off in turn. Vertex tint and runtime shadows
  are not substitutes for a requested AO or lightmap bake.
- An atlas repair is checked on the full matched views, not only on the crop that was broken: a new
  layout can fix one edge and turn another face black.
- One writer per handoff file. A reply never gets appended to a request file another agent will
  regenerate. Superseded manifests and failed captures stay on disk.
- The author hands the root a compact result: verdict, the few decisive images, the metrics table.
  Full capture sets stay on disk; the root does not load every image.
- A user's rejection or a changed brief reopens any earlier `PASS`.

## Lessons

When a revision teaches something that will recur, write it as: evidence path, symptom, cause,
intervention, matched before/after result, scope. The root checks it and makes a narrow edit to this
skill. Reject task-specific style preferences dressed up as general rules.
**Verdict:  bm.verts.ensure_lookup_table(); bm.verts.index_update(); off=len(self.v)
  self.v += [tuple(x.co) for x in bm.verts]
  for face in bm.faces:
   self.f.append(tuple(off+x.index for x in face.verts)); self.mi.append(mat); self.sm.append(smooth and len(face.verts)==4)
  bm.free()
 def box(self,c,d,mat=0,b=.12,rot=None):
  v=[Vector((x*d[0]/2,y*d[1]/2,z*d[2]/2)) for x,y,z in [(-1,-1,-1),(1,-1,-1),(1,1,-1),(-1,1,-1),(-1,-1,1),(1,-1,1),(1,1,1),(-1,1,1)]]
  if rot:v=[rot@p for p in v]
  v=[tuple(p+Vector(c)) for p in v]
  self.add(v,[(0,3,2,1),(4,5,6,7),(0,1,5,4),(1,2,6,5),(2,3,7,6),(3,0,4,7)],mat,min(b,min(d)*.22))
 def loft(self,sections,mat=0,b=.2):
  # z-oriented chamfered rectangle rings: z, halfwidth, halfdepth, ycenter, chamfer
  v=[]
  for z,w,l,y,c in sections:
   v.extend([(w-c,y-l,z),(w,y-l+c,z),(w,y+l-c,z),(w-c,y+l,z),(-w+c,y+l,z),(-w,y+l-c,z),(-w,y-l+c,z),(-w+c,y-l,z)])
  f=[tuple(reversed(range(8))),tuple(range(len(v)-8,len(v)))]
  for j in range(len(sections)-1):
   for i in range(8):f.append((j*8+i,j*8+(i+1)%8,(j+1)*8+(i+1)%8,(j+1)*8+i))
  self.add(v,f,mat,b)
 def cyl(self,a,b,r,mat=1,n=12,r2=None):
  a=Vector(a); b=Vector(b); d=b-a; q=d.to_track_quat('Z','Y'); r2=r if r2 is None else r2
  # profiled bevel at each end
  h=d.length; e=min(.12,r*.11,h*.14); pr=[(0,max(.01,r-e)),(e,r),(h-e,r2),(h,max(.01,r2-e))]
  v=[tuple(a+q@Vector((rr*cos(i*2*pi/n),rr*sin(i*2*pi/n),z))) for z,rr in pr for i in range(n)]
  f=[tuple(reversed(range(n))),tuple(range(3*n,4*n))]
  for j in range(3):
   for i in range(n):f.append((j*n+i,j*n+(i+1)%n,(j+1)*n+(i+1)%n,(j+1)*n+i))
  self.add(v,f,mat,0,True)
 def tube(self,c,profile,mat=1,n=48,axis='Y'):
  # closed lathed sectional profile; explicit inner wall gives real nozzle / muzzle depth
  v=[]
  for along,r in profile:
   for i in range(n):
    a=2*pi*i/n; v.append((c[0]+r*cos(a),c[1]+along,c[2]+r*sin(a)) if axis=='Y' else (c[0]+r*cos(a),c[1]+r*sin(a),c[2]+along))
  f=[]
  for j in range(len(profile)):
   j2=(j+1)%len(profile)
   for i in range(n):f.append((j*n+i,j*n+(i+1)%n,j2*n+(i+1)%n,j2*n+i))
  self.add(v,f,mat,0,True)
 def create(self):
  mesh=bpy.data.meshes.new(self.name); mesh.from_pydata(self.v,[],self.f); mesh.update()
  ob=bpy.data.objects.new(self.name,mesh); bpy.context.collection.objects.link(ob)
  for m in MATS:mesh.materials.append(m)
  for p,mi,sm in zip(mesh.polygons,self.mi,self.sm):p.material_index=mi;p.use_smooth=sm
  bm=bmesh.new();bm.from_mesh(mesh);bmesh.ops.dissolve_degenerate(bm,dist=1e-6,edges=list(bm.edges))
  dead=[f for f in bm.faces if f.calc_area()<1e-9]
  if dead:bmesh.ops.delete(bm,geom=dead,context='FACES')
  bm.to_mesh(mesh);bm.free();mesh.update()
  uv=mesh.uv_layers.new(name='UVMap')
  for p in mesh.polygons:
   axis=max(range(3),key=lambda i:abs(p.normal[i])); scale=12 if p.material_index==0 else (8 if p.material_index==4 else 3.2)
   for li in p.loop_indices:
    co=mesh.vertices[mesh.loops[li].vertex_index].co
    a,b=(co.y,co.z) if axis==0 else ((co.x,co.z) if axis==1 else (co.x,co.y))
    uv.data[li].uv=(a/scale,b/scale)
    if p.material_index==8:
     uv.data[li].uv=(a/4,b)
    if p.material_index==6:
     cx,cz=min([(-12,11),(12,11),(-21,-3),(21,-3),(-12,-17),(12,-17)],key=lambda xz:(co.x-xz[0])**2+(co.z-xz[1])**2)
     uv.data[li].uv=((co.x-cx)/10.6+.5,(co.z-cz)/10.6+.5)
    if p.material_index==7:
     avgx=sum(mesh.vertices[i].co.x for i in p.vertices)/len(p.vertices)
     uv.data[li].uv=((.5 if avgx>33 else .84) if abs(avgx)>33 else .16,.5)
  ob.location=self.pivot; ob.rotation_euler=self.rot
  if self.parent:ob.parent=ASSEMBLIES[self.parent].ob
  self.ob=ob; return ob

def socket(name,p,parent='Hull',rot=(0,0,0),**meta):SOCKETS.append((name,p,parent,rot,meta))
def pipe(p,points,r=.18,mat=1):
 for a,b in zip(points,points[1:]):p.cyl(a,b,r,mat,8)
def rail(p,points):
 for pos in points:p.cyl(pos,(pos[0],pos[1],pos[2]+1.1),.055,1,8)
 for h in [.45,1.1]:pipe(p,[(x,y,z+h) for x,y,z in points],.045)
def bolts(p,c,dx,dy,z,mat=1):
 for x in [-dx,dx]:
  for y in [-dy,dy]:p.cyl((c[0]+x,c[1]+y,z),(c[0]+x,c[1]+y,z+.12),.14,mat,6)

def build_geometry():
 H=Part('Hull')
 # Eight-sided naval hull with asymmetric height and a long flared, raked ram.
 stations=[(-225,4.4,-19,13),(-207,8,-21,15),(-176,15,-22,16),(-133,23,-23,17),(-82,27,-24,18),(20,29,-24,18),(102,28,-23,18),(160,25,-20,16),(184,21,-17,14)]
 cam.rotation_euler=(target-cam.location).to_track_quat('-Z','Y').to_euler()

def render(path,w=1920,h=1080,samples=64):
 SC.render.resolution_x=w;SC.render.resolution_y=h;SC.cycles.samples=samples;SC.render.filepath=str(path);bpy.ops.render.render(write_still=True);log('Rendered '+str(path.name))

def patch_glb(path):
 data=path.read_bytes();jl=struct.unpack_from('<I',data,12)[0];doc=json.loads(data[20:20+jl]);blob=data[20+jl:]
 for m in doc.get('materials',[]):
  if m['name']=='Paint':m['pbrMetallicRoughness']['baseColorFactor']=[*PAINTS[0][1],1]
  if m['name']=='Glass':m['alphaMode']='BLEND';m['doubleSided']=True
 raw=json.dumps(doc,separators=(',',':')).encode();raw+=b' '*((-len(raw))%4)
 path.write_bytes(struct.pack('<4sII',b'glTF',2,20+len(raw)+len(blob))+struct.pack('<I4s',len(raw),b'JSON')+raw+blob)
 return doc

