Multi-Image Based Photon Tracing for Interactive Global Illumination of Dynamic Scenes

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dc.contributor.authorYao, Chunhuien_US
dc.contributor.authorWang, Binen_US
dc.contributor.authorChan, Binen_US
dc.contributor.authorYong, Junhaien_US
dc.contributor.authorPaul, Jean-Claudeen_US
dc.date.accessioned2015-02-23T16:57:39Z
dc.date.available2015-02-23T16:57:39Z
dc.date.issued2010en_US
dc.description.abstractImage space photon mapping has the advantage of simple implementation on GPU without pre-computation of complex acceleration structures. However, existing approaches use only a single image for tracing caustic photons, so they are limited to computing only a part of the global illumination effects for very simple scenes. In this paper we fully extend the image space approach by using multiple environment maps for photon mapping computation to achieve interactive global illumination of dynamic complex scenes. The two key problems due to the introduction of multiple images are 1) selecting the images to ensure adequate scene coverage; and 2) reliably computing ray-geometry intersections with multiple images. We present effective solutions to these problems and show that, with multiple environment maps, the image-space photon mapping approach can achieve interactive global illumination of dynamic complex scenes. The advantages of the method are demonstrated by comparison with other existing interactive global illumination methods.en_US
dc.description.number4en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume29en_US
dc.identifier.doi10.1111/j.1467-8659.2010.01727.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages1315-1324en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2010.01727.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing Ltden_US
dc.titleMulti-Image Based Photon Tracing for Interactive Global Illumination of Dynamic Scenesen_US
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29-Issue 4
EGSR10: 21th Eurographics Symposium on Rendering