HeelX@ is there anyway, to save the current painting on the alpha channel from the acknex? It could be better to handle the terrain shader I guess.
You can of course use the pixel_* functions to read out the alpha channel and put it into another bitmap. But why? Normally, a blendmap stores on seperate channels of a RGBA bitmap the influences of the 4 textures (not including the first texture, which is always tiled over the terrain as base layer).
P.S: I posted
here a function to save TGAs properly.