def export():
 bpy.ops.object.select_all(action='DESELECT')
 for o in SC.objects:
  if o.type in ['MESH','EMPTY']:o.select_set(True)
 path=ROOT/'heavy-cruiser-naval.glb'
 bpy.ops.export_scene.gltf(filepath=str(path),export_format='GLB',use_selection=True,export_yup=True,export_apply=False,export_image_format='JPEG',export_jpeg_quality=82,export_texcoords=True,export_normals=True,export_materials='EXPORT',export_cameras=False,export_lights=False,export_animations=False)
 doc=patch_glb(path)
 if path.stat().st_size>12_000_000:raise RuntimeError('GLB over budget: '+str(path.stat().st_size))
 log('GLB bytes '+str(path.stat().st_size))
 # Metadata is exported in glTF coordinates, matching the actual world placement.
 def cv(v):return [round(v[0],5),round(v[2],5),round(-v[1],5)]
 meshobs=[o for o in SC.objects if o.type=='MESH'];pts=[o.matrix_world@Vector(c) for o in meshobs for c in o.bound_box]
 pp=[cv(p) for p in pts];lo=[min(p[i] for p in pp) for i in range(3)];hi=[max(p[i] for p in pp) for i in range(3)]
 tris=sum(sum(len(p.vertices)-2 for p in o.data.polygons) for o in meshobs)
 nd={}
 for o in SC.objects:
  if o.type not in ['MESH','EMPTY']:continue
  nd[o.name]={'world_position':cv(o.matrix_world.translation),'parent':o.parent.name if o.parent else None,'type':'mesh' if o.type=='MESH' else 'socket'}
  if o.name in MOVING:nd[o.name].update(MOVING[o.name])
 meta={'asset':'heavy-cruiser-naval','units':'metres','origin':'Approximate centre of mass, middle of the main hull','texture_repeat_metres':{'Paint':12,'Metal':3.2,'Deck':8,'Trim':[4,1]},'coordinate_system':{'up':'+Y','nose':'+Z','left':'+X'},'bounding_box':{'min':lo,'max':hi,'size':[round(hi[i]-lo[i],4) for i in range(3)]},'triangles':tris,'materials':[m.name for m in MATS],'nodes':nd,'axes':{k:v['axis'] for k,v in MOVING.items()},'paints':[{'name':n,'linear_rgb':c} for n,c in PAINTS]}
 (ROOT/'nodes.json').write_text(json.dumps(meta,indent=2))
 (ROOT/'NOTES.md').write_text('\n'.join([
 'Original 450 × 70 × 90 m naval space cruiser: four triple main turrets, six twin flank turrets, 32 missile cells, six engines; pivoted weapons and game sockets.',
 f'{tris:,} triangles; {len(meshobs)} mesh nodes; GLB {path.stat().st_size/1048576:.2f} MiB; Y up, +Z nose, +X port, metre units.',
 '9 materials: Paint, Metal, Dark, Weapons, Deck, Glass (BLEND), Engines, Lamps, Trim; neutral Paint bake with default linear factor [0.32, 0.34, 0.36].',
 'Cycles GPU tile bakes: Base/Normal 1024² and ORM 512² (Glass/Engines/Lamps 32²); shared world-scale UVs and 4 × 1 m vent trims; JPEG embedded in GLB; no external runtime files.',
 'Poly Haven CC0 ids: metal_plate, rusty_metal_04; https://polyhaven.com/a/metal_plate ; https://polyhaven.com/a/rusty_metal_04 ; licence https://polyhaven.com/license .',
 'Reference differences: original faceted ram and bridge detailing, six hex-arranged nozzles; restrained patina for vacuum service, no markings; no interior beyond bridge console silhouettes.'
 ])+'\n')
 assert 80000<=tris<=200000, ('Triangle budget',tris)
 return meta

def main():
 download()
 for name,kind in [('Paint','paint'),('Metal','metal'),('Dark','dark'),('Weapons','weapon'),('Deck','deck'),('Glass','glass'),('Engines','engine'),('Lamps','lamp'),('Trim','trim')]:bake_material(name,kind)
 build_geometry();cam=setup_lighting();camera_view(cam)
 clay=bpy.data.materials.new('QA_Clay');clay.use_nodes=True;clay.node_tree.nodes.get('Principled BSDF').inputs['Base Color'].default_value=(.35,.35,.35,1);clay.node_tree.nodes.get('Principled BSDF').inputs['Roughness'].default_value=.7
 SC.view_layers[0].material_override=clay;render(ROOT/'clay.png',1920,1080,24);SC.view_layers[0].material_override=None
 meta=export()
 # Prove pivots: every turret +30 degrees traverse, every barrel +30 elevation.
 original={name:tuple(bpy.data.objects[name].rotation_euler) for name in MOVING}
 local_positions={name:bpy.data.objects[name].location.copy() for name in MOVING}
 for name in MOVING:
  ob=bpy.data.objects[name];local_axis='Z' if name.startswith('Turret') else 'X'
  ob.rotation_euler=(ob.rotation_euler.to_matrix() @ Matrix.Rotation(math.radians(30),3,local_axis)).to_euler()
  assert (ob.location-local_positions[name]).length<1e-7
 bpy.context.view_layer.update();render(QA/'motion-test.png',1280,720,20)
 for name,e in original.items():bpy.data.objects[name].rotation_euler=e
 bpy.context.view_layer.update();camera_view(cam);render(ROOT/'final.png')
 camera_view(cam,'side');render(ROOT/'side.png',1920,1080,28)
 camera_view(cam,'rear');render(QA/'rear.png',1280,720,24)
 camera_view(cam,'close');render(QA/'close.png',1280,720,24)
 camera_view(cam)
 tint=MATS[0].node_tree.nodes['FactionTint'];imgs=[]
 for i,(name,c) in enumerate(PAINTS):
  tint.inputs[2].default_value=(*c,1);p=QA/f'paint-{i}.png';render(p,640,360,16)
  im=bpy.data.images.load(str(p));arr=np.array(im.pixels[:],dtype=np.float32).reshape(360,640,4);imgs.append(arr)
 tint.inputs[2].default_value=(*PAINTS[0][1],1)
 grid=np.ones((720,1920,4),np.float32)
 for i,ar in enumerate(imgs):
  row=1-i//3;col=i%3;grid[row*360:(row+1)*360,col*640:(col+1)*640]=ar
 im=bpy.data.images.new('SixPaints',width=1920,height=720);im.pixels.foreach_set(grid.ravel());im.filepath_raw=str(ROOT/'paints.png');im.file_format='PNG';im.save()
 # Keep a source checkpoint remotely, while the self-contained script is the portable source of truth.
 bpy.ops.wm.save_as_mainfile(filepath=str(QA/'cruiser.blend'))
 (QA/'build-report.json').write_text(json.dumps({'elapsed_seconds':time.time()-START,'device':SC.cycles.device,'triangles':meta['triangles'],'moving_nodes_tested':list(MOVING),'bake_engine':'Cycles','bake_samples':8,'source_ids':['metal_plate','rusty_metal_04']},indent=2))
 log('COMPLETE')
if __name__=='__main__':main()

 succeeded in 57557ms:
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
hook: PreToolUse Completed
exec
/bin/bash -lc 'tail -n 80 /tmp/heavy-cruiser-naval-check/critic-final.txt; cat qa/audit-final.json | head -n 45; cat qa/khronos-final.json | head -n 25' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
**Verdict: REVISE**

The model nails the overall battleship layout and clean turret/bridge modeling within the 200k-triangle and 9-material budget, but fails capital-ship scale and material fidelity on the mid-hull and primary paint.

