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Author Wu, En-Hua ♦ Chen, Hong
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Abstract 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 interreflection of light being modeled by the present ray tracing or radiosity 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 radiosity, a concept of perturbed form-factors is proposed, and the algorithms for evaluating the perturbed form-factors are also given. As a result, a bilinear-interpolation 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.
Description Affiliation: Institute of Software, Academia Sinica, P. O. Box 8718, Beijing 100080, China (Chen, Hong; Wu, En-Hua)
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1988-08-01
Publisher Place New York
Journal ACM SIGGRAPH Computer Graphics (COMG)
Volume Number 24
Issue Number 4
Page Count 10
Starting Page 125
Ending Page 134

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Source: ACM Digital Library