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Transparency, Texture, Shadows, and Anti-aliasing

  • Nadia Magnenat Thalmann
  • Daniel Thalmann
Part of the Computer Science Workbench book series (WORKBENCH)

Abstract

Ray tracing is an old technique, based on the numerical simulation of geometric optics. Intuitively, it can be seen that light rays could be traced from a light source along their paths until they reach the observer. However, this is a wasteful approach, because only a few rays coming from a given source actually arrive at the observer. This is why algorithms involving ray tracing carried out the process in the opposite direction. Rays are traced from the observer to the objects in the scene, as shown in Fig. 9.1. The first practical use of the ray-tracing technique in computer animation was the MAGI system [Goldstein and Nagel 1971], which used the algorithm developed by Appel [1968].

Keywords

Particle System Fractional Brownian Motion Computer Animation Motion Blur Virtual Camera 
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 Tokyo 1990

Authors and Affiliations

  • Nadia Magnenat Thalmann
    • 1
  • Daniel Thalmann
    • 2
  1. 1.MIRALab, CUIUniversity of GenevaGenevaSwitzerland
  2. 2.Computer Graphics LabSwiss Federal Institute of TechnologyLausanneSwitzerland

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