Okay so I've got a layered shader with both my dirt and my sand texture in it. I have done the dirt first, and the sand second, so that means I need to add my alpha layer to the topmost (dirt). I have created a clouds-like alpha map and applied it to the dirt texture. The problem is, I have this new layered shader applied to my huge terrain and repeated over and over, many times. The whole purpose of this was to get it so that I can have the alpha map stretch over the WHOLE terrain, giving big spots of dirt and big spots of sand, which would lessen the appearance of a repeating texture over and over. How do I map the alpha to the whole width and length of my terrain, but then separately set the tiling properties of my textures? -Alex