Radiosity in Flatland

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dc.contributor.authorHeckhert, Paul S.en_US
dc.date.accessioned2014-10-21T07:20:07Z
dc.date.available2014-10-21T07:20:07Z
dc.date.issued1992en_US
dc.description.abstractThe radiosity method for the simulation of interreflection of light between diffuse surfaces is such a common image synthesis technique that its derivation is worthy of study. We here examine the radiosity method in a two dimensional, flatland world. It is shown that the radiosity method is a simple finite element method for the solution of the integral equation governing global illumination. These two-dimensional studies help explain the radiosity method in general and suggest a number of improvements to existing algorithms. In particular, radiosity solutions can be improved using a priori discontinuity meshing, placing mesh boundaries on discontinuities such as shadow edges. When discontinuity meshing is used along with piecewise-linear approximations instead of the current piecewise-constant approximations, the accuracy of radiosity simulations can be greatly increased.en_US
dc.description.number3en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume11en_US
dc.identifier.doi10.1111/1467-8659.1130181en_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages181-192en_US
dc.identifier.urihttps://doi.org/10.1111/1467-8659.1130181en_US
dc.publisherBlackwell Science Ltd and the Eurographics Associationen_US
dc.titleRadiosity in Flatlanden_US
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