Rotate a subquad of a quad ?


My question is about the capability of OpenGl to rotate a sub part (a sub quad for example) of a given polygon ?

I want to “cut” a quad into several sub quad, and rotate each of these sub independantly.

It is possible ? Or is it simpler to create these “smaller” quad directly ?


If you can draw each part separately then you can control the transformation of it. It therefore become easier if you supplied the smaller quads as you’ll find it easier to get a handle on these rather than having to extract them from the main model each time.