Normal Mapping

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Normal Mapping

In 3D computer graphics, normal mapping, or "Dot3 bump mapping", is a technique used for faking the lighting of bumps and dents -

an implementation of Bump mapping. 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 generating a normal map from a high polygon model or height map.

Normal maps are commonly stored as regular RGB images where the RGB components corresponds to the X, Y, and Z coordinates,

respectively, of the surface normal.

Normal mapping (Off)

Normal mapping (On)