Scalable Sort-First Parallel Direct Volume Rendering with Dynamic Load Balancing

dc.contributor.authorMoloney, Brendanen_US
dc.contributor.authorWeiskopf, Danielen_US
dc.contributor.authorMoeller, Torstenen_US
dc.contributor.authorStrengert, Magnusen_US
dc.contributor.editorJean M. Favre and Luis Paulo Santos and Dirk Reinersen_US
dc.date.accessioned2014-01-26T16:36:41Z
dc.date.available2014-01-26T16:36:41Z
dc.date.issued2007en_US
dc.description.abstractWe describe a sort-first algorithm for parallel direct volume rendering on GPUs, with the intent of high scalability in regards to both performance and data set size. We explore three novel techniques for estimating the computation time for rendering each pixel, so that we can guarantee a good load balancing regardless of the level of frame-to frame coherence. A bricking technique is used to subdivide the object space, thus allowing each rendering node to load only the bricks of data that are needed to render their respective portions of the image space. This enables us to render data sets larger than an individual GPU's texture memory. We cull bricks that do not contribute to the final image in order to reduce the data that is loaded and provide a coarse method of empty space leaping. We introduce a novel method of eliminating the overhead of generating vertices for the proxy geometry of each brick, by creating a single template of vertices that are used to render all bricks of the same size. Finally, detailed performance measurements document the various aspects of our algorithm.en_US
dc.description.seriesinformationEurographics Symposium on Parallel Graphics and Visualizationen_US
dc.identifier.isbn978-3-905673-50-0en_US
dc.identifier.issn1727-348Xen_US
dc.identifier.urihttps://doi.org/10.2312/EGPGV/EGPGV07/045-052en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.2 [Computer Graphics]: Distributed/network graphics I.3.1 [Computer Graphics]: Parallel processingen_US
dc.titleScalable Sort-First Parallel Direct Volume Rendering with Dynamic Load Balancingen_US
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