My program is rendered in a PBuffer and I wanted to know if there is another way better than glReadPixels() to access to the rendered Surface because I need to use it 45 times per second and know framerate falls to 17FPS ?
I don't really need to copy the rendered Surface but just to read it...
Does glGetPointerv works? How could I use it? I tried to use it but I don't know exactly how... I am in the good way?