Hardware implementation

  • Authors:
  • Pascal Gautron

  • Affiliations:
  • Thomson Corporate Research, France

  • Venue:
  • ACM SIGGRAPH 2008 classes
  • Year:
  • 2008

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Abstract

In the classical Irradiance Caching algorithm, rays are first traced from the viewpoint towards the scene. For each corresponding intersection point, the irradiance cache is queried to determine whether a new irradiance record has to be created. When a new record is required, the irradiance value is computed using distribution ray tracing. The newly created record is then stored in an octree, called the irradiance cache. For nearby intersection points the record is retrieved by querying the octree.