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A radiosity approach for the simulation of daylight

  • S. Müller
  • W. Kresse
  • N. Gatenby
  • F. Schöffel
Conference paper
Part of the Eurographics book series (EUROGRAPH)

Abstract

In this paper, an extension to the radiosity method, for the simulation of daylight, is presented. The sky hemisphere around the scene is subdivided into a set of sky patches. By defining a location on the earth, a time of day and the weather conditions (e.g., clear sky, overcast, partly cloudy) a sky model (e.g., CIE or Perez) is applied to compute the radiosity values for each sky patch. In a radiosity preprocess, the sky patches are regarded as shooting patches and are treated first. By storing the form factors within this preprocess, all parameters of the sky model can be modified and updated very quickly. Thus, a designer can see the lighting variation throughout a typical day by calling the costly form factor computation only once.

Keywords

Form Factor Visible Section Nearby Building Band Source Daylight Simulation 
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 1995

Authors and Affiliations

  • S. Müller
    • 1
  • W. Kresse
    • 1
  • N. Gatenby
    • 1
    • 2
  • F. Schöffel
    • 1
  1. 1.Fraunhofer Institute for Computer GraphicsDarmstadtGermany
  2. 2.Computer Graphics UnitUniversity of ManchesterUK

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