Complicated (T.T).
I thought that using this feature (bmap_blitpart), I would be able to implement different types of brushes in painting of the a blandMAP.
I currently use (terrain_setpixel), for paint a blendMAP of the terrain Mult Texture. I'm trying to implement the types of brushes, and for this reason I tried to use the function (bmap_blitpart).If i solved this problem with transparency, it would be a perfect technique and simple!