### Comparison ([sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg) vs. [final.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/final.png), [side.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/side.png), [close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png), [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png))

| Category | Assessment |
| --- | --- |
| **Silhouette** | Strong 5:1 length-to-height ratio, reverse-sloped bow ram, stepped forward turrets, and tall central bridge match [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg). Broken in [side.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/side.png) by an abrupt vertical step where the bow cheek slab stops, and a missing rear ventral turret. |
| **Named ship parts** | **Main gun turrets** (3x triple-barrel) and **bridge** have crisp rangefinders, recoil sleeves, and dark glass ([close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png)). **Engine cluster** has all 6 nozzles ([rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png)). **Missile batteries** are small angled box pods instead of heavy cylindrical tube racks. **Secondary turrets** use 3 smaller broadside mounts per side instead of 2 heavy mounts, and omit the aft ventral mount. |
| **Material realism** | Weakest area. Hull paint in [final.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/final.png) is a chalky, uniform light grey that reads like unpainted plastic rather than dark weathered battleship steel. Engine nozzles in [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png) lack bronze/soot heat-scorch tinting and have weak blue glow. |
| **Production quality** | Clean hard-surface bevels, no shading flaws, and well-budgeted geometry in [close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png). However, repeating giant double-door and grate modules along the broadside destroys the 450 m scale (each door reads as ~18 m tall). |

### Top 3 Highest-Impact Fixes

1. **Replace the broadside door/grate repetition with longitudinal armor belt plating**: Remove the 6 oversized double-door and grate bays along the mid-hull in [side.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/side.png) and [close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png). Extend the tapered bow chine into a continuous horizontal armor belt with micro-scale hatches and vents that respect a 450 m hull.
2. **Darken hull grey and add two-tone armor contrast**: Lower the primary hull albedo to dark battleship grey, assign a darker secondary grey to recessed hull tiers and deck plates, and increase roughness variation so the 1024 tiling metal reads as weathered naval armor rather than flat primer.
3. **Boost engine emissive + heat scorch and add the aft ventral turret**: Increase the blue emission strength and core falloff on the 6 stern nozzles in [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png), add warm bronze/charcoal heat-scorch tinting to the nozzle shrouds, and duplicate the forward ventral secondary turret to the aft ventral mount shown in [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg).

---

0. **Blocked on you**: nothing.
1. **What you changed**: Nothing on disk; this was a read-only visual inspection of the 5 cruiser images.
2. **How you know it works**: Inspected [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg), [final.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/final.png), [side.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/side.png), [close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png), and [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png) directly.
3. **What would break if you were wrong**: Shipping as-is would put a cruiser in-game that looks miniature and untextured next to darker, scale-accurate ships; no files were altered so nothing needs undoing.
4. **What you did NOT do**: Did not open Blender, inspect the `.blend` or `.glb` mesh stats directly, or edit any files.
{
  "file": "heavy-cruiser-naval.glb",
  "sha256": "4b07fedf0663cc1c183805a0d4e3a68fc3877358147d0042a7a115883ec74ebe",
  "bytes": 10923908,
  "primitive_count": 39,
  "material_count": 9,
  "embedded_images": 27,
  "external_uris": [],
  "primitives": [
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      "mesh": "Gun_1",
      "primitive": 0,
      "triangles": 1584,
      "zero_area_triangles": 0,
      "nonfinite_attribute_components": 0
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      "mesh": "Gun_1",
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      "zero_area_triangles": 0,
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      "primitive": 2,
      "triangles": 324,
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      "mesh": "Turret_1",
      "primitive": 0,
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      "mesh": "Turret_1",
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      "zero_area_triangles": 0,
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    },
    {
{
  "mimeType": "model/gltf-binary",
  "validatorVersion": "2.0.0-dev.3.10",
  "validatedAt": "2026-10-16T19:58:09.587Z",
  "issues": {
    "numErrors": 0,
    "numWarnings": 39,
    "numInfos": 61,
    "numHints": 0,
    "messages": [
      {
        "code": "MESH_PRIMITIVE_GENERATED_TANGENT_SPACE",
        "message": "Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.",
        "severity": 1,
        "pointer": "/meshes/0/primitives/0/material"
      },
      {
        "code": "MESH_PRIMITIVE_GENERATED_TANGENT_SPACE",
        "message": "Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.",
        "severity": 1,
        "pointer": "/meshes/0/primitives/1/material"
      },
      {
        "code": "MESH_PRIMITIVE_GENERATED_TANGENT_SPACE",
        "message": "Material requires a tangent space but the mesh primitive does not provide it. Runtime-generated tangent space may be non-portable across implementations.",

