Form Factor Calculation: a New Expression with Implementations on a Parallel T.Node Computer

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dc.contributor.authorMichelin, Sylvainen_US
dc.contributor.authorMaffeis, Gualtieroen_US
dc.contributor.authorArques, Didieren_US
dc.contributor.authorGrossetie, Jean Claudeen_US
dc.date.accessioned2014-10-21T07:25:42Z
dc.date.available2014-10-21T07:25:42Z
dc.date.issued1993en_US
dc.description.abstractThe radiosity technique uses the heat transfer theory to define a view-independent illumination model. For complex scenes, calculation of this model is very time-intensive, due largely to the determination of a geometric factor, defined with a double area integral, and named form factor. This paper presents a new expression of the form factor, which can be reformulated, in a computationally more efficient manner, as a simple line integral for planar polygonal convex surfaces that are perfectly diffuse.Recently, parallel computers have been used to decrease calculation time. Previous work is focused mainly on distributed implementations of a method, the progressive refinement method, widely used for complex environments. The T.Node is a completely reconfigurable MIMD machine, based on the transputer chip. In this paper, we compare a parallel implementation of the progressive refinement method with a direct method which takes into account the memory capabilities of this kind of machine.en_US
dc.description.number3en_US
dc.description.seriesinformationComputer Graphics Forumen_US
dc.description.volume12en_US
dc.identifier.doi10.1111/1467-8659.1230421en_US
dc.identifier.issn1467-8659en_US
dc.identifier.pages421-432en_US
dc.identifier.urihttp://dx.doi.org/10.1111/1467-8659.1230421en_US
dc.publisherBlackwell Science Ltd and the Eurographics Associationen_US
dc.titleForm Factor Calculation: a New Expression with Implementations on a Parallel T.Node Computeren_US
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