As long as you know how to use a displacement map you are fine. Don't just paint black and white on a canvas and call it a displacement map. Thats not good enough.
http://mcmlinks.ocscottie.com/Tutori...es/texmap3.jpg
Thats a good example of one.
However, if your going to use displacment maps, your going to still have to model. When using a displacement map, you can not have overlapping or inverted slopes. So, use the displacement map as a starting point.
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