High-Quality Screen-Space Ambient Occlusion using Temporal Coherence

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dc.contributor.authorMattausch, Oliveren_US
dc.contributor.authorScherzer, Danielen_US
dc.contributor.authorWimmer, Michaelen_US
dc.date.accessioned2015-02-23T09:47:14Z
dc.date.available2015-02-23T09:47:14Z
dc.date.issued2010en_US
dc.description.abstractAmbient occlusion is a cheap but effective approximation of global illumination. Recently, screen-space ambient occlusion (SSAO) methods, which sample the frame buffer as a discretization of the scene geometry, have become very popular for real-time rendering. We present temporal SSAO (TSSAO), a new algorithm which exploits temporal coherence to produce high-quality ambient occlusion in real time. Compared to conventional SSAO, our method reduces both noise as well as blurring artefacts due to strong spatial filtering, faithfully representing fine-grained geometric structures. Our algorithm caches and reuses previously computed SSAO samples, and adaptively applies more samples and spatial filtering only in regions that do not yet have enough information available from previous frames. The method works well for both static and dynamic scenes.en_US
dc.description.number8en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume29en_US
dc.identifier.doi10.1111/j.1467-8659.2010.01784.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages2492-2503en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2010.01784.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing Ltden_US
dc.titleHigh-Quality Screen-Space Ambient Occlusion using Temporal Coherenceen_US
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