60 lines
3.1 KiB
Markdown
60 lines
3.1 KiB
Markdown
# M12-06A Status
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status: done
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task: generate the bounded Mesh/PBR/UV/skin/animation GLB fixture group on desktop
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updated: 2026-08-18 America/New_York
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enablingTask: true
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parityStateChange: false
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## Scope
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The pinned Blender 5.2.0 LTS desktop runtime generates five independent GLB 2.0 fixtures: mesh,
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PBR, UV texture, two-joint skin, and object animation. Each file has one bounded triangle primitive,
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uses no required or optional glTF extension, and remains below the 512 KiB per-file budget. The
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fixtures isolate feature ownership so later Web import comparisons cannot hide one unsupported
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domain behind an all-in-one scene.
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The canonical report records runtime identity, file bytes and SHA-256, nodes, topology accessors,
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attributes, materials, textures/images, skins, and animations. The checker binds the M12-05F parent
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manifest and the pinned M12-05A Blender binary identity, regenerates all five files in a fresh
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temporary directory, and requires both the semantic report and every GLB byte to match exactly.
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This enabling task does not claim Web import, `.blend` save/reopen, export loss reporting, or GLB
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round-trip parity.
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## Evidence
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- `node tools/web/check-glb-desktop-fixtures.mjs` passed: 5 fixtures, 8,676 aggregate bytes,
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Mesh/PBR/UV/skin/animation assertions, exact report regeneration, and exact GLB regeneration.
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- Mesh exports indexed triangles with POSITION/NORMAL/COLOR_0; UV exports TEXCOORD_0 plus one
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embedded PNG; skin exports JOINTS_0/WEIGHTS_0 and two inverse-bind matrices; animation exports
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translation and rotation channels sampled over 25 frames.
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- The runtime binary SHA-256 is
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`d4483926610484ef9c2ad9241aae1469f934d955ebe791f1920e263e0ba85b82`, matching M12-05A.
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- `npm --prefix web run typecheck`, `npm --prefix web run test:status-consistency`, and
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`git diff --check` passed. The package hash remains the frozen
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`cfb232baa494ff59f6c8d65514a08c86332ee9354350b2a0392b6f932a7ee42c`.
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## Artifact Hashes
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- parent manifest: `63e1506801ddee2f1eaf64cad68a9d5c918405f642ca237c6a1ec249ff297623`
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- generator: `0247dd2405a68b42d99c2b005546ad2aa99b46416e3fe9489832467f6ea4eb4d`
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- checker: `211ebdb66bf2e2d349455d5303e889a4a1ae3323639a89dd78b3bda574dd820b`
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- desktop report: `dea31cc861622166dc502b333bc177b70b66b54d9c62aaccc6522745dab5ae13`
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- mesh GLB: `e52b9268b6524744fb498691f976000635e544ba3b47e9f8ff22b03bcdf17a94`
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- PBR GLB: `244cc8a992c5a70692b8bbc8333533718b3bac7022110715ce3b23d2e4c0b361`
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- UV GLB: `1e0397d2b69d8261b3252451b50ab4aba6525b94713719f35069a9a9d96fcfa2`
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- skin GLB: `4086ee4c8873aa03090338b676575b7a5335fb7c9384fec6ccb36108e71929f6`
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- animation GLB: `44f6cc47961a146dc97ea337ae31a8b64bb4ab213b716f81ec22129db704f1fb`
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- manifest: `e3554a1e739cbe3f217f6169130532365538b0c0eafbb97afc58d4d56c4287cb`
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## Next Task
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`M12-06B`: import the desktop GLB fixture group on Web and compare topology, attributes, materials,
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nodes, and animations.
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## Rollback
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Remove the desktop fixture generator/checker, five GLB files, report, manifest, and this status
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entry. Restore M12-05F as the queue tail and move the machine queue back to `M12-06A`. No parity
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ledger rollback is required.
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