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:
“A normal adolescent is so restless and twitchy and awkward that he can mange to injure his knee—not playing soccer, not playing football—but by falling off his chair in the middle of French class.”
—Judith Viorst (20th century)