Visibility Editing For All-Frequency Shadow Design

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dc.contributor.authorObert, Jurajen_US
dc.contributor.authorPellacini, Fabioen_US
dc.contributor.authorPattanaik, Sumantaen_US
dc.date.accessioned2015-02-23T16:58:28Z
dc.date.available2015-02-23T16:58:28Z
dc.date.issued2010en_US
dc.description.abstractWe present an approach for editing shadows in all-frequency lighting environments. To support artistic control, we propose to decouple shadowing from lighting and focus on providing intuitive controls to edit the former. To accomplish this task, we precompute and store scene visibility information separately from lighting and BRDFs and allow artists to edit visibility directly, by providing operations to select shadows and edit their shape. To facilitate a wider range of editing operations, we generalize visibility from binary to three-channel oating point quantities and introduce a novel shadow representation based on computation of visibility ratios between the original render and the edited one. We demonstrate our results for diffuse and glossy surfaces, still scenes and animations.en_US
dc.description.number4en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume29en_US
dc.identifier.doi10.1111/j.1467-8659.2010.01741.xen_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages1441-1449en_US
dc.identifier.urihttps://doi.org/10.1111/j.1467-8659.2010.01741.xen_US
dc.publisherThe Eurographics Association and Blackwell Publishing Ltden_US
dc.titleVisibility Editing For All-Frequency Shadow Designen_US
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29-Issue 4
EGSR10: 21th Eurographics Symposium on Rendering