Piecewise constant conic sections for accelerated volume density rendering

Hougs, Roland B. and Day, Andy M. (2001) Piecewise constant conic sections for accelerated volume density rendering. In: Eurographics 2001, 2001-09-05 - 2001-09-07.

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In order to accelerate the rendering of volumetric shadows, we propose a new technique which builds sets of conic volumes to approximate the shape of shadows in a participating medium. The novelty of our approach is notably the construction of the cone-sets, which are built with no knowledge of the underlying geometry of the scene. Instead, information collected during the construction of a global photon map is used to derive an estimate of the outline of the shadows in three dimensions. This information is then used in several different ways to speed up the rendering pass. The method shares many of the advantages proposed by photon maps such as viewpoint independence and decoupling from the geometry of the scene.

Item Type: Conference or Workshop Item (Paper)
Faculty \ School: Faculty of Science > School of Computing Sciences
UEA Research Groups: Faculty of Science > Research Groups > Computer Graphics (former - to 2018)
Faculty of Science > Research Groups > Interactive Graphics and Audio
Depositing User: Vishal Gautam
Date Deposited: 18 Aug 2011 12:22
Last Modified: 20 Jun 2023 14:34
URI: https://ueaeprints.uea.ac.uk/id/eprint/23158

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