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Shadow-Mapping
(1993)
Most radiosity techniques store radiosities in certain sample points, typically the vertices of polyhedral scenes. As diffuse radiosities are view independent they can be used for an interactive 'walk-through'. This paper presents an algorithm for storing radiosities independent of the representation of the object. A distributed rendering system, which uses this shadow-mapping technique is described. The basic thermophysical definitions, needed to derive a sum formula for a form factor calculation of polygons, are explained.