1.4 KiB
W-033 Status
status: done_current_scope task: 导出 MeshIR
Implemented
Mesh summaries export vertex, edge, face and corner counts. Blender 5.2
AttributeStorage DATA blocks are now resolved by exact old-pointer matches
and by SDNA pointer width. The reader exports position floats, normals,
triangulated corner indices, corner UV/color attributes, triangle material
indices, material slot IDs and object-space bounds with
geometryStatus: "available". The Three adapter applies Z-up conversion,
uses exported normals, expands corner attributes into render vertices, and
binds local material groups.
Accepted bounded scope
The exporter now includes tangent and corner split-normal buffers, seam/sharp edge flags, custom attribute metadata, vertex groups and UV-layer selection. The native WBG1 C ABI carries these buffers without JSON construction and the Worker validates/transfers them to Three.js. Mesh Edit operations rebuild topology metadata through Blender Main and reject linked/shape-key topology changes with structured errors.
Evaluated buffers for unsupported modifier/simulation families remain blocked by the N-002 capability matrix; this is an explicit boundary rather than a claim of universal modifier evaluation.
The field and future transferable layout is documented in
docs/web/mesh-buffer-layout.md.
Verification
node tools/web/run-web-engine-smoke.mjs # basic + attribute fixtures