orion-ecs / keen-eye / 20872300361 / 1

65%

main: 65%

push

github

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>

9265 of 12581 branches covered (73.64%)

Branch coverage included in aggregate %.

159968 of 182224 relevant lines covered (87.79%)

1.0 hits per line