Making Radiance and Irradiance Caching Practical: Adaptive Caching and Neighbor Clamping

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dc.contributor.authorKrivánek, Jaroslaven_US
dc.contributor.authorBouatouch, Kadien_US
dc.contributor.authorPattanaik, Sumantaen_US
dc.contributor.authorZára, Jiríen_US
dc.contributor.editorTomas Akenine-Moeller and Wolfgang Heidrichen_US
dc.date.accessioned2014-01-27T14:55:34Z
dc.date.available2014-01-27T14:55:34Z
dc.date.issued2006en_US
dc.description.abstractRadiance and irradiance caching are efficient global illumination algorithms based on interpolating indirect illumination from a sparse set of cached values. In this paper we propose an adaptive algorithm for guiding spatial density of the cached values in radiance and irradiance caching. The density is adapted to the rate of change of indirect illumination in order to avoid visible interpolation artifacts and produce smooth interpolated illumination. In addition, we discuss some practical problems arising in the implementation of radiance and irradiance caching, and propose techniques for solving those problems. Namely, the neighbor clamping heuristic is proposed as a robust means for detecting small sources of indirect illumination and for dealing with problems caused by ray leaking through small gaps between adjacent polygons.en_US
dc.description.seriesinformationSymposium on Renderingen_US
dc.identifier.isbn3-905673-35-5en_US
dc.identifier.issn1727-3463en_US
dc.identifier.urihttps://doi.org/10.2312/EGWR/EGSR06/127-138en_US
dc.publisherThe Eurographics Associationen_US
dc.subjectCategories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism - Rendering, Global Illuminationen_US
dc.titleMaking Radiance and Irradiance Caching Practical: Adaptive Caching and Neighbor Clampingen_US
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EGSR06: 17th Eurographics Symposium on Rendering