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06-11-2002, 09:05 AM
Is it possible to only update the alpha of a rgba texture? so that the entire texture doesn't have to be uploaded.

Would be great if i could just have a alphamap resulting in less data to operate on.

What i'm doing is generation animated alpha maps so that the opacity of the textured quad varies over the screen and by time

Bob
06-11-2002, 10:52 AM
I suggest you put the alpha map and RGB map in different textures, and combine them using multi texturing and some fancy texture combine function.