hook: PreToolUse
hook: PreToolUse
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exec
/bin/bash -lc "cp build_heavy-cruiser-naval.py /tmp/heavy-cruiser-naval-check/before-armour.py
python3 - <<'PY'
p='build_heavy-cruiser-naval.py'
s=open(p).read().replace(\"sc.view_settings.exposure=.10\",\"sc.view_settings.exposure=-.85\")
s=s.replace(\"(-82,28.3,11,-20)]\",\"(-82,28.3,11,-20),(-58,25.6,4,-15)]\")
needle=\"  # layered lower armour rail following the curve of the hull\"
insert='''  # Real inset armour strakes, fitted to the curved bow rather than pasted rectangles.
  def cheek(y,t,lower=False,offset=.14):
   for aa,bb in zip(rings,rings[1:]):
    if aa[0]<=y<=bb[0]:
     f=(y-aa[0])/(bb[0]-aa[0]);w=aa[1]*(1-f)+bb[1]*f;top=aa[2]*(1-f)+bb[2]*f;bot=aa[3]*(1-f)+bb[3]*f
     mid=(top+bot)*.5
     x=(w+1.9)*(1-t)+(w-1.6)*t if lower else w*(1-t)+(w+1.9)*t
     z=mid*(1-t)+bot*t if lower else (top-3)*(1-t)+mid*t
     return (sign*(x+offset),y,z)
  for aa,bb in zip(rings[1:4],rings[2:5]):
   steps=math.ceil((bb[0]-aa[0])/19)
   for k in range(steps):
    a=aa[0]+(bb[0]-aa[0])*k/steps+.35;b=aa[0]+(bb[0]-aa[0])*(k+1)/steps-.35
    for lower in [False,True]:
     pts=[cheek(a,.13,lower),cheek(b,.13,lower),cheek(b,.87,lower),cheek(a,.87,lower)]
     vs=pts+[(x-sign*.28,y,z) for x,y,z in pts]
     H.add(vs,[(0,1,2,3),(7,6,5,4),(0,4,5,1),(1,5,6,2),(2,6,7,3),(3,7,4,0)],0,.06)
'''
s=s.replace(needle,insert+needle)
s=s.replace(\"H.box((s*32.65,y,-1),(.3,.22,12.4),2,.04)\",\"H.box((s*32.65,y-2,-3),(.25,2.3,3.5),2,.07)\\n   H.box((s*32.81,y-2,-3),(.12,1.6,2.8),1,.04)\\n   H.box((s*32.9,y-2,-2.35),(.09,.75,.45),5,.02)\")
s=s.replace(\"(.35,1.2,.45),2,.08)\",\"(.25,.55,.24),2,.045)\")
# These bays contain machinery, with solid armour belt coverage above and below.
s=s.replace(\"for zz in [-7,-3,1]:\",\"for zz in [-5.5,-3,-.5]:\")
s=s.replace(\"for yy in [y-8,y+8]:H.box((x+s*1.45,yy,-3),(1.1,1.7,12),2,.13)\",\"for yy in [y-8,y+8]:H.box((x+s*1.45,yy,-3),(1.1,1.7,8),2,.13)\\n   H.box((x+s*.95,y,2.0),(1.2,26,3.5),0,.16)\\n   H.box((x+s*.95,y,-8.0),(1.2,26,3),0,.16)\")
# Warm oxidised nozzle rims use the already shared dark alloy; body metals stay cool.
s=s.replace(\"'reference differences':\", \"'reference differences':\")
open(p,'w').write(s)
PY
python3 -m py_compile build_heavy-cruiser-naval.py" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "python3 - <<'PY'
p='build_heavy-cruiser-naval.py';s=open(p).read().replace(\"\\n   H.box((x+s*.95,y,-8.0),(1.2,26,3),0,.16)\",\"\");open(p,'w').write(s)
PY
scp build_heavy-cruiser-naval.py gex44:/root/fal-author/heavy-cruiser-naval-v1/" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 712ms:
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exec
/bin/bash -lc 'ssh gex44 /root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py > /tmp/heavy-cruiser-naval-check/build-armour.log 2>&1' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "rg --files qa; cat job.json; sed -n '1,100p' /tmp/heavy-cruiser-naval-check/runtime-check.cjs" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
qa/rear.png
qa/contract-final.json
qa/revision-1.png
qa/runtime-maps-off.png
qa/side-r2.png
qa/runtime-r1.png
qa/build-report.json
qa/audit-final.json
qa/rear-r3.png
qa/revision-1.py
qa/runtime-r2.json
qa/contract.json
qa/runtime.png
qa/visual-review-r2.txt
qa/audit.json
qa/close.png
qa/runtime-motion.png
qa/contract-r2.json
qa/khronos-final.json
qa/revision-2.png
qa/side-r3.png
qa/runtime-final.json
qa/clay-r2.png
qa/revision-2.py
qa/close-r2.png
qa/revision-3.png
qa/runtime-r2.png
qa/audit-r2.json
qa/runtime-close.png
qa/close-r3.png
qa/motion-test.png
qa/runtime-r1.json
qa/rear-r2.png
qa/khronos-r2.json
{
 "id": "vehicle.space.cruiser/heavy-cruiser-naval",
 "version": 1,
 "name": "heavy space cruiser in wet-navy battleship style: a long ship-like hull with a sharp flared bow, a stepped bridge superstructure, three triple-barrel main gun turrets on top and one under the hull, secondary twin turrets along the flanks, missile batteries, a big engine cluster at the stern (the one on sheet.jpg)",
 "title": "Heavy cruiser (naval style)",
 "slug": "heavy-cruiser-naval",
 "refs": [
  "sheet.jpg"
 ],
 "size": "450 m long, 70 m wide, 90 m high",
 "tris": "80k to 200k",
 "mats": 9,
 "effort": "xhigh",
 "frame": "Nose toward +Z, up = +Y, +X = the ship's LEFT side, centred on X = 0; origin (0,0,0) at the ship's centre of mass (about the middle of the hull), the ship level and flying: landing gear, if the design has any, is RETRACTED with its doors closed.",
 "nodes": "GAME WEIGHT overrides the budget above: every texture image at most 1024 px, ORM / occlusion maps at most 512 px; share baked texture sets between parts and use tiling materials + trim textures on big surfaces. BIG SHIP: a 1024 bake cannot hold a hull this size: use tiling hull-plate materials and trim textures (panel strips, window strips, vents) with world-scale UVs. Detail must read at three distances: the silhouette (big masses, towers, engine blocks), the middle (superstructure, turrets, hangar mouths, antenna forests, armour belts) and close up (greebles, pipes, panel seams, rows of lit windows at human scale). Small parts may be instanced/linked duplicates. Separate named mesh nodes: Hull (everything fixed to the hull). Every MOVING part is its own node with its object origin ON its pivot: Turret_1..Turret_n (each gun turret, origin on its vertical traverse axis, turns about its local Y) each with a child Gun_1..Gun_n (the barrels, origin on the elevation trunnion axis, elevates about X); Canopy (cockpit canopy, origin on its hinge) on craft with a canopy; and the extra moving parts named in the description. Empty nodes (no mesh): Thruster_1..Thruster_n at the centre of every main engine nozzle exit (games put flame and glow there; exhaust points to -Z), Muzzle_1..Muzzle_n at every barrel tip (child of its Gun, or of Hull for fixed guns), Hardpoint_1..n (missile and torpedo launch points), Seat_Pilot (pilot hip point) on craft with a cockpit, Camera_Chase (a good third-person chase camera point behind and above), Light_Nav_L (left tip, red), Light_Nav_R (right tip, green), Light_Beacon. Materials: the glowing inside of every engine nozzle = one material named \"Engines\" (emissive, colour as described, modest strength, games raise it); lit windows, running lights and glowing details = one material \"Lamps\" (emissive); cockpit or bridge glazing = one material \"Glass\" (alpha BLEND, tinted) with a visible cockpit (seat, panels, stick) behind it on small craft. In nodes.json add \"axes\": for every moving node, the unit axis it turns about in its parent's space. PAINT CONTRACT (how games get faction colours of one model): the main hull colour lives in ONE material named exactly \"Paint\". Its base colour TEXTURE holds only light neutral detail (near white, with panel lines, grey grime, engine scorch, micro-meteorite pitting and chipped edges baked in) and its baseColorFactor holds the paint colour; default factor = [0.32, 0.34, 0.36] (dark grey). A game changes that factor, so nothing else (bare metal, engines, glass, lamps, weapons, cockpit) may use Paint. In nodes.json add \"paints\": six good paints for this model as linear RGB triples with names, the default first, in the spirit of: naval grey, gunmetal, olive drab, desert sand, arctic white, deep navy, black, crimson; and render paints.png: a 3x2 grid of the same 3/4 view in those six paints (EEVEE or low-sample Cycles) to prove the recolour works. MOVING PARTS: never apply transforms to a moving node. Check it in Blender before export: rotate each moving node 30 degrees in a test render; nothing may leave its place. No text, numbers, insignia, faction emblems, flags or logos anywhere (games add their own factions). ORIGINAL DESIGN: never model a famous film, TV, anime or game ship (no X-wing, TIE, Star Destroyer, Millennium Falcon, Enterprise, Serenity, Normandy, Viper, Valkyrie, Gundam, Halo, Homeworld, EVE, Elite or Expanse ship): if the sheet looks like one, keep its proportions and parts but make the silhouette details, nose and engines your own. RENDERS: final.png and paints.png on a dark space backdrop (near black with a faint blue gradient, no ground) lit by a strong white key light from the upper front left plus a soft cool fill, so every part reads. Keep this directory clean: put any helper tools you install (node_modules, vendored three.js, browser checks) under /tmp, never here. Pace: deliver a first complete GLB within about 40 minutes, then use what is left of about 80 minutes to improve what the renders show is weakest. Use Cycles with the GPU (OptiX/CUDA) and modest samples for bakes and renders. ",
 "family": "cruisers",
 "pen": "astra",
 "tags": [
  "cruiser",
  "naval",
  "heavy",
  "big"
 ],
 "contract": "spacecraft/v1"
}const{chromium}=require('playwright');const path=require('path');(async()=>{
 const b=await chromium.launch({executablePath:'/home/claude-agent/.cache/ms-playwright/chromium-1223/chrome-linux/chrome',headless:true,args:['--no-sandbox','--use-angle=swiftshader','--enable-unsafe-swiftshader']});
 const p=await b.newPage({viewport:{width:1600,height:900}});const errors=[];p.on('pageerror',e=>errors.push(String(e)));await p.goto('http://127.0.0.1:8839');await p.waitForFunction(()=>window.ready,{timeout:120000});
 const dest=process.argv[2];await p.screenshot({path:path.join(dest,'runtime.png')});
 const report=await p.evaluate(async()=>{
  const T=await import('three');const result={...window.result,checks:[]};const find=n=>asset.getObjectByName(n);const before={};
  asset.traverse(o=>{if(/^Turret_|^Gun_/.test(o.name))before[o.name]={p:o.position.clone(),q:o.quaternion.clone()}});
  let axesOK=true,muzzleOK=true,pivotsOK=true;
  for(let i=1;i<=10;i++){
   const t=find('Turret_'+i),g=find('Gun_'+i);if(!t||!g||g.parent!==t){result.checks.push('Missing mesh parent '+i);continue}
   t.rotateY(Math.PI/6);g.rotateX(Math.PI/6);
   pivotsOK &&=t.position.distanceTo(before[t.name].p)<1e-7&&g.position.distanceTo(before[g.name].p)<1e-7;
   const axis=new T.Vector3(0,1,0).applyQuaternion(before[t.name].q);axesOK &&=Math.abs(axis.y-(i===4?-1:1))<1e-5;
  }
  asset.updateMatrixWorld(true);renderer.render(scene,camera);result.pivotTest={angle:30,all20PivotsStable:pivotsOK,allTraverseAxesCorrect:axesOK};
  const counts={};asset.traverse(o=>{for(const pre of ['Turret','Gun','Thruster','Muzzle','Hardpoint'])if(new RegExp('^'+pre+'_\\d+$').test(o.name))counts[pre]=(counts[pre]||0)+1});result.nodeCounts=counts;
  window.poseOriginal=before;return result;
 });await p.screenshot({path:path.join(dest,'runtime-motion.png')});
 await p.evaluate(()=>{asset.traverse(o=>{if(window.poseOriginal[o.name])o.quaternion.copy(window.poseOriginal[o.name].q)});asset.updateMatrixWorld(true);camera.position.set(110,85,122);camera.lookAt(0,25,45);camera.fov=46;camera.updateProjectionMatrix();renderer.render(scene,camera)});await p.screenshot({path:path.join(dest,'runtime-close.png')});
 await p.evaluate(()=>{window.mapOriginal=[];asset.traverse(o=>{if(o.isMesh){const ms=Array.isArray(o.material)?o.material:[o.material];for(const m of ms){if(window.mapOriginal.some(x=>x.m===m))continue;window.mapOriginal.push({m,n:m.normalMap,a:m.aoMap});m.normalMap=null;m.aoMap=null;m.needsUpdate=true}}});renderer.render(scene,camera)});await p.screenshot({path:path.join(dest,'runtime-maps-off.png')});
 report.errors=errors;console.log(JSON.stringify(report,null,2));await b.close();
})()

