Abstract
This paper shows how spatial coherence can be exploited to accelerate form-factor calculation for the radiosity method. A certain number of form factors are calculated by a new technique combining hemisphere and ray tracing, while the other form factors are estimated. This estimation method has reduced form-factor calculation by a factor greate than three, for some test scenes.
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References
Bouatouch K, Madani MO, Priol T, Arnaldi B (1987) A new algorithm of space tracing using a CSG model. Proc Eurographics, pp 65–78
Cohen M, Greenberg D (1985) The hemi-cube, a radiosity solution for complex environments. Comput Graph 19(3):31–40
Cohen MF, Greenberg DP, Immel DD, Brock PJ (1986) An efficient radiosity approach for realistic image synthesis. IEEE Comput Graph Appl 6(2):26–35
Goral CM, Torrance KE, Greenberg DP, Battaile B (1984) Modeling the interaction of light between diffuse surfaces. Comput Graph 18(3):213–222
Languénou E, Bouatouch K, Tellier P (1991) Une nouvelle approche réaliste de simulation d'eclairage dans un environnement diffus. INRIA, Rapport de recherche 1553, Rennes, France
Sillion F, Puech C (1989) A general two-pass method integrating specular and diffuse reflection. Comput Graph 23(3):335–344
Spencer S (1992) The hemisphere radiosity method: a tale of two algorithms. In: Bouatouch K, Bouville C (eds) Photorealism in computer graphics. Eurographic Seminars) Springer, Berlin Heidelberg New York, pp 127–135
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Tellier, P., Maisel, E., Bouatouch, K. et al. Exploiting spatial coherence to accelerate radiosity. The Visual Computer 10, 46–53 (1993). https://doi.org/10.1007/BF01905530
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DOI: https://doi.org/10.1007/BF01905530