[pygame] [PyGame + PyOpenGL] Setting Target Surface

[Mike Wyatt <mwyatt@xxxxxxxxx>]

I've just started playing around with Pygame w/ PyOpenGL. I'm making 
good progress, but I'm having trouble figuring out how to have PyOpenGL 
calls render to a surface other than the one returned by 
pygame.display.set_mode(...).

By default, everything I draw with the gl***() methods is drawn directly 
onto the back buffer. Calling pygame.display.flip() then flips the new 
image to the screen. What I'd like to do is render multiple scenes to 
seperate pygame.Surface objects, then render all the surfaces together 
onto the back buffer, then flipping the final image to the screen. This 
will be used for fade in/out transitions between game screens.

Any thoughts?