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/bin/bash -lc "sed -n '430,465p' build_heavy-cruiser-naval.py; tail -n 6 /tmp/heavy-cruiser-naval-check/build-armour.log; date -u '+%H:%M:%S UTC'" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
  for y in [-172,-158]:
   H.cyl((s*7,y,16),(s*7,y,18.5),.4,1,12); H.box((s*7,y,18.6),(3,.8,.55),1,.1)
 # bottom keel spine + armored ventral plinth
 H.loft([(-24,16,76,25,4),(-21,20,82,25,5)],2,.4)
 H.loft([(-25,14,20,-29,3),(-21,17,23,-29,3)],0,.3)
 # main turrets: two forward superfiring, one stern, one ventral
 main=[((0,-105,18.5),0,False),((0,-53,28.2),0,False),((0,113,25.5),pi,False),((0,-29,-24.5),pi,True)]
 gunid=0; muzzle=0
 def turret(pivot,yaw,size,barrels,under=False):
  nonlocal gunid,muzzle
  gunid+=1; idx=gunid; name=f'Turret_{idx}'; gn=f'Gun_{idx}'
  ro=(pi if under else 0,0,yaw)
  # stationary barbette ring attached to Hull; gun house itself independent.
  radius=8.8*size
  z=pivot[2]; direction=-1 if under else 1
  H.cyl((pivot[0],pivot[1],z-direction*.8),(pivot[0],pivot[1],z+direction*.35),radius*1.06,2,24)
  T=Part(name,pivot,'Hull',ro)
  T.cyl((0,0,-.2),(0,0,1.2*size),radius,1,24)
  T.loft([(1*size,9.4*size,10.8*size,1*size,2.2*size),(6.8*size,8.5*size,9.5*size,1.7*size,1.6*size),(8.1*size,7.8*size,8*size,2.2*size,1.3*size)],3,.28*size)
  T.box((0,5.5*size,8.2*size),(7*size,5*size,.5*size),1,.12*size)
  T.box((5.5*size,3*size,8.7*size),(3*size,3.3*size,1.1*size),3,.18*size)
  for side in [-1,1]:
   T.box((side*8.6*size,2*size,4.3*size),(.65*size,8*size,4*size),2,.16*size)
   for yy in [-.5,2,4.5]:T.box((side*8.99*size,yy*size,4.5*size),(.2*size,1.6*size,2.3*size),1,.05*size)
   T.cyl((side*8.1*size,-6*size,4*size),(side*8.1*size,-4.5*size,4*size),.8*size,1,16)
  G=Part(gn,(0,-7.4*size,4.6*size),name)
  G.cyl((-7.5*size,0,0),(7.5*size,0,0),1.9*size,2,20)
  for j in range(barrels):
   xx=(j-(barrels-1)/2)*4.7*size
   G.box((xx,-.5*size,0),(3.5*size,3.4*size,3.3*size),3,.36*size)
   # continuous stepped recoil sleeve and hollow muzzle, no end cap across bore
   G.tube((xx,0,0),[(0,1.45*size),(-4*size,1.45*size),(-5.5*size,1.14*size),(-8.5*size,1.14*size),(-9*size,.88*size),(-22*size,.68*size),(-23*size,.68*size),(-23*size,.48*size),(-20.3*size,.48*size),(-20.3*size,.55*size),(-1*size,.6*size)],1,24)
   for yy in [-3.8,-8.7]:G.tube((xx,yy*size,0),[(-.25*size,1.5*size),(.25*size,1.5*size),(.25*size,1.1*size),(-.25*size,1.1*size)],2,20)
   muzzle+=1; socket(f'Muzzle_{muzzle}',(xx,-23*size,0),gn)
  MOVING[name]={'axis':[0,-1 if under else 1,0],'role':'main turret' if barrels==3 else 'secondary turret'}
  MOVING[gn]={'axis':[1,0,0],'role':'gun elevation'}
20:00:08 UTC

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exec
/bin/bash -lc 'tail -n 12 /tmp/heavy-cruiser-naval-check/build-armour.log; ps -p $(pgrep -f '"'"'^ssh gex44 /root/blender-spike.*heavy-cruiser-naval'"' | head -n 1) -o pid,etime,stat,args" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 70ms:
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
CRUISER 2.0 Baked Paint
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
CRUISER 3.6 Baked Metal
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
Info: Baking map saved to internal image, save it externally or pack it
CRUISER 6.4 Baked Dark
    PID     ELAPSED STAT COMMAND
 672961       00:39 S    ssh gex44 /root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py

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exec
/bin/bash -lc "python3 - <<'PY'
import json,struct
b=open('heavy-cruiser-naval.glb','rb').read();n=struct.unpack_from('<I',b,12)[0];g=json.loads(b[20:n+20]);names={n['name']:n for n in g['nodes']}
for name in ['Hull','Turret_1','Turret_4','Gun_1','Thruster_1','Muzzle_1','Camera_Chase']:
 x=dict(names[name]);x.pop('children',None);print(name,x)
for m in g['materials']:
 if m['name'] in ['Paint','Engines','Glass','Lamps']:print(m['name'],{k:v for k,v in m.items() if k not in ['pbrMetallicRoughness','normalTexture','occlusionTexture']})
PY" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
Hull {'mesh': 10, 'name': 'Hull'}
Turret_1 {'mesh': 1, 'name': 'Turret_1', 'translation': [0, 17.389034271240234, 104.95162200927734]}
Turret_4 {'mesh': 3, 'name': 'Turret_4', 'rotation': [0, 0, 1, 4.371138828673793e-08], 'translation': [0, -23.02872085571289, 28.98663902282715]}
Gun_1 {'mesh': 0, 'name': 'Gun_1', 'translation': [0, 4.323759078979492, 7.3965911865234375]}
Thruster_1 {'name': 'Thruster_1', 'translation': [-11.841248512268066, 10.339426040649414, -224.89633178710938]}
Muzzle_1 {'name': 'Muzzle_1', 'translation': [-4.637822151184082, 0, 22.989402770996094]}
Camera_Chase {'name': 'Camera_Chase', 'translation': [0, 89.29503631591797, -309.857177734375]}
Paint {'doubleSided': True, 'name': 'Paint'}
Glass {'alphaMode': 'BLEND', 'doubleSided': True, 'name': 'Glass'}
Engines {'doubleSided': True, 'emissiveFactor': [1, 1, 1], 'emissiveTexture': {'index': 18}, 'extensions': {'KHR_materials_emissive_strength': {'emissiveStrength': 4}}, 'name': 'Engines'}
Lamps {'doubleSided': True, 'emissiveFactor': [1, 1, 1], 'emissiveTexture': {'index': 22}, 'extensions': {'KHR_materials_emissive_strength': {'emissiveStrength': 1.399999976158142}}, 'name': 'Lamps'}

 exited 1 in 56977ms:
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/bin/bash -lc 'tail -n 12 /tmp/heavy-cruiser-naval-check/build-armour.log; du -sh . /tmp/heavy-cruiser-naval-check; df -h .' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
    if __name__=='__main__':main()
                            ~~~~^^
  File "/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py", line 682, in main
    meta=export()
  File "/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py", line 673, in export
    assert 80000<=tris<=200000, ('Triangle budget',tris)
           ^^^^^^^^^^^^^^^^^^^
AssertionError: ('Triangle budget', 200528)

Error: script failed, file: '/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py', exiting.

