# Medieval atom kit
Started 2026-10-08 01:00 CEST; checkpoint ceiling 04:00 CEST.
Deliver 29 reusable masters (requested exact names), independent articulated leaves, kit.glb, build_kit.py, kit.json, 14-material external PBR shelf, contact sheet and detail/clay/rear/runtime evidence. Reference: sheet.png. Breton builder read-only precedent.
Y-up, +Z exterior, +X facade; opening origin bottom centre at exterior plane. Geometry in metres, GLB no axis conversion. Windows fit clear opening; surrounds are outside it. Wall backs at Z=-0.20/-0.50.
Per-atom ceilings from brief; roof_underlay ceiling 12 triangles. Textures 1024 primary / 512 secondary, <=64 MB PNG shelf, no embedded GLB images. Draw calls <=95 for whole kit, no frame-rate claim on software renderer.
Cameras: overview grid, joinery close-up, roof/dormer, rear, material/clay and articulated runtime. Revision cap 3 with at most 2 critic passes each.