Advanced Light Material Interaction for Direct Volume Rendering

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dc.contributor.authorLindemann, Florianen_US
dc.contributor.authorRopinski, Timoen_US
dc.contributor.editorRuediger Westermann and Gordon Kindlmannen_US
dc.date.accessioned2014-01-29T18:00:39Z
dc.date.available2014-01-29T18:00:39Z
dc.date.issued2010en_US
dc.description.abstractIn this paper we present a heuristic approach for simulating advanced light material interactions in the context of interactive volume rendering. In contrast to previous work, we are able to incorporate complex material functions, which allow to simulate reflectance and scattering. We exploit a common representation of these material properties based on spherical harmonic basis functions, to combine the achieved reflectance and scattering effects with natural lighting conditions, i. e., incorporating colored area light sources. To achieve these goals, we introduce a modified SH projection technique, which is not just tailored at a single material category, but adapts to the present material. Thus, reflecting and scattering materials as assigned trough the transfer function can be captured in a unified approach. We will describe the required extensions to the standard volume rendering integral and present an approximation which allows to realize the material effects in order to achieve interactive frame rates. By exploiting a combination of CPU and GPU processing, we are able to modify material properties and can change the illumination conditions interactively. We will demonstrate the outcome of the proposed approach based on renderings of real-world data sets and report the achieved computation times.en_US
dc.description.seriesinformationIEEE/ EG Symposium on Volume Graphicsen_US
dc.identifier.isbn978-3-905674-23-1en_US
dc.identifier.issn1727-8376en_US
dc.identifier.urihttps://doi.org/10.2312/VG/VG10/101-108en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.3 [Computer Graphics]: Picture/Image Generation-Line and curve generationen_US
dc.titleAdvanced Light Material Interaction for Direct Volume Renderingen_US
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