A Unified Approach to Prefiltered Environment Maps

  • Jan Kautz
  • Pere-Pau Vázquez
  • Wolfgang Heidrich
  • Hans-Peter Seidel
Part of the Eurographics book series (EUROGRAPH)


Different methods for prefiltered environment maps have been proposed, each of which has different advantages and disadvantages. We present a general notation for prefiltered environment maps, which will be used to classify and compare the existing methods. Based on that knowledge we develop three new algorithms: 1. A fast hierarchical prefiltering method that can be utilized for all previously proposed prefiltered environment maps. 2. A technique for hardware-accelerated prefiltering of environment maps that achieves interactive rates even on low-end workstations. 3. Anisotropic environment maps using the Banks model.


Filter Size Interactive Rate Graphic Hardware Target Pixel Filter Radius 
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Copyright information

© Springer-Verlag Wien 2000

Authors and Affiliations

  • Jan Kautz
    • 1
  • Pere-Pau Vázquez
    • 2
  • Wolfgang Heidrich
    • 1
  • Hans-Peter Seidel
    • 1
  1. 1.Max-Planck-Institut für InformatikSaarbrückenGermany
  2. 2.Institut d’Informàtica iAplicacions — UdGGironaSpain

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