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Parallel volume rendering using binary-swap compositing

机译:使用二进制交换合成的并行体积渲染

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We describe a parallel volume-rendering algorithm, which consists of two parts: parallel ray tracing and parallel compositing. In the most recent implementation on Connection Machine's CM-5 and networked workstations, the parallel volume renderer evenly distributes data to the computing resources available. Without the need to communicate with other processing units, each subvolume is ray traced locally and generates a partial image. The parallel compositing process then merges all resulting partial images in depth order to produce the complete image. The compositing algorithm is particularly effective for massively parallel processing, as it always uses all processing units by repeatedly subdividing the partial images and distributing them to the appropriate processing units. Test results on both the CM-5 and the workstations are promising. They do, however, expose different performance issues for each platform.
机译:我们描述了一种并行的体积渲染算法,该算法包括两部分:并行光线跟踪和并行合成。在Connection Machine的CM-5和联网工作站上的最新实现中,并行卷渲染器将数据均匀地分布到可用的计算资源上。无需与其他处理单元通信,就可以局部跟踪每个子体积并生成局部图像。然后,并行合成过程将所有生成的部分图像按深度合并,以生成完整图像。合成算法对于大规模并行处理特别有效,因为它始终通过重复细分局部图像并将其分配给适当的处理单元来使用所有处理单元。在CM-5和工作站上的测试结果都是有希望的。但是,它们确实暴露了每个平台的不同性能问题。

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