Depth Buffer Compression for Stochastic Motion Blur Rasterization

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dc.contributor.authorAndersson, Magnusen_US
dc.contributor.authorHasselgren, Jonen_US
dc.contributor.authorAkenine-Moeller, Tomasen_US
dc.contributor.editorCarsten Dachsbacher and William Mark and Jacopo Pantaleonien_US
dc.date.accessioned2016-02-18T11:01:49Z
dc.date.available2016-02-18T11:01:49Z
dc.date.issued2011en_US
dc.description.abstractPrevious depth buffer compression schemes are tuned for compressing depths values generated when rasterizing static triangles. They provide generous bandwidth usage savings, and are of great importance to graphics processors. However, stochastic rasterizationfor motion blur and depth of field is becoming a reality even for real-time graphics, and previous depth buffer compression algorithms fail to compress such buffers due to the irregularity of the positions and depths of the rendered samples. Therefore, we presenta new algorithm that targets compression of scenes rendered with stochastic motion blur rasterization. If possible, our algorithm fits a single time-dependent predictor function for all the samples in a tile. However, sometimes the depths are localized in more than onelayer, and we therefore apply a clustering algorithm to split the tile of samples into two layers. One time-dependent predictor function is then created per layer. The residuals between the predictor and the actual depths are then stored as delta corrections. For scenes with moderate motion, our algorithm can compress down to 65% compared to 75% for the previously best algorithm for stochastic buffers.en_US
dc.description.sectionheadersRethinking Rasterizationen_US
dc.description.seriesinformationEurographics/ ACM SIGGRAPH Symposium on High Performance Graphicsen_US
dc.identifier.doi10.1145/2018323.2018343en_US
dc.identifier.isbn978-1-4503-0896-0en_US
dc.identifier.issn2079-8687en_US
dc.identifier.pages127-134en_US
dc.identifier.urihttps://doi.org/10.1145/2018323.2018343en_US
dc.publisherACMen_US
dc.subjectI.3.1 [Computer Graphics]en_US
dc.subjectHardwarearchitecture Graphics processorsen_US
dc.subjectI.3.7 [Computer Graphics]en_US
dc.subjectThree Dimensional Graphics and Realism Coloren_US
dc.subjectshadingen_US
dc.subjectshadowingen_US
dc.subjectand textureen_US
dc.subjectstochastic rasterizationen_US
dc.subjectdepth buffer compressionen_US
dc.subjectmotion bluren_US
dc.titleDepth Buffer Compression for Stochastic Motion Blur Rasterizationen_US
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High-Performance Graphics 2011