Interactive Iso-Surface Ray Tracing of Massive Volumetric Data Sets

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dc.contributor.authorFriedrich, Heikoen_US
dc.contributor.authorWald, Ingoen_US
dc.contributor.authorGuenther, J.en_US
dc.contributor.authorMarmitt, G.en_US
dc.contributor.authorSlusallek, Phillipen_US
dc.contributor.editorJean M. Favre and Luis Paulo Santos and Dirk Reinersen_US
dc.date.accessioned2014-01-26T16:36:45Z
dc.date.available2014-01-26T16:36:45Z
dc.date.issued2007en_US
dc.description.abstractThe visualization of iso-surfaces from gridded volume data is an important tool in many scientific applications. Today, it is possible to ray trace high-quality iso-surfaces at interactive frame rates even on commodity PCs. However, current algorithms fail if the data set exceeds a certain size either because they are not designed for outof- core data sets or the loading times are too high because there is too much overhead involved in the out-of-core (OOC) techniques. We propose a kD-tree based OOC data structure that allows to ray trace iso-surfaces of large volumetric data sets of many giga bytes at interactive frame rates on a single PC. A LOD technique is used to bridge loading times of data that is fetched asynchronously in the background. Using this framework we are able to ray trace iso-surfaces between 2 and 4 fps on a single dual-core Opteron PC at 640×480 resolution and an in-core memory footprint that is only a fraction of the entire data size.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/EGPGV07/109-116en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.2 [Graphics Systems]: Stand-alone systems; I.3.6 [Methodology and Techniques]: Graphics data structures and data types; I.3.7 [Three-Dimensional Graphics and Realism]: Ray tracing;en_US
dc.titleInteractive Iso-Surface Ray Tracing of Massive Volumetric Data Setsen_US
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EGPGV07: Eurographics Symposium on Parallel Graphics and Visualization