Interactive Stable Ray Tracing

dc.contributor.authorCorso, Alessandro Dalen_US
dc.contributor.authorSalvi, Marcoen_US
dc.contributor.authorKolb, Craigen_US
dc.contributor.authorFrisvad, Jeppe Revallen_US
dc.contributor.authorLefohn, Aaronen_US
dc.contributor.authorLuebke, Daviden_US
dc.contributor.editorVlastimil Havran and Karthik Vaiyanathanen_US
dc.date.accessioned2017-12-06T19:46:57Z
dc.date.available2017-12-06T19:46:57Z
dc.date.issued2017
dc.description.abstractInteractive ray tracing applications running on commodity hard- ware can su er from objectionable temporal artifacts due to a low sample count. We introduce stable ray tracing, a technique that improves temporal stability without the over-blurring and ghosting artifacts typical of temporal post-processing lters. Our technique is based on sample reprojection and explicit hole lling, rather than relying on hole- lling heuristics that can compromise image quality. We make reprojection practical in an interactive ray tracing context through the use of a super-resolution bitmask to estimate screen space sample density. We show signi cantly improved temporal stability as compared with supersampling and an existing reprojec- tion techniques. We also investigate the performance and image quality di erences between our technique and temporal antialias- ing, which typically incurs a signi cant amount of blur. Finally, we demonstrate the bene ts of stable ray tracing by combining it with progressive path tracing of indirect illumination.en_US
dc.description.sectionheadersReal-Time Ray Tracing and Image Reconstruction
dc.description.seriesinformationEurographics/ ACM SIGGRAPH Symposium on High Performance Graphics
dc.identifier.doi10.1145/3105762.3105769
dc.identifier.isbn978-1-4503-5101-0
dc.identifier.issn2079-8679
dc.identifier.urihttps://doi.org/10.1145/3105762.3105769
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1145/3105762-3105769
dc.publisherACMen_US
dc.subjectComputing methodologies
dc.subjectRay tracing
dc.subjectReprojection
dc.subjectdynamic scene
dc.subjectcaching
dc.subjecttemporal stability
dc.subjectGPU
dc.titleInteractive Stable Ray Tracingen_US
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