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Quaternion (my game) keeps roughly 1000 surfaces (of various sizes) in memory.
But you should be watching the video memory very closely... putting your most commonly used surfaces in vidmem gives you a BIG speedup.
Mason McCuskey
Spin Studios
www.spin-studios.com
At runtime, can you move a surface from the system memory to the video memory and vise versa without releasing and recreating the surface?
If your using your surfaces as Direct3DIM textures then in DX7 you can have the texture manager automatically move them between system memory and video memory depending on which ones have been used most recently. Create the surface with the TEXTURE and TEXTUREMANAGE caps. Note that textures have stricter size restrictions than offscreen plain surfaces.
