What Does Environment-Mapped Bump Mapping (EMBM) Mean?
Environment-mapped bump mapping (EMBM) is an advanced bump mapping technique that is applied using a combination of different maps. It requires a texture map, bump map and an environment map. A bump is simulated by changing the lighting in areas of the surface on which the bump is located. The bump map contains a value for texel coordinates found on the texture map. The bump map and environment map are combined and the resulting shifted environment map is applied to the original texture.
Techopedia Explains Environment-Mapped Bump Mapping (EMBM)
Environment-mapped bump mapping is a technique that will allow for a higher level of detail to be added than what is possible with texture-mapped polygons by themselves. EMBM makes environment mapping possible in multiple and even all directions. EMBM has some advantages over regular bump mapping:
