The Stochastic Ray Method for Radiosity

Laszlo Neumann, Werner Purgathofer, Robert F. Tobler, Attila Neumann, Pavol Elias, Martin Feda, Xavier Pueyo
The Stochastic Ray Method for Radiosity
TR-186-2-94-17, November 1994
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Abstract

THIS TECHNICAL REPORT IS OUTDATED AND HAS BEEN SUPERSEDED BY TR-186-2-95-3. This paper presents an efficient radiosity algorithm for highly complex scenes. The new iteration method, which is based on the Stochastic Shooting Method, uses ray tracing to implicitly calculate form factors. The variance in the solution is reduced by using a self-correcting, stochastically converging iteration formula. The new algorithm can be easily extended to simulate various phenomena normally not found in radiosity environments: transparency, specular reflection and point light-sources.

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@techreport{Neumann-1994-SRM,
  title =      "The Stochastic Ray Method for Radiosity",
  author =     "Laszlo Neumann and Werner Purgathofer and Robert F. Tobler
               and Attila Neumann and Pavol Elias and Martin Feda and
               Xavier Pueyo",
  year =       "1994",
  abstract =   "THIS TECHNICAL REPORT IS OUTDATED AND HAS BEEN SUPERSEDED BY
               TR-186-2-95-3. This paper presents an efficient radiosity
               algorithm for highly complex scenes. The new iteration
               method, which is based on the Stochastic Shooting Method,
               uses ray tracing to implicitly calculate form factors. The
               variance in the solution is reduced by using a
               self-correcting, stochastically converging iteration
               formula. The new algorithm can be easily extended to
               simulate various phenomena normally not found in radiosity
               environments: transparency, specular reflection and point   
                            light-sources.",
  address =    "Favoritenstrasse 9-11/186, A-1040 Vienna, Austria",
  institution = "Institute of Computer Graphics and Algorithms, Vienna
               University of Technology",
  note =       "human contact: technical-report@cg.tuwien.ac.at",
  month =      nov,
  number =     "TR-186-2-94-17",
  URL =        "http://www.cg.tuwien.ac.at/research/publications/1994/Neumann-1994-SRM/",
}