Radiosity for dynamic scenes in flatland with the visibility complex

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dc.contributor.authorORTI, Rachelen_US
dc.contributor.authorRIVIERE, Stephaneen_US
dc.contributor.authorDURAND, Fredoen_US
dc.contributor.authorPUECH, Claudeen_US
dc.date.accessioned2014-10-21T07:43:36Z
dc.date.available2014-10-21T07:43:36Z
dc.date.issued1996en_US
dc.description.abstractThe radiosity method is particularly suitable for global illumination calculations in static environments. Nonetheless, recent applications of image synthesis such as architectural simulation or lighting design require the ability to modify environments. Previous methods have attempted to deal with dynamic environments (environments where the geometry, the material properties, etc., can change)but still suffer some limitations in the case of moving objects. One of the main problems remaining is the efficient and accurate detection of which form factors must really be recomputed, since their calculation is the most time-consuming part of the radiosity method. To correctly understand and solve this problem, we start with a method in 2D for polygonal scenes using the visibility complex. It is a powerful data structure representing the visibility relationships between objects in the plane. We have developed and implemented an algorithm which uses this structure to efficiently compute the discontinuity mesh and the form factors for static scenes. We also propose an extension to our algorithm to efficiently update only the modified form factors when an object is moving. This approach enhances our understanding and will hopefully lead to efficient solutions in 3D.en_US
dc.description.number3en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume15en_US
dc.identifier.doi10.1111/1467-8659.1530237en_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages237-248en_US
dc.identifier.urihttps://doi.org/10.1111/1467-8659.1530237en_US
dc.publisherBlackwell Science Ltd and the Eurographics Associationen_US
dc.titleRadiosity for dynamic scenes in flatland with the visibility complexen_US
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