1. 
   Normal mapping
   In 3D computer graphics, normal mapping, or "Dot3 bump mapping", is a technique used for faking the lighting of bumps and dents. It is used to add details without using more polygons. A common use of this technique is to greatly enhance the appearance and details of a low polygon model by generatin...
   Found op http://en.wikipedia.org/wiki/Normal_mapping
   
   
2. 
   Normal-mapping
   == Fair-use Rationale == == Licensing: == ...
   Found op http://en.wikipedia.org/wiki/Normal-mapping
   
   

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