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UM MÉTODO PARA SIMULAÇÃO DE ILUMINAÇÃO VOLUMÉTRICA EM APLICATIVOS INTERATIVOS

Saulo A. PessoaSílvio de B. MeloJoão Paulo S. do M. LimaVeronica TeichriebJudith Kelner

In computer graphics, many methods have beencreated to increase realism of synthetic images. Suchmethods are inspired mainly in physics phenomena. A wellstudied phenomenon is the interaction that happens betweenlight and objects. However, such interaction is usuallysimplified due to computational limitation. A commonly usedsimplification is not to take into account the interactionbetween light and atmosphere. Such simplification can beunderstood as light traveling in vacuum, so that images lackatmospherics effects. This paper implements a method for thesimulation of an atmospheric effect commonly calledvolumetric lighting. This effect is vital for photometriccoherency of participating media scenes, thus indispensableto render photorealistic scenes. Since it is fast enough, thismethod can be used in Virtual Reality, Augmented Realityand gaming.

http://www.lbd.dcc.ufmg.br/colecoes/wrva/2007/0025.pdf

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