Iterative Lightmap Updates for Scene Editing

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dc.contributor.authorLu, Guoweien_US
dc.contributor.authorPeters, Christophen_US
dc.contributor.authorKellnhofer, Petren_US
dc.contributor.authorEisemann, Elmaren_US
dc.contributor.editorChristie, Marcen_US
dc.contributor.editorHan, Ping-Hsuanen_US
dc.contributor.editorLin, Shih-Syunen_US
dc.contributor.editorPietroni, Nicoen_US
dc.contributor.editorSchneider, Teseoen_US
dc.contributor.editorTsai, Hsin-Rueyen_US
dc.contributor.editorWang, Yu-Shuenen_US
dc.contributor.editorZhang, Eugeneen_US
dc.date.accessioned2025-10-07T06:04:32Z
dc.date.available2025-10-07T06:04:32Z
dc.date.issued2025
dc.description.abstractLightmaps are popular for precomputed global illumination, but require costly recomputation when the scene changes. We present the theory and an iterative algorithm to update lightmaps efficiently, when objects are inserted or removed. Our method is based on path tracing, but focuses on updates to those paths that are affected by the scene change. Using an importance sampling scheme, our solution substantially accelerates convergence. Our GPU implementation is well-suited for interactive scene editing scenarios.en_US
dc.description.sectionheadersLighting & Rendering
dc.description.seriesinformationPacific Graphics Conference Papers, Posters, and Demos
dc.identifier.doi10.2312/pg.20251293
dc.identifier.isbn978-3-03868-295-0
dc.identifier.pages8 pages
dc.identifier.urihttps://doi.org/10.2312/pg.20251293
dc.identifier.urihttps://diglib.eg.org/handle/10.2312/pg20251293
dc.publisherThe Eurographics Associationen_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCCS Concepts: Computing methodologies → Ray tracing
dc.subjectComputing methodologies → Ray tracing
dc.titleIterative Lightmap Updates for Scene Editingen_US
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