Merged Multiresolution Hierarchies for Shadow Map Compression

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dc.contributor.authorScandolo, Leonardoen_US
dc.contributor.authorBauszat, Pabloen_US
dc.contributor.authorEisemann, Elmaren_US
dc.contributor.editorEitan Grinspun and Bernd Bickel and Yoshinori Dobashien_US
dc.date.accessioned2016-10-11T05:20:40Z
dc.date.available2016-10-11T05:20:40Z
dc.date.issued2016
dc.description.abstractMultiresolution Hierarchies (MH) and Directed Acyclic Graphs (DAG) are two recent approaches for the compression of highresolution shadow information. In this paper, we introduce Merged Multiresolution Hierarchies (MMH), a novel data structure that unifies both concepts. An MMH leverages both hierarchical homogeneity exploited in MHs, as well as topological similarities exploited in DAG representations. We propose an efficient hash-based technique to quickly identify and remove redundant subtree instances in a modified relative MH representation. Our solution remains lossless and significantly improves the compression rate compared to both preceding shadow map compression algorithms, while retaining the full run-time performance of traditional MH representations.en_US
dc.description.number7
dc.description.sectionheadersEfficient Rendering
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume35
dc.identifier.doi10.1111/cgf.13035
dc.identifier.issn1467-8659
dc.identifier.pages383-390
dc.identifier.urihttps://doi.org/10.1111/cgf.13035
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13035
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectI.3.7 [Computer Graphics]
dc.subjectThree Dimensional Graphics and Realism
dc.subjectColor
dc.subjectshading
dc.subjectshadowing
dc.subjectand texture
dc.subject
dc.subjectI.4.2 [Computer Graphics]
dc.subjectCompression (Coding)
dc.subjectExact coding
dc.titleMerged Multiresolution Hierarchies for Shadow Map Compressionen_US
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