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Exploiting data coherence to improve parallel volume rendering

We have implemented a parallel volume renderer that successfully manages work and data distribution by exploiting data coherence-the tendency of neighboring pixels to use the same data during rendering, particularly when rendering volume data. This flexible, powerful renderer uses ray-casting on a F...

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Bibliographic Details
Published in:IEEE parallel & distributed technology 1994, Vol.2 (2), p.8-16
Main Authors: Mackerras, P., Corrie, B.
Format: Article
Language:English
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Summary:We have implemented a parallel volume renderer that successfully manages work and data distribution by exploiting data coherence-the tendency of neighboring pixels to use the same data during rendering, particularly when rendering volume data. This flexible, powerful renderer uses ray-casting on a Fujitsu AP1000 to generate high-quality images of volume data sets with other geometrically defined structures, such as a set of coordinate axes or a world map. This article focuses on our schemes for work and data distribution. Using image-space work distribution to partition a 2D image among processing nodes, and distributed virtual memory to assign 3D volume data, this renderer effectively and efficiently parallelizes volume rendering.< >
ISSN:1063-6552
1558-1861
DOI:10.1109/88.311568