Fast texture-based form factor calculations for radiosity using graphics hardware

  • Authors:
  • Kasper Høy Nielsen;Niels Jørgen Christensen

  • Affiliations:
  • The Technical University of Denmark;The Technical University of Denmark

  • Venue:
  • Journal of Graphics Tools
  • Year:
  • 2002

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Abstract

This paper describes a method that speeds up hemicube rendering by using texture maps to discretize a scene instead of geometric meshing. The method avoids subdivision of input surfaces and takes advantage of hardware texture mapping in order to accelerate form factor calculations. By using the method, we are able to compute finite-element progressive radiosity significantly faster than when using traditional meshing.