Interactive VPL-based Global Illumination on the GPU Using Adaptive Fuzzy Clustering

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dc.contributor.authorColom, Arnauen_US
dc.contributor.authorMarques, Ricardoen_US
dc.contributor.authorSantos, Luís Pauloen_US
dc.contributor.editorLiu, Lingjieen_US
dc.contributor.editorAverkiou, Melinosen_US
dc.date.accessioned2024-04-30T08:21:13Z
dc.date.available2024-04-30T08:21:13Z
dc.date.issued2024
dc.description.abstractPhysically-based synthesis of high quality imagery results in a significant workload, which makes interactive rendering a very challenging task. Our approach to achieve such interactive frame rates while accurately simulating global illumination phenomena entails developing a Virtual Point Lights (VPL) ray tracer that runs entirely in the GPU. Our performance guarantees arise from clustering both shading points and VPLs and computing visibility only among clusters' representatives. Previous approaches to the same problem resort to K-means clustering, which requires the user to specify the number of clusters; a rather unintuitive requirement. We propose an innovative massively parallel, GPU-efficient, Quality-Threshold clustering algorithm, which requires the user to specify a quality parameter. The algorithm dynamically adjusts the number of clusters depending both on the specified quality threshold and on camera-geometry conditions during execution.en_US
dc.description.sectionheadersPosters
dc.description.seriesinformationEurographics 2024 - Posters
dc.identifier.doi10.2312/egp.20241043
dc.identifier.isbn978-3-03868-239-4
dc.identifier.issn1017-4656
dc.identifier.pages2 pages
dc.identifier.urihttps://doi.org/10.2312/egp.20241043
dc.identifier.urihttps://diglib.eg.org/handle/10.2312/egp20241043
dc.publisherThe Eurographics Associationen_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCCS Concepts: Keyword → Rendering; Ray Tracing; Global Illumination; Real-time Rendering; Parallel Programming
dc.subjectKeyword → Rendering
dc.subjectRay Tracing
dc.subjectGlobal Illumination
dc.subjectReal
dc.subjecttime Rendering
dc.subjectParallel Programming
dc.titleInteractive VPL-based Global Illumination on the GPU Using Adaptive Fuzzy Clusteringen_US
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