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Accurate Computation of the Radiosity Gradient with Constant and Linear Emitters

Nicolas Holzschuch 1, * François X. Sillion 1
* Corresponding author
1 iMAGIS - Models, Algorithms and Geometry for Computer Generated Image Graphics
GRAVIR - IMAG - Laboratoire d'informatique GRAphique, VIsion et Robotique de Grenoble, Inria Grenoble - Rhône-Alpes
Abstract : Controlling the error incurred in a radiosity calculation is one of the most challenging issues remaining in global illumination research. In this paper, we propose a new method to compute the value and the gradient of the radiosity function at any point of a receiver, with arbitrary precision. The knowledge of the gradient provides fundamental informations on the radiosity function and its behaviour. It can specially be used to control the consistency of the discretisation assumptions.
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Nicolas Holzschuch, François X. Sillion. Accurate Computation of the Radiosity Gradient with Constant and Linear Emitters. Rendering Techniques 1995 (Eurographics Symposium on Rendering), Jun 1995, Dublin, Ireland. pp.186-195. ⟨inria-00379406v2⟩

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