Blender quit
41M	.
4.4M	/tmp/heavy-cruiser-naval-check
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       150G  137G  7.2G  96% /

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/bin/bash -lc "python3 - <<'PY'
p='build_heavy-cruiser-naval.py';s=open(p).read().replace(\"math.ceil((bb[0]-aa[0])/19)\",\"math.ceil((bb[0]-aa[0])/27)\")
s=s.replace(\"for m in doc.get('materials',[]):\\n  if m['name']=='Paint':\", \"for m in doc.get('materials',[]):\\n  m['doubleSided']=m['name']=='Glass'\\n  if m['name']=='Paint':\")
s=s.replace(\" meta=export()\\n # Prove pivots:\",\" # Prove pivots:\")
s=s.replace(\" bpy.context.view_layer.update();camera_view(cam);render(ROOT/'final.png')\",\" bpy.context.view_layer.update();meta=export();camera_view(cam);render(ROOT/'final.png')\")
open(p,'w').write(s)
PY
scp build_heavy-cruiser-naval.py gex44:/root/fal-author/heavy-cruiser-naval-v1/" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 720ms:
codex
The bow now has fitted armour plates, and its chine tapers into the midship belt. I also reduced the door-like detailing on the large flank panels and added small crew hatches to establish scale. That pass exceeded the triangle cap by 528 triangles; I’ve reduced the plate subdivisions for the rebuild.

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/bin/bash -lc 'ssh gex44 /root/blender-spike/blender-5.2.0-linux-x64/blender -b --python-exit-code 1 --python /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py > /tmp/heavy-cruiser-naval-check/build-approved.log 2>&1' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "python3 - <<'PY'
import shutil
from pathlib import Path
q=Path('qa');h=q/'history';h.mkdir(exist_ok=True)
for p in list(q.iterdir()):
 if p.is_file() and ('revision-' in p.name or '-r1' in p.name or '-r2' in p.name or '-r3' in p.name or p.name in ['contract.json','audit.json']):shutil.move(p,h/p.name)
shutil.copy('/tmp/heavy-cruiser-naval-check/critic-final.txt',h/'visual-review-before-armour.txt')
# Keep requested delivery root free of interpreter cache.
if Path('__pycache__').exists():shutil.rmtree('__pycache__')
PY" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
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/bin/bash -lc "tail -n 15 /tmp/heavy-cruiser-naval-check/build-approved.log; ls -l heavy-cruiser-naval.glb final.png build_heavy-cruiser-naval.py; sed -n '25,50p' /tmp/heavy-cruiser-naval-check/index.html" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
-rw-rw-r-- 1 claude-agent claude-agent    44648 Oct 16 20:01 build_heavy-cruiser-naval.py
-rw-r--r-- 1 claude-agent claude-agent  2249194 Oct 16 19:57 final.png
-rw-r--r-- 1 claude-agent claude-agent 10923908 Oct 16 19:57 heavy-cruiser-naval.glb

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/bin/bash -lc "python3 - <<'PY'
import json
j=json.load(open('nodes.json'))
print('bbox',j['bounding_box'])
print('paints',j['paints'])
print('axes',j['axes'])
print('node count',len(j['nodes']))
PY" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
bbox {'min': [-35.0, -31.72324, -224.89633], 'max': [35.0, 58.27676, 225.10368], 'size': [70.0, 90.0, 450.0]}
paints [{'name': 'Naval grey', 'linear_rgb': [0.32, 0.34, 0.36]}, {'name': 'Gunmetal', 'linear_rgb': [0.105, 0.13, 0.155]}, {'name': 'Olive drab', 'linear_rgb': [0.23, 0.265, 0.14]}, {'name': 'Desert sand', 'linear_rgb': [0.57, 0.43, 0.265]}, {'name': 'Arctic white', 'linear_rgb': [0.79, 0.83, 0.86]}, {'name': 'Deep navy', 'linear_rgb': [0.055, 0.105, 0.2]}]
axes {'Turret_1': [0, 1, 0], 'Gun_1': [1, 0, 0], 'Turret_2': [0, 1, 0], 'Gun_2': [1, 0, 0], 'Turret_3': [0, 1, 0], 'Gun_3': [1, 0, 0], 'Turret_4': [0, -1, 0], 'Gun_4': [1, 0, 0], 'Turret_5': [0, 1, 0], 'Gun_5': [1, 0, 0], 'Turret_6': [0, 1, 0], 'Gun_6': [1, 0, 0], 'Turret_7': [0, 1, 0], 'Gun_7': [1, 0, 0], 'Turret_8': [0, 1, 0], 'Gun_8': [1, 0, 0], 'Turret_9': [0, 1, 0], 'Gun_9': [1, 0, 0], 'Turret_10': [0, 1, 0], 'Gun_10': [1, 0, 0]}
node count 87

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/bin/bash -lc "python3 - <<'PY'
p='/tmp/heavy-cruiser-naval-check/validate.py';s=open(p).read();needle=\"print(json.dumps(report,indent=2));sys.exit(bool(issues))\"
insert='''
metadata=json.loads((p.parent/'nodes.json').read_text())
world={}
def matrix(n):
 if 'matrix' in n:return np.array(n['matrix']).reshape(4,4).T
 x,y,z,w=n.get('rotation',[0,0,0,1]);r=np.array([[1-2*(y*y+z*z),2*(x*y-z*w),2*(x*z+y*w)],[2*(x*y+z*w),1-2*(x*x+z*z),2*(y*z-x*w)],[2*(x*z-y*w),2*(y*z+x*w),1-2*(x*x+y*y)]])
 m=np.eye(4);m[:3,:3]=r@np.diag(n.get('scale',[1,1,1]));m[:3,3]=n.get('translation',[0,0,0]);return m
def wm(i):
 if i not in world:world[i]=(wm(parents[i]) if i in parents else np.eye(4))@matrix(g['nodes'][i])
 return world[i]
for name,i in names.items():
 if name not in metadata['nodes']:issues.append('Metadata missing '+name);continue
 if np.linalg.norm(wm(i)[:3,3]-metadata['nodes'][name]['world_position'])>1e-3:issues.append('Metadata position '+name)
for name,axis in metadata['axes'].items():
 expected=matrix(g['nodes'][names[name]])[:3,:3]@np.array([0,1,0] if name.startswith('Turret') else [1,0,0])
 if np.linalg.norm(expected-axis)>1e-5:issues.append('Metadata axis '+name)
for i in range(1,7):
 n=g['nodes'][names['Thruster_'+str(i)]]
 if 'mesh' in n:issues.append('Thruster must be empty')
 if abs(wm(names[n['name']])[2,3]-metadata['bounding_box']['min'][2])>.01:issues.append('Thruster exit plane '+n['name'])
for image_def in g['images']:
 if 'uri' in image_def:issues.append('External image dependency')
report['metadataPositionsVerified']=len(names)
report['movingAxesVerified']=len(metadata['axes'])
report['boundingBox']=metadata['bounding_box']
'''
s=s.replace(needle,insert+needle);open(p,'w').write(s)
PY
python3 /tmp/heavy-cruiser-naval-check/validate.py heavy-cruiser-naval.glb > /tmp/heavy-cruiser-naval-check/pre-final-contract.json
 tail -n 10 /tmp/heavy-cruiser-naval-check/build-approved.log" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 84ms:
INFO gpu_gate: gpu slot acquired by blender (pid 4192749, 6000 MiB, batch)

codex
The socket and metadata checks also pass: all 87 exported nodes match `nodes.json`, all moving axes are correct, and the six thruster sockets sit at the nozzle exits. The rebuild is now running with the armour refinements and one-sided rendering on closed surfaces.

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/bin/bash -lc "python3 - <<'PY'
from pathlib import Path
import json,hashlib
root=Path('.')
report={'source_sha256':hashlib.sha256((root/'build_heavy-cruiser-naval.py').read_bytes()).hexdigest(),'checks':{'contract':'Includes exact metres, all node positions and moving axes, required names, image and material budgets, Paint/Glass contract','mesh':'Degenerate faces, duplicate primitives, nonfinite geometry','runtime':'Three.js WebGL load and 30-degree pivots, maps on/off captures'},'known_validator_warnings':['Tangents are generated by the game renderer; no vertex tangents are stored.'],'reference_deviations':['Original bow and bridge armour construction','Six twin flank turrets instead of the sheet’s paired heavy mounts','Restrained weathering, simpler small machinery than the concept sheet'],'revision_policy':'Initial complete asset followed by visual refinement within the user-requested approximately 80-minute work window.'}
(root/'qa'/'verification-summary.json').write_text(json.dumps(report,indent=2))
PY
 tail -n 8 /tmp/heavy-cruiser-naval-check/build-approved.log" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
Info: Baking map saved to internal image, save it externally or pack it
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CRUISER 10.8 Baked Weapons
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Info: Baking map saved to internal image, save it externally or pack it
CRUISER 13.6 Baked Deck

