Does the simplification method support separate vertex attributes?

[sotrh]

Our system expects models to have the different vertex attributes (position, texcoords, normals, etc.), and I was wondering if meshopt_simplify and meshopt_simplifySloppy supported this use case. If I understand correctly these algorithms create a index buffer based on the original data. This seems like it would work with my use case, though I just wanted to make sure that I'm understanding this correctly.