# W-031 Status

status: done
task: 定义 SceneIR v1

## Evidence

- TypeScript contract: `web/protocol/scene-ir.ts`
- C++ serializer: `blender-5.2.0/source/blender/web_engine/web_engine_blend_reader.cpp`
- Golden: `tests/golden/W-031/scene-ir-v1.json`

SceneIR v1 now carries versioned source metadata, Blender Z-up coordinate
semantics, stable type/name IDs, nodes, collections, meshes, materials, images,
cameras, lights, animations, scenes, frame bounds and active object. Browser
validation rejects unsupported schema, coordinate, matrix and tuple shapes.
IDs are generated from Blender ID names with deterministic duplicate suffixes;
the wire format contains no raw WASM pointer.

## Verification

```text
npm run typecheck
node tools/web/run-web-engine-smoke.mjs
```

## Remaining risk

Image and animation arrays are schema-ready but are still empty until their
datablock extraction tasks are implemented.