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Laboratoire d'InfoRmatique en Image et Systèmes d'information
UMR 5205 CNRS / INSA Lyon / Université Claude Bernard Lyon 1 / Université Lumière Lyon 2 / École Centrale de Lyon
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International conference with reviewing committee

Bidirectional Instant Radiosity [PDF]
Benjamin Segovia [LIRIS] , Jean-Claude Iehl [LIRIS] , Bernard Péroche [LIRIS]
6/2006
Dans Proceedings of the 17th Eurographics Workshop on Rendering , Nicosia, Cyprus.

HAL : hal-01592729

Abstract

This paper presents a new sampling strategy to achieve interactive global illumination on one commodity computer. The goal is to propose an efficient numerical stochastic scheme which can be well adapted to a fast rendering algorithm. As we want to provide an efficient sampling strategy to handle difficult settings without sacrificing performance in common cases, we developed an extension of Instant Radiosity in the same way bidirectional path tracing is an extension of path or light tracing. Our idea is to build several estimators and to efficiently combine them to find a set of virtual point light sources which are relevant for the areas of the scene seen by the camera. The resulting algorithm is faster than classical solutions to global illumination. Using today graphics hardware, an interactive frame rate and the convergence of the scheme can be easily obtained in scenes with many light sources, glossy materials or difficult visibility problems.

BibTex

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@InProceedings{Liris-2439,
  title         = {{Bidirectional Instant Radiosity}},
  author        = {Benjamin {Segovia} and Jean-Claude {Iehl} and Bernard 
    {Péroche}},
  year          = {2006},
  month         = jun,
  booktitle     = {Proceedings of the 17th Eurographics Workshop on 
    Rendering
},
   language      = {en},
  url           = {http://liris.cnrs.fr/publis/?id=2439}
}