relief maps & displace maps -- Featured SDK Effects

http://download.developer.nvidia.com/developer/SDK/Individual_Samples/featured_effects.html

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relief_maps    
"relief_maps" is a sample from our skilled friend Fabio Policarpo. It uses "relief mapping," an alternative to the usual bump or normal mapping. Not only does relief mapping disturb the surface normals, but also creates realistic geometric displacments in the shading -- and even casts shadows from those displacements.    
Download  

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displace_maps    
Another great sample project from Fabio Policarpo. This sample uses textre-encoded displacement vectors to create the perspective illusion of displacement mapping without actually altering geometry  

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