Interactive, Multiresolution Image-Space Rendering for Dynamic Area Lighting

Simple item page
dc.contributor.authorNichols, Gregen_US
dc.contributor.authorPenmatsa, Rajeeven_US
dc.contributor.authorWyman, Chrisen_US
dc.date.accessioned2015-02-23T16:57:36Z
dc.date.available2015-02-23T16:57:36Z
dc.date.issued2010en_US
dc.description.abstractArea lights add tremendous realism, but rendering them interactively proves challenging. Integrating visibility is costly, even with current shadowing techniques, and existing methods frequently ignore illumination variations at unoccluded points due to changing radiance over the light s surface. We extend recent image-space work that reduces costs by gathering illumination in a multiresolution fashion, rendering varying frequencies at corresponding resolutions. To compute visibility, we eschew shadow maps and instead rely on a coarse screen-space voxelization, which effectively provides a cheap layered depth image for binary visibility queries via ray marching. Our technique requires no precomputation and runs at interactive rates, allowing scenes with large area lights, including dynamic content such as video screens.en_US
dc.description.number4en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume29en_US
dc.identifier.doi10.1111/j.1467-8659.2010.01723.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages1279-1288en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2010.01723.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing Ltden_US
dc.titleInteractive, Multiresolution Image-Space Rendering for Dynamic Area Lightingen_US
Files
Collections
29-Issue 4
EGSR10: 21th Eurographics Symposium on Rendering