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Layered materials using a texture as a mask?

polycounter lvl 18
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Minos polycounter lvl 18
Hey guys,

I don't know if this is stupid or not, but I'm trying to make a layered material that blends 3 materials using a simple RGB texture mapped to UV Channel 3.

The idea is to use to the 3rd uv channel to define which material to display ingame:
11dvSaz.jpg

If anyone has a better idea on how to do this more easily, I'm all ears. I thought of using vertex colors instead of the RGB mask, but I'd rather reserve VC for simple vertex AO.

Thanks!
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