Precomputing Sound Scattering for Structured Surfaces

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dc.contributor.authorMückl, Gregoren_US
dc.contributor.authorDachsbacher, Carstenen_US
dc.contributor.editorMargarita Amor and Markus Hadwigeren_US
dc.date.accessioned2014-12-16T07:31:22Z
dc.date.available2014-12-16T07:31:22Z
dc.date.issued2014en_US
dc.description.abstractRoom acoustic simulations commonly use simple models for sound scattering on surfaces in the scene. However, the continuing increase of available parallel computing power makes it possible to apply more sophisticated models. We present a method to precompute the distribution of the reflected sound off a structured surface described by a height map and normal map using the Kirchhoff approximation. Our precomputation and interpolation scheme, based on representing the reflected pressure with von-Mises-Fisher functions, is able to retain many directional and spectral features of the reflected pressure while keeping the computational and storage requirements low. We discuss our model and demonstrate applications of our precomputed functions in acoustic ray tracing and a novel interactive method suitable for applications such as architectural walk-throughs and video games.en_US
dc.description.seriesinformationEurographics Symposium on Parallel Graphics and Visualizationen_US
dc.identifier.isbn978-3-905674-59-0en_US
dc.identifier.issn1727-348Xen_US
dc.identifier.urihttps://doi.org/10.2312/pgv.20141087en_US
dc.identifier.urihttps://diglib.eg.org/handle/10.2312/pgv.20141087.073-080
dc.publisherThe Eurographics Associationen_US
dc.subjectI.3.7 [Computer Graphics]en_US
dc.subjectThree Dimensional Graphics and Realismen_US
dc.subjectRaytracingen_US
dc.subjectH.5.5 [Information Systems]en_US
dc.subjectSound and Music Computingen_US
dc.subjectSignal analysisen_US
dc.subjectsynthesisen_US
dc.subjectprocessingen_US
dc.titlePrecomputing Sound Scattering for Structured Surfacesen_US
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EGPGV14: Eurographics Symposium on Parallel Graphics and Visualization