CPU Ray Tracing of Tree-Based Adaptive Mesh Refinement Data

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dc.contributor.authorWang, Fengen_US
dc.contributor.authorMarshak, Nathanen_US
dc.contributor.authorUsher, Willen_US
dc.contributor.authorBurstedde, Carstenen_US
dc.contributor.authorKnoll, Aaronen_US
dc.contributor.authorHeister, Timoen_US
dc.contributor.authorJohnson, Chris R.en_US
dc.contributor.editorViola, Ivan and Gleicher, Michael and Landesberger von Antburg, Tatianaen_US
dc.date.accessioned2020-05-24T12:59:53Z
dc.date.available2020-05-24T12:59:53Z
dc.date.issued2020
dc.description.abstractAdaptive mesh refinement (AMR) techniques allow for representing a simulation's computation domain in an adaptive fashion. Although these techniques have found widespread adoption in high-performance computing simulations, visualizing their data output interactively and without cracks or artifacts remains challenging. In this paper, we present an efficient solution for direct volume rendering and hybrid implicit isosurface ray tracing of tree-based AMR (TB-AMR) data. We propose a novel reconstruction strategy, Generalized Trilinear Interpolation (GTI), to interpolate across AMR level boundaries without cracks or discontinuities in the surface normal. We employ a general sparse octree structure supporting a wide range of AMR data, and use it to accelerate volume rendering, hybrid implicit isosurface rendering and value queries. We demonstrate that our approach achieves artifact-free isosurface and volume rendering and provides higher quality output images compared to existing methods at interactive rendering rates.en_US
dc.description.number3
dc.description.sectionheadersVolumes
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume39
dc.identifier.doi10.1111/cgf.13958
dc.identifier.issn1467-8659
dc.identifier.pages1-12
dc.identifier.urihttps://doi.org/10.1111/cgf.13958
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13958
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/]
dc.titleCPU Ray Tracing of Tree-Based Adaptive Mesh Refinement Dataen_US
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