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An Efficient Radiosity Solution for Bump Texture Generation
Hong Chen; En-Hua Wu
Conference NameSIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
Source PublicationACM SIGGRAPH Computer Graphics
Conference DateAugust 6-10, 1990
Conference PlaceDallas, TX, USA

The development of global illumination and texture generation makes it possible to produce the most realistic images. However, it is still difficult or deficient so far to simulate bump texture effects while the interreflectiort of light being modeled by the present ray tracing or radioslty methods. A method of bump texture generation, being incorporated into the process of radiosity solution, is presented in the paper. The method is characterized by introduction of a perturbed radiosity map, established in the context of either progressive radiosity or standard radiosity solution. To calculate the perturbed radlosity, a concept of perturbed formfactors is proposed, and the algorithms for evaluating the perturbed form-factors are also given. As a result, a bilinearinterpolation shading scheme for perturbed surfaces is provided~ and the texturing method is easily added to a newly improved solution of progressive refinement radiosity for non-diffuse environment.

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Document TypeConference paper
Faculty of Science and Technology
AffiliationInstitute of Software, Academia Sinica P. O. Box 8718, Beijing 100080, China
Recommended Citation
GB/T 7714
Hong Chen,En-Hua Wu. An Efficient Radiosity Solution for Bump Texture Generation[C],1990:125-134.
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