In
computer graphics,
bump mapping is a technique where at each
pixel, a perturbation to the
surface normal of the object being
rendered is looked up in a
texture map and applied before the illumination calculation is done (see, for instance,
phong shading.) The result is a richer more detailed surface representation that more closely resembled the details inherent in the natural world.
Original Publication:
Blinn, James F. "Simulation of Wrinkled Surfaces", Computer Graphics, Vol. 12 (3), pp. 286-292 SIGGRAPH-ACM (August 1978)
See also: