Fast compositing for cluster-parallel rendering

The image compositing stages in cluster-parallel rendering for gathering and combining partial rendering results into a final display frame are fundamentally limited by node-to-node image throughput. Therefore, efficient image coding, compression and transmission must be considered to minimize that bottleneck. This paper studies the different performance limiting factors such as image representation, region-of-interest detection and fast im- age compression. Additionally, we show improved compositing performance using lossy YUV subsampling and we propose a novel fast region-of-interest detection algorithm that can improve in particular sort-last parallel rendering.

• Type: Conference
• Year: 2010
• Where: Eurographics Symposium on Parallel Graphics and Visualization
• Authors: Maxim Makhinya, Stefan Eilemann, Renato Pajarola
• Keywords: Computer Graphics, Distributed Graphics, EUROGRAPHICS SYMPOSIUM ON PARALLEL GRAPHICS AND VISUALIZATION 2010, Parallel Rendering