Real-Time High-Dynamic Range Texture Mapping

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dc.contributor.authorCohen, Jonathanen_US
dc.contributor.authorTchou, Chrisen_US
dc.contributor.authorHawkins, Timen_US
dc.contributor.authorDebevec, Paulen_US
dc.contributor.editorS. J. Gortle and K. Myszkowskien_US
dc.date.accessioned2014-01-27T13:49:16Z
dc.date.available2014-01-27T13:49:16Z
dc.date.issued2001en_US
dc.description.abstractThis paper presents a technique for representing and displaying high dynamic-range texture maps (HDRTMs) using current graphics hardware. Dynamic range in real-world environments often far exceeds the range representable in 8-bit per-channel texture maps. The increased realism afforded by a highdynamic range representation provides improved fidelity and expressiveness for interactive visualization of image-based models. Our technique allows for realtime rendering of scenes with arbitrary dynamic range, limited only by available texture memory. In our technique, high-dynamic range textures are decomposed into sets of 8- bit textures. These 8-bit textures are dynamically reassembled by the graphics hardware s programmable multitexturing system or using multipass techniques and framebuffer image processing. These operations allow the exposure level of the texture to be adjusted continuously and arbitrarily at the time of rendering, correctly accounting for the gamma curve and dynamic range restrictions of the display device. Further, for any given exposure only two 8-bit textures must be resident in texture memory simultaneously. We present implementation details of this technique on various 3D graphics hardware architectures. We demonstrate several applications, including high-dynamic range panoramic viewing with simulated auto-exposure, real-time radiance environment mapping, and simulated Fresnel reflection.en_US
dc.description.seriesinformationEurographics Workshop on Renderingen_US
dc.identifier.isbn3-211-83709-4en_US
dc.identifier.issn1727-3463en_US
dc.identifier.urihttps://doi.org/10.2312/EGWR/EGWR01/313-321en_US
dc.publisherThe Eurographics Associationen_US
dc.titleReal-Time High-Dynamic Range Texture Mappingen_US
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EGWR01: 12th Eurographics Workshop on Rendering