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Lazy decompression of surface light fields for precomputed global illumination

  • Gavin Miller
  • Steven Rubin
  • Dulce Ponceleon
Part of the Eurographics book series (EUROGRAPH)

Abstract

This paper describes a series of algorithms that allow the unconstrained walkthrough of static scenes shaded with the results of precomputed global illumination. The global illumination includes specular as well as diffuse terms, and intermediate results are cached as surface light fields. The compression of such light fields is examined, and a lazy decompression scheme is presented which allows for high-quality compression by making use of block-coding techniques. This scheme takes advantage of spatial coherence within the light field to aid compression, and also makes use of temporal coherence to accelerate decompression. Finally the techniques are extended to a certain type of dynamic scene.

Keywords

Compression Ratio Angular Resolution Light Field Cache Size Dynamic Scene 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Wien 1998

Authors and Affiliations

  • Gavin Miller
    • 1
  • Steven Rubin
    • 1
  • Dulce Ponceleon
    • 2
  1. 1.Interval Research CorpUSA
  2. 2.IBM Almaden Research CenterUSA

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