An adaptive subdivision by sliding boundary surfaces for fast ray tracing
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PVGS '99 Proceedings of the 1999 IEEE symposium on Parallel visualization and graphics
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IPPS '96 Proceedings of the 10th International Parallel Processing Symposium
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PaCT '999 Proceedings of the 5th International Conference on Parallel Computing Technologies
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Euro-Par '02 Proceedings of the 8th International Euro-Par Conference on Parallel Processing
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IEEE Transactions on Visualization and Computer Graphics
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EG PGV'04 Proceedings of the 5th Eurographics conference on Parallel Graphics and Visualization
EG PGV'04 Proceedings of the 5th Eurographics conference on Parallel Graphics and Visualization
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We first briefly describe the methodology of programming ray-tracing algorithms on distributed-memory parallel computers, or DMPCs, and review previous efforts to overcome the problems of data distribution and load balancing. Then we present two algorithms designed for DMPCs and implemented on an Intel iPSC/2. We also compare the results of our experiments with them. The first algorithm, a data-oriented parallel implementation based on message passing, demonstrates how complex designing a parallel ray-tracing algorithm can be. The second algorithm shows how we can eliminate some complexity using a control-oriented parallel approach and a shared virtual memory.