It can capture all OpenGL drawing commands made by an application and then replay it frame by frame. Valve devs gave a presentation about it including a demo. h

It can capture all OpenGL drawing commands made by an application and then replay it frame by frame. Valve devs gave a presentation about it including a demo. http://www.youtube.com/watch?v=45O7WTc6k2Y http://www.youtube.com/watch?v=45O7WTc6k2Y The part about vogl starts at around 33 minutes and the demo at 40 minutes.