orion-ecs / keen-eye / 20872300361

65%

Build Type

push

github

Committed by tyevco

Commit Message

feat(assets): Enhance MeshVertex with PBR and animation attributes

Extend MeshVertex to include all attributes needed for PBR rendering
and skeletal animation, enabling proper glTF model support.

- Add Tangent (Vector4) for normal mapping (xyz=direction, w=bitangent sign)
- Add Color (Vector4) for per-vertex RGBA color
- Add JointIndices struct for bone indices (up to 4 influences)
- Add Weights (Vector4) for bone weights
- Add MeshVertex.CreateBasic() factory for backward compatibility
- Add Submesh struct for primitive-to-material mapping
- Update MeshAsset with Submeshes[] property for multi-material support
- Update MeshLoader to extract TANGENT, COLOR_0, JOINTS_0, WEIGHTS_0
- Implement MikkTSpace-like tangent computation for meshes without tangents
- Add 20 new unit tests for vertex attributes, equality, and edge cases

Closes #881

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

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