Title: Modeling and rendering heterogeneous fog in real-time using B-Spline wavelets
Authors: Giroud, Anthony
Biri, Venceslas
Citation: WSCG 2010: Communication Papers Proceedings: 18th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision in co-operation with EUROGRAPHICS, p. 145-152.
Issue Date: 2010
Publisher: Václav Skala - UNION Agency
Document type: konferenční příspěvek
URI: http://wscg.zcu.cz/WSCG2010/Papers_2010/!_2010_Short-proceedings.pdf
ISBN: 978-80-86943-87-9
Keywords: vykreslování;modelování;mlha;obraz
Keywords in different language: rendering;modelling;fog;image
Abstract: Heterogeneous fogs are often modeled with several layers of different density or using particle systems. However, layers are limited to vertical variations and using particles can involve a long computation time with large outdoor scenes. In this article we present a simple method to render heterogeneous fog in real-time. The extinction function of our fog, related to its density, is first modeled in a B-Spline function basis. Then, a wavelet transform is applied on this function to obtain a decomposition in both space and frequency domains. A grid traversal is used to render the fog in real time using the GPU. Since no precomputation is required concerning the position of the camera or the fog, we can freely navigate or move the fog into the scene.
Rights: © Václav Skala - UNION Agency
Appears in Collections:WSCG 2010: Communication Papers Proceedings

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/11054

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