OpenGL VAO best practices

Question

Im facing an issue which I believe to be VAO-dependant, but Im not sure..

I am not sure about the correct usage of a VAO, what I used to do during GL initialization

Answer 1

is this a correct practice?

Yes, this is perfectly legal and valid. Is it good? Well...

There has been some informal performance testing on this sort of thing. And it seems, at least on NVIDIA hardware where this was tested, the "proper" use of VAOs (ie: what everyone else advocated) actually is slower in many cases. This is especially true if changing VAOs does not change which buffers are bound.

No similar performance testing has taken place on AMD hardware, to my knowledge. In general, unless something changes with them, this is an acceptable use of VAOs.