Back Buffer Retrieval

Is there any way to retrieve (and modify) the back buffer (ala doublebuffer) after it has been rendered but before its been displayed?

Yes there is when you use double buffering !

If you use glReadPixels/glDrawPixels after having rendered your scene but before calling wglSwapBuffers, you will be able to do exactly what you describe…



[This message has been edited by Eric (edited 12-18-2000).]