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Heuristical Real-Time Shadows

  • David Meaney
  • Carol O’Sullivan
Conference paper
Part of the Eurographics book series (EUROGRAPH)

Abstract

Computer generated graphical scenes benefit greatly from the inclusion of accurately rendered shadows. Shadows contribute to the realism of a scene, and also provide important information relating to the relative position of objects within a scene. However, shadow generation imposes a significant penalty in terms of the time required to render a scene, especially as the complexity of the scene and the number of polygons needed increases. For this reason, real-time scene generation would benefit from the use of a heuristical approach to the determination of shadow areas. In this paper, we introduce a number of heuristics that may be employed to facilitate real-time animation of objects with shadows at acceptable frame rates. We also present an application designed to investigate the feasibility of rendering shadows at varying levels of detail.

Keywords

Graphical Scene Point Light Source Soft Shadow Accumulation Buffer Shadow Projection 
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 1999

Authors and Affiliations

  • David Meaney
    • 1
  • Carol O’Sullivan
    • 2
  1. 1.CBT systems, Beechhill Office CampusDublin 14Ireland
  2. 2.Computer Science Department, Trinity College DublinImage Synthesis GroupIreland

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