Efficient rendering of spatial bi-directional reflectance distribution functions

  • Authors:
  • David K. McAllister;Anselmo Lastra;Wolfgang Heidrich

  • Affiliations:
  • University of North Carolina, Chapel Hill, North Carolina;University of North Carolina, Chapel Hill, North Carolina;University of British Columbia, Vancouver, British Columbia, Canada

  • Venue:
  • Proceedings of the ACM SIGGRAPH/EUROGRAPHICS conference on Graphics hardware
  • Year:
  • 2002

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Abstract

We propose texture maps that contain at each texel all the parameters of a Lafortune representation BRDF as a compact, but quite general surface appearance representation. We describe a method for rendering such surfaces rapidly on current graphics hardware and demonstrate the method with real, measured surfaces and hand-painted surfaces.We also propose a method of rendering such spatial bi-directional reflectance distribution functions using prefiltered environment maps. Only one set of maps is required for rendering the different BRDFs stored at each texel over the surface.