validateOrThrow

Validates that a MeshModel instance is structurally consistent before it is consumed.

This method checks that:

• MeshModel.positions is not empty.

• MeshModel.triangleIndices is not empty and its size is a multiple of 3.

• Every value in MeshModel.triangleIndices references a valid vertex in MeshModel.positions.

• Optional per-vertex attributes (MeshModel.normals, MeshModel.tangents, MeshModel.uv0, MeshModel.uv1, and MeshModel.colors) match the vertex count when present.

• Every channel in MeshModel.colors is finite and within the normalized range [0, 1].

Performance note: this method iterates over MeshModel.triangleIndices (and optional attribute lists such as MeshModel.colors) to validate every element. For large meshes, this can be CPU-expensive. Prefer using it for Debug/development-time validation and diagnostics, and avoid calling it in Release builds.

Parameters

Throws