This will require checking what mesh object is assigned to the material. If any of the attributes required by the shader, including Position0, Normal0, and Tangent0 are missing from the mesh object, the mesh object should render as the yellow checkerboard. Additional attributes don't trigger the yellow checkerboard.
[x] Add rendering support for yellow checkerboard
[x] Update the shader attribute validation to enforce Position0, Normal0, Tangent0 and ignore extra attributes
[x] Update the RMaterial's HasRequiredAttributes based on the current mesh without negatively impacting performance
[ ] Use a more accurate validation check based on attribute usage and subindex if names are incorrect
This will require checking what mesh object is assigned to the material. If any of the attributes required by the shader, including Position0, Normal0, and Tangent0 are missing from the mesh object, the mesh object should render as the yellow checkerboard. Additional attributes don't trigger the yellow checkerboard.