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Rendering Trees from Precomputed Z-Buffer Views

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Rendering Techniques ’95 (EGSR 1995)

Part of the book series: Eurographics ((EUROGRAPH))

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Abstract

Parallel projection z-buffer images are precomputed for a number of preset viewing directions on the unit sphere. Using the depth information, we can reconstruct a 3-D point from each image pixel. Then parallel or perspective views can be found from any other viewpoint by rotating the 3-D points from the nearest three or four precomputed views into the proper position and projecting them onto an output z-buffer. A temporary z-buffer image, constructed in the same way for a viewpoint at the light source, is used for a z-buffer shadow algorithm. The rendering algorithm is applied to broad leaf and needle leaf trees, and tested in animation. Our rendering algorithm is similar to that in Chen and Williams [1], with differences listed below.

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Author information

Authors and Affiliations

  1. University of California, Davis, CA, 95616, USA

    Nelson Max

  2. Hokkaido Industrial Research Institute, Sapporo, Japan

    Keiichi Ohsaki

Authors
  1. Nelson Max
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  2. Keiichi Ohsaki
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Editor information

Editors and Affiliations

  1. Stanford University, Stanford, USA

    Patrick M. Hanrahan

  2. Institut für Computergraphik, Technische Universität Wien, Wien, Österreich

    Werner Purgathofer

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© 1995 Springer-Verlag/Wien

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Max, N., Ohsaki, K. (1995). Rendering Trees from Precomputed Z-Buffer Views. In: Hanrahan, P.M., Purgathofer, W. (eds) Rendering Techniques ’95. EGSR 1995. Eurographics. Springer, Vienna. https://doi.org/10.1007/978-3-7091-9430-0_8

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  • DOI: https://doi.org/10.1007/978-3-7091-9430-0_8

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  • Publisher Name: Springer, Vienna

  • Print ISBN: 978-3-211-82733-8

  • Online ISBN: 978-3-7091-9430-0

  • eBook Packages: Springer Book Archive

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