Abstract
Abstract Original bump mapping is only defined for surfaces with a known surface parametrization. In this paper a new method, for the GPU, is presented which does not use such a given parametrization. To compute the perturbed normal, the only inputs used are the surface position, the height value and the original normal. The method decouples bump mapping from the primitive type, thus allowing for a higher degree of proceduralism in generation of both the height value and the surface.
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