I'm working with Page Flipping and Tiled Rendering (all hardware based) but I cannot understand one aspect of page flipping technique.
When you're at frame 1, you're rendering bank1 and working on bank2 for instance. Then you start rendering frame 2 and switch to render bank2 that you was working. Until there, all okay, but when you start working on bank1 again, all changes that you done on bank2 aren't on bank1.
How does Page Flipping work without copying content from bank2 to bank1, since to do a full copy (like Double Buffering) is impossible only in vsync time for my applicaition.