Proceedings of the 17th Eurographics Workshop on
Rendering
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.
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