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Journals ACM SIGGRAPH Computer Graphics Volume 24 Issue 2

This paper describes a novel implementation of the progressive refinement radiosity algorithm. Algorithm performance is greatly enhanced using the capabilities of a multiprocessor graphics workstation. Hemi-cube item buffers are produced using the graphics hardware while the remaining computations are performed in parallel on the multiple host processors. Speedups of a factor of 40 or more over the equivalent software implementation are observed. Load balancing issues are discussed and a system performance model is developed based on actual results.Additionally, a new user interface scheme is presented where the radiosity calculations and walk-through tasks are separated. At each new iteration, the radiosity algorithm automatically updates colors used by the viewing program via shared memory while simultaneously obtaining hints on where to further refine the solution.

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Real time radiosity through parallel processing and hardware acceleration

Baum, Daniel R.; Winget, James M.
ACM SIGGRAPH Computer Graphics , Volume 24 (2)
Association for Computing Machinery – Mar 1, 1990

More Info
  • Publisher Association for Computing Machinery
  • Copyright The ACM Portal is published by the Association for Computing Machinery. Copyright © 2010 ACM, Inc.
  • Subject Color, shading, shadowing, and texture
  • ISSN 0097-8930
  • D.O.I. 10.1145/91394.91420
  • Publisher site Get PDF  

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