Bandwidth and memory efficiency in real-time ray tracing

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dc.contributor.authorLousada, Pedro
dc.contributor.authorCosta, Vasco
dc.contributor.authorPereira, João M.
dc.contributor.editorSkala, Václav
dc.date.accessioned2017-08-31T11:09:50Z
dc.date.available2017-08-31T11:09:50Z
dc.date.issued2017
dc.description.abstract-translatedReal time ray tracing has been given a lot of attention in recent years in the academic and research community. Several novel algorithms have appeared that parallelize different aspects of the ray tracing algorithm through the use of a GPU. Among these, the creation of Bounding Volume Hierarchies (BVHs). We believe that recent approaches have failed to consider the performance impact of memory accesses in GPU and how their cost affects the overall performance of the application. In this work we show that by reducing memory bandwidth and footprint we are able to achieve significant improvements in BVH traversal times. We do this by compressing the BVH and the triangle mesh in a parallel manner after its creation, in each frame, and then decompressing it as needed while traversing the BVH.en
dc.format9 s.cs
dc.format.mimetypeapplication/pdf
dc.identifier.citationJournal of WSCG. 2017, vol. 25, no. 1, p. 49-57.en
dc.identifier.issn1213-6972 (print)
dc.identifier.issn1213-6980 (CD-ROM)
dc.identifier.issn1213-6964 (on-line)
dc.identifier.uriwscg.zcu.cz/WSCG2017/!_2017_Journal_WSCG-No-1.pdf
dc.identifier.urihttp://hdl.handle.net/11025/26279
dc.language.isoenen
dc.publisherVáclav Skala - UNION Agencycs
dc.relation.ispartofseriesJournal of WSCGen
dc.rights© Václav Skala - UNION Agencycs
dc.rights.accessopenAccessen
dc.subjectsledování paprskucs
dc.subjecthierarchie ohraničujících objemůcs
dc.subjectparalelizacecs
dc.subjectGPUcs
dc.subjectkvantovánícs
dc.subjectpaměťcs
dc.subject.translatedray tracingen
dc.subject.translatedbounding volume hierarchyen
dc.subject.translatedparallelizationen
dc.subject.translatedGPUen
dc.subject.translatedquantizationen
dc.subject.translatedmemoryen
dc.titleBandwidth and memory efficiency in real-time ray tracingen
dc.typečlánekcs
dc.typearticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen

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Volume 25, Number 1 (2017)