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.

Read more about Normal Mapping:  History, How It Works, Calculating Tangent Space, Normal Mapping in Video Games

Famous quotes containing the word normal:

    Every normal person, in fact, is only normal on the average. His ego approximates to that of the psychotic in some part or other and to a greater or lesser extent.
    Sigmund Freud (1856–1939)