Polygon winding

OpenGL OpenGL: Advanced Coding
1

I was wondering if does matter much
to change polygon winding with
GLFRONTFACE …?? Will it slow
down rendering to change winding several times each frame…??

2

First of all stay with the simple rule of OpenGl:
“Do as few state changes as possible”

To your problem:
Depends on how often you change the winding .I think 2-4 times per frame is okay but if you change it some 100 times per frame like in the thread-example from the superbible(perhaps you know it?) you´ll slow down things alot.

Greets,XBTC!