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dc.contributor.authorFeng, Wei-Wenen_US
dc.contributor.authorPeng, Liangen_US
dc.contributor.authorJia, Yuntaoen_US
dc.contributor.authorYu, Yizhouen_US
dc.contributor.editorJan Kautz and Sumanta Pattanaiken_US
dc.date.accessioned2014-01-27T15:09:01Z
dc.date.available2014-01-27T15:09:01Z
dc.date.issued2007en_US
dc.identifier.isbn978-3-905673-52-4en_US
dc.identifier.issn1727-3463en_US
dc.identifier.urihttp://dx.doi.org/10.2312/EGWR/EGSR07/023-034en_US
dc.description.abstractComputer games and real-time applications frequently adopt mesh skinning as a deformation technique for virtual characters and articulated objects. Rendering skinned models with global shading effects, such as interreflection and subsurface scattering, using precomputed radiance transfer enables high-quality real-time display of dynamically deformed objects. In this approach, we need to precompute radiance transfer for many sampled poses. Resulting datasets reach hundreds of gigabytes, and are orders of magnitude larger than those for a static object. This paper presents simple but effective large-scale data management techniques so that runtime data communication, decompression and interpolation can be performed efficiently and accurately. Specifically, we have developed a mesh clustering technique based on spectral graph partitioning to facilitate interpolation from nearest neighbors and an incremental clustering method for transfer matrix compression. By exploiting additional data redundancies among different sampled poses, we can achieve higher compression ratios with the same fidelity. Our incremental clustering can make the runtime cost of per-frame data decompression and interpolation satisfy a prescribed upper bound. As a result, we can achieve real-time performance using the massive precomputed data and an efficient runtime algorithm.en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.3 [Computer Graphics]: Three-dimensional Graphics and Realismcolor, shading, shadowing, and textureen_US
dc.titleLarge-Scale Data Management for PRT-Based Real-Time Rendering of Dynamically Skinned Modelsen_US
dc.description.seriesinformationRendering Techniquesen_US


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