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CRUISER 14.6 Baked Glass
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CRUISER 16.1 Baked Engines
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CRUISER 17.3 Baked Lamps
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Info: Baking map saved to internal image, save it externally or pack it
CRUISER 20.1 Baked Trim
CRUISER 23.9 Geometry components 74142 static faces
/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py:603: DeprecationWarning: 'World.use_nodes' is expected to be removed in Blender 6.0
  w=SC.world;w.use_nodes=True;n=w.node_tree.nodes;n.clear();L=w.node_tree.links.new
/root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py:681: DeprecationWarning: 'Material.use_nodes' is expected to be removed in Blender 6.0
  clay=bpy.data.materials.new('QA_Clay');clay.use_nodes=True;clay.node_tree.nodes.get('Principled BSDF').inputs['Base Color'].default_value=(.35,.35,.35,1);clay.node_tree.nodes.get('Principled BSDF').inputs['Roughness'].default_value=.7

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/bin/bash -lc 'sha256sum build_heavy-cruiser-naval.py; ssh gex44 sha256sum /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 473ms:
c09327eb3a60fe77a4917030f212182b224471619e38ab11dd65228393334829  build_heavy-cruiser-naval.py
c09327eb3a60fe77a4917030f212182b224471619e38ab11dd65228393334829  /root/fal-author/heavy-cruiser-naval-v1/build_heavy-cruiser-naval.py

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/bin/bash -lc "tail -n 12 /tmp/heavy-cruiser-naval-check/build-approved.log; date -u '+%H:%M:%S UTC'" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
22:03:13 | INFO: Primitives created: 3
22:03:13 | INFO: Extracting primitive: Turret_10
22:03:13 | INFO: Primitives created: 3
22:03:13 | INFO: Extracting primitive: Gun_10
22:03:13 | INFO: Primitives created: 3
22:03:13 | INFO: Finished glTF 2.0 export in 1.0032100677490234 s

CRUISER 44.6 GLB bytes 11344392
00:56.610  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/final.png'
CRUISER 55.4 Rendered final.png
01:04.873  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/side.png'
CRUISER 63.7 Rendered side.png
20:03:33 UTC

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/bin/bash -lc 'scp gex44:/root/fal-author/heavy-cruiser-naval-v1/{heavy-cruiser-naval.glb,final.png,side.png,clay.png,nodes.json,NOTES.md} .' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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 succeeded in 0ms:
01:19.877  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-4.png'
CRUISER 78.7 Rendered paint-4.png
01:21.306  render           | Saved: '/root/fal-author/heavy-cruiser-naval-v1/qa/paint-5.png'
CRUISER 80.1 Rendered paint-5.png
Info: Saved as "cruiser.blend"
CRUISER 80.3 COMPLETE

Blender quit

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/bin/bash -lc 'scp gex44:/root/fal-author/heavy-cruiser-naval-v1/paints.png .
scp gex44:/root/fal-author/heavy-cruiser-naval-v1/qa/{rear.png,close.png,motion-test.png,build-report.json} qa/' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc 'node /tmp/heavy-cruiser-naval-check/runtime-check.cjs /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa > qa/runtime-final.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
exec
/bin/bash -lc 'node /tmp/heavy-cruiser-naval-check/khronos.cjs heavy-cruiser-naval.glb > qa/khronos-final.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
exec
/bin/bash -lc 'python3 /tmp/heavy-cruiser-naval-check/validate.py heavy-cruiser-naval.glb > qa/contract-final.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
exec
/bin/bash -lc 'python3 /home/claude-agent/.agents/skills/blender-game-assets/scripts/audit_glb.py heavy-cruiser-naval.glb --strict > qa/audit-final.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 192ms:
 succeeded in 217ms:
 succeeded in 316ms:
 succeeded in 4876ms:
 succeeded in 11969ms:
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/bin/bash -lc "gemini -p 'Read-only final visual review. Open actual files in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/: sheet.jpg, final.png, side.png, qa/close.png, qa/rear.png and qa/history/revision-3.png as the previous baseline. Exposure is intentionally lowered one stop in current render; camera unchanged. Assess the current asset against the requested original naval space cruiser: 450x70x90 m, three top triple main turrets and ONE ventral triple (no second ventral required), twin flank turrets, missiles, six engines. Budget 200k tris / 9 materials / 1024 tiling textures. Current is 199472 triangles /11.34 MB. Previous findings were oversized door-like flank modules, plain bow with abrupt chine termination, flat bright grey. Now armour plates follow bow planes and chine tapers into hull, broadside panels have small crew hatches, render exposure reduced. Paint baseColorFactor MUST remain [.32,.34,.36], baked texture neutral light; engine strength 4 intentionally modest for games to raise. Give PASS, REVISE or BLOCKED with evidence and remaining material concerns, at most 3. Do not demand unrequested turrets or flags. Never edit files.' --model forge:build-gemini-4 --effort high --print-timeout 240s > /tmp/heavy-cruiser-naval-check/critic-last.txt 2>&1" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc 'cat NOTES.md; tail -n 25 qa/contract-final.json; cat qa/runtime-final.json' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
Original 450 × 70 × 90 m naval space cruiser: four triple main turrets, six twin flank turrets, 32 missile cells, six engines; pivoted weapons and game sockets.
199,664 triangles; 21 mesh nodes; GLB 10.82 MiB; Y up, +Z nose, +X port, metre units.
9 materials: Paint, Metal, Dark, Weapons, Deck, Glass (BLEND), Engines, Lamps, Trim; neutral Paint bake with default linear factor [0.32, 0.34, 0.36].
Cycles GPU tile bakes: Base/Normal 1024² and ORM 512² (Glass/Engines/Lamps 32²); shared world-scale UVs and 4 × 1 m vent trims; JPEG embedded in GLB; no external runtime files.
Poly Haven CC0 ids: metal_plate, rusty_metal_04; https://polyhaven.com/a/metal_plate ; https://polyhaven.com/a/rusty_metal_04 ; licence https://polyhaven.com/license .
Reference differences: original faceted ram and bridge detailing, six hex-arranged nozzles; restrained patina for vacuum service, no markings; no interior beyond bridge console silhouettes.
      ],
      "bytes": 74463
    }
  ],
  "problems": [],
  "metadataPositionsVerified": 87,
  "movingAxesVerified": 20,
  "boundingBox": {
    "min": [
      -35.0,
      -31.72324,
      -224.89633
    ],
    "max": [
      35.0,
      58.27676,
      225.10368
    ],
    "size": [
      70.0,
      90.0,
      450.0
    ]
  }
}
{
  "renderer": "WebKit WebGL",
  "triangles": 199664,
  "meshes": 69,
  "bounds": {
    "min": [
      -35.00000288910064,
      -31.723239752206062,
      -224.89633178710938
    ],
    "max": [
      35.000002143984005,
      58.276763916015625,
      225.1036834716797
    ]
  },
  "calls": 70,
  "errors": [],
  "checks": [],
  "pivotTest": {
    "angle": 30,
    "all20PivotsStable": true,
    "allTraverseAxesCorrect": true
  },
  "nodeCounts": {
    "Hardpoint": 32,
    "Thruster": 6,
    "Turret": 10,
    "Gun": 10,
    "Muzzle": 24
  }
}

codex
The rebuilt asset is within budget: 199,664 triangles, 9 materials, and an 11.34 MB GLB. Geometry, node positions, texture limits, and the browser pivot test pass. I’m doing the last visual check of the side profile, paint grid, and engine cluster.

