Polys in the screen

OpenGL OpenGL: Basic Coding
1

OpenGL have any function to know how many polys I render in each frame??

2

Nope, you must count them yourself.

3

If you need it only for evaluation, you may utilize the selection buffer for this purpose. See glRenderMode and glSetSelectionBuffer for more details.

Hope, that helps,
Andreas “SunSailor” Podgurski