# Modern atom kit
Started 2026-10-08 01:00 CEST; checkpoint ceiling 04:00 CEST.
Scope: 19 identity-transform Y-up masters, external 12-name material shelf,
GLB + manifest + reproducible builder + contact sheets + browser inspector.
Reference: sheet.png; read-only Breton kit establishes delivery conventions.
Cameras: individually fitted catalog cards; glazing/reveals close-up; roof/drainage;
rear reveal; clay; actual Three.js overview and selected detail.
Budgets: user's per-atom triangle ceilings are hard gates. Shelf <= 32 MiB
PNG download, <= 160 MiB decoded with mips. Geometry <= 1 MiB GLB.
Keep one primitive per used material per rigid assembly; moving door separate.
Three revisions maximum, two independent visual critiques per revision.
No integration into a game is requested; delivery status is review-only.

Final: 19 atoms / 12 materials / 7108 triangles; independent final visual PASS.
All export, material, metric-UV and browser gates recorded in delivery reports.