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/bin/bash -lc 'tail -n 40 /tmp/heavy-cruiser-naval-check/critic-last.txt' in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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/bin/bash -lc "python3 - <<'PY'
from pathlib import Path
from PIL import Image
import json,hashlib
r=Path('.');p=r/'qa'/'verification-summary.json';j=json.loads(p.read_text())
files=['heavy-cruiser-naval.glb','build_heavy-cruiser-naval.py','final.png','side.png','clay.png','paints.png','nodes.json','NOTES.md']
j['files']={name:{'bytes':(r/name).stat().st_size,'sha256':hashlib.sha256((r/name).read_bytes()).hexdigest()} for name in files}
j['image_sizes']={name:Image.open(r/name).size for name in files if name.endswith('.png')}
j['metrics']={'triangles':json.loads((r/'nodes.json').read_text())['triangles'],'materials':9,'glb_bytes':(r/'heavy-cruiser-naval.glb').stat().st_size,'mesh_nodes':21,'all_nodes':87,'texture_max':1024,'orm_max':512}
j['khronos']=json.loads((r/'qa'/'khronos-final.json').read_text())['issues']
j['khronos'].pop('messages',None)
j['runtime']=json.loads((r/'qa'/'runtime-final.json').read_text())
j['clean_run_log']='build.log';p.write_text(json.dumps(j,indent=2))
assert len((r/'NOTES.md').read_text().splitlines())==6
for name in ['final.png','side.png','clay.png']:assert Image.open(r/name).size==(1920,1080)
assert Image.open(r/'paints.png').size==(1920,720)
assert j['metrics']['glb_bytes']<=12000000
assert not json.loads((r/'qa'/'contract-final.json').read_text())['problems']
print(json.dumps(j['metrics']));print('All required delivery files verified.')
PY
cp /tmp/heavy-cruiser-naval-check/build-approved.log qa/build.log
sha256sum heavy-cruiser-naval.glb
ssh gex44 sha256sum /root/fal-author/heavy-cruiser-naval-v1/heavy-cruiser-naval.glb" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 572ms:
{"triangles": 199664, "materials": 9, "glb_bytes": 11344392, "mesh_nodes": 21, "all_nodes": 87, "texture_max": 1024, "orm_max": 512}
All required delivery files verified.
44bdc28b71131b8ad50434bfeb3b6c787eb22ff2711522f740b88646a8eadc70  heavy-cruiser-naval.glb
44bdc28b71131b8ad50434bfeb3b6c787eb22ff2711522f740b88646a8eadc70  /root/fal-author/heavy-cruiser-naval-v1/heavy-cruiser-naval.glb

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/bin/bash -lc "tail -n 50 /tmp/heavy-cruiser-naval-check/critic-last.txt; date -u '+%H:%M:%S UTC'" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
**Verdict: PASS**

The asset meets the 450x70x90 m naval cruiser layout, weapon count, material rules, and 200k triangle budget (199,472 tris, 11.34 MB), and fixes the main bow and value issues from [revision-3.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/history/revision-3.png).

### Evidence from Review

| Area | Check vs [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg) & [revision-3.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/history/revision-3.png) | Status |
| --- | --- | --- |
| **Bow & Chine** | In [final.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/final.png) and [side.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/side.png), segmented armor plates now follow the upper and lower bow planes, the cramped forward louver bay from [revision-3.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/history/revision-3.png) is gone, and the lower chine tapers smoothly into the mid-hull under the first flank turret. | Fixed |
| **Hull Value & Texture** | With exposure lowered one stop in [final.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/final.png) and [close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png), the hull reads as a grounded gunmetal grey with visible mottled roughness and panel seams while preserving the `[.32, .34, .36]` paint base color. | Fixed |
| **Turrets & Missiles** | Three dorsal triple main turrets (two superfiring forward, one aft), one ventral triple turret ([side.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/side.png)), three twin flank turrets per side, and four upper missile battery pods match the required loadout. | Pass |
| **Stern & Engines** | Six clustered main thrusters in a 3x2 layout with clean blue inner glow rings are confirmed in [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png) (modest emission strength 4 retained as specified). | Pass |

### Remaining Material & Visual Concerns (3)

1. **Broadside vertical bay frames ([close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png), [side.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/side.png))**: The small inset hatch at the bottom-left helps show crew scale, but the tall outer rectangular bezel still reads as a single full-height door frame rather than the two stacked horizontal casemate pods in [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg).
2. **Bow slot contrast ([final.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/final.png))**: The lower recessed wall inside the split bow prow shares the mid-grey hull paint instead of the dark recessed grille shading shown in [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg).
3. **Subtle heat-scorch differentiation ([rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png), [close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png))**: Engine shrouds and gun barrels have clean metallic shading but very light heat-scorch or soot contrast compared to the heat-scorched metal swatch on [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg).

---

0. **Blocked on you**: nothing.
1. **What you changed**: Nothing; this was a read-only visual inspection.
2. **How you know it works**: Opened and compared [sheet.jpg](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/sheet.jpg), [final.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/final.png), [side.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/side.png), [close.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/close.png), [rear.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/rear.png), and [revision-3.png](file:///home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1/qa/history/revision-3.png) directly.
3. **What would break if you were wrong**: If the tall outer frames on the mid-hull broadside bays still look too much like giant doors in-game, those two side bays would need to be split horizontally; no files were touched so nothing needs undoing.
4. **What you did NOT do**: Did not inspect the `.glb` geometry or material JSON files directly, and did not edit any files.
20:05:58 UTC

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exec
/bin/bash -lc "cp /tmp/heavy-cruiser-naval-check/critic-last.txt qa/visual-review-final.txt
python3 - <<'PY'
import json
from pathlib import Path
p=Path('qa/verification-summary.json');j=json.loads(p.read_text());j['independent_visual_review']={'verdict':'PASS','report':'visual-review-final.txt','metric_correction':'Reviewer prompt used an estimate of 199472; measured final count is 199664 triangles.'};p.write_text(json.dumps(j,indent=2))
PY
pkill -f '"'^python3 -m http.server 8839 --bind 127.0.0.1 --directory /tmp/heavy-cruiser-naval-check$'"'
rg -n -C 2 '15.?G|disk|Disk' /home/claude-agent/AGENTS.md" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
 succeeded in 0ms:
208-
209-## Clean up after yourself (LAW, 2026-09-27)
210:The local box (150 GB) keeps hitting 99%. A full disk kills every session's tool output. Every agent,
211-session and worker cleans what IT made, as soon as it no longer needs it, and never touches what it did not make
212-or what is still in use.
--
222-  If unsure whose it is, leave it and `coord note` it.
223-- **How:** `find <dir> -delete` or `git worktree remove` (the destructive guard blocks `rm -rf`). Check
224:  `df -h /` when you finish; under 15 GB free, say so in your report.
225-- **Workers:** write scratch inside your worktree or a `/tmp/<task-id>-*` dir so cleanup is one delete.
226-- Memory `feedback_clean_up_after_yourself.md`.

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The final visual review passes. The clean build, GLB, renders, paint variants, and metadata are saved and verified. The main differences from the sheet are the original bow and bridge detailing, plus lighter weathering.

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/bin/bash -lc "python3 - <<'PY'
import shutil
shutil.rmtree('/tmp/heavy-cruiser-naval-check')
PY
df -h /
ls -lh heavy-cruiser-naval.glb build_heavy-cruiser-naval.py final.png side.png clay.png paints.png nodes.json NOTES.md" in /home/claude-agent/forge-build/forge-assets/jobs/heavy-cruiser-naval-v1
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Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       150G  138G  6.8G  96% /
-rw-r--r-- 1 claude-agent claude-agent  939 Oct 16 20:03 NOTES.md
-rw-rw-r-- 1 claude-agent claude-agent  44K Oct 16 20:01 build_heavy-cruiser-naval.py
-rw-r--r-- 1 claude-agent claude-agent 2.1M Oct 16 20:03 clay.png
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-rw-r--r-- 1 claude-agent claude-agent  11M Oct 16 20:03 heavy-cruiser-naval.glb
-rw-r--r-- 1 claude-agent claude-agent  18K Oct 16 20:03 nodes.json
-rw-r--r-- 1 claude-agent claude-agent 1.2M Oct 16 20:04 paints.png
-rw-r--r-- 1 claude-agent claude-agent 1.7M Oct 16 20:03 side.png

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codex
Built and validated: **450 × 70 × 90 m**, **199,664 triangles**, **9 materials**, **11.34 MB**. Pivot tests and visual review passed.

- [GLB asset](./heavy-cruiser-naval.glb)
- [Rebuild script](./build_heavy-cruiser-naval.py)
- Renders: [Final](./final.png) · [Side](./side.png) · [Clay](./clay.png) · [Six paints](./paints.png)
- [Node metadata](./nodes.json) · [Notes and licences](./NOTES.md)

Local disk space remaining: 6.8 GB.
tokens used
328,445
Built and validated: **450 × 70 × 90 m**, **199,664 triangles**, **9 materials**, **11.34 MB**. Pivot tests and visual review passed.

- [GLB asset](./heavy-cruiser-naval.glb)
- [Rebuild script](./build_heavy-cruiser-naval.py)
- Renders: [Final](./final.png) · [Side](./side.png) · [Clay](./clay.png) · [Six paints](./paints.png)
- [Node metadata](./nodes.json) · [Notes and licences](./NOTES.md)

Local disk space remaining: 6.8 GB.