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Now that that is out of the way. i was wondering what process is used to blend the textures ? Say I create terrain and tile it. Would I then create a sperate grime texture and other details as another texture with or without alpha on top of it or is there another way?
Or say I have a rock and it has a tiled texture but I want dirt and crap at the bottom part. What would be the efficient way to get a nice wet mossy bottom and have it blend with the rest of the rrock...?
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