Reuse of Paths in Light Source Animation

Authors:
Mateu Sbert;Francesc Castro;John Halton
Affiliations:
Universitat de Girona;Universitat de Girona;University of North Carolina at Chapel Hill
Venue:
CGI '04 Proceedings of the Computer Graphics International
Year:
2004

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Abstract

In this paper we extend the reuse of paths to the shot froma moving light source. In the classical algorithm new pathshave to be cast from each new position of a light source. Weshow that we can reuse all paths for all positions, obtainingin this way a theoretical maximum speed-up equal to theaverage length of the shooting path.