Metropolis Instant Radiosity

Benjamin Segovia 1 Jean-Claude Iehl 1 Bernard Péroche 1
1 R3AM - Rendu Réaliste pour la Réalité Augmentée Mobile
LIRIS - Laboratoire d'InfoRmatique en Image et Systèmes d'information
Abstract : We present Metropolis Instant Radiosity (MIR), an unbiased algorithm to solve the Light Transport problem. MIR is a hybrid technique which consists in representing the incoming radiance field by a set of Virtual Point Lights (VPLs) and in computing the response of all sensors in the scene (i.e. camera captors) by accumulating their contributions. In contrast to other similar approaches, we propose to sample the VPLs with an innovative Multiple-try Metropolis-Hastings (MTMH) Algorithm: the goal is to build an efficient, aggressive, and unconditionally robust variance reduction method that works well regardless of the scene layout. Finally, we present a fast ray tracing implementation using MIR and show how our complete rendering pipeline can produce high-quality and high-resolution pictures in few seconds.
Type de document :
Article dans une revue
Computer Graphics Forum, Wiley, 2007, 3, 26, pp.425-434
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Soumis le : mardi 4 avril 2017 - 12:20:39
Dernière modification le : jeudi 1 novembre 2018 - 01:19:41

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  • HAL Id : hal-01501494, version 1

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Benjamin Segovia, Jean-Claude Iehl, Bernard Péroche. Metropolis Instant Radiosity. Computer Graphics Forum, Wiley, 2007, 3, 26, pp.425-434. 〈hal-01501494〉

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