High-Quality Unstructured Volume Rendering on the PC Platform

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dc.contributor.authorGuthe, Stefanen_US
dc.contributor.authorRoettger, Stefanen_US
dc.contributor.authorSchieber, Andreasen_US
dc.contributor.authorStrasser, Wolfgangen_US
dc.contributor.authorErtl, Thomasen_US
dc.contributor.editorThomas Ertl and Wolfgang Heidrich and Michael Doggetten_US
dc.date.accessioned2013-10-28T10:00:22Z
dc.date.available2013-10-28T10:00:22Z
dc.date.issued2002en_US
dc.description.abstractFor the visualization of volume data the application of transfer functions is used widely. In this area the preintegration technique allows high quality visualizations and the application of arbitrary transfer functions. For regular grids, this approach leads to a two-dimensional pre-integration table which easily fits into texture memory. In contrast to this, unstructured meshes require a three-dimensional pre-integration table. As a consequence, the available texture memory limits the resolution of the pre-integration table and the maximum local derivative of the transfer function. Discontinuity artifacts arise if the resolution of the pre-integration table is too low. This paper presents a novel approach for accurate rendering of unstructured grids using the multi-texturing capabilities of commodity PC graphics hardware. Our approach achieves high quality by reconstructing the colors and opacities of the pre-integration table using the high internal precision of the pixel shader. Since we are using standard 2D multi-texturing we are not limited in the size of the pre-integration table. By combining this approach with a hardware-accelerated calculation of the pre-integration table, we achieve both high quality visualizations and interactive classification updates.en_US
dc.description.seriesinformationSIGGRAPH/Eurographics Workshop on Graphics Hardwareen_US
dc.identifier.isbn1-58113-580-1en_US
dc.identifier.issn1727-3471en_US
dc.identifier.urihttps://doi.org/10.2312/EGGH/EGGH02/119-125en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectI.3.1 [Computer Graphics]en_US
dc.subjectPicture and Image GenerationGraphics processorsen_US
dc.subjectI.3.3 [Computer Graphics]en_US
dc.subjectPicture and Image GenerationViewing algorithms.en_US
dc.titleHigh-Quality Unstructured Volume Rendering on the PC Platformen_US
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EGGH02: SIGGRAPH/Eurographics Workshop on Graphics Hardware 2002