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Computation of Higher Order Illumination with a Non‐Deterministic Approach
Author(s) -
Bouatouch Kadi,
Pattanaik S. N.,
Zeghers Eric
Publication year - 1996
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/1467-8659.1530327
Subject(s) - computation , computer science , radiance , wavelet , global illumination , computer graphics , basis function , graphics , function (biology) , ray tracing (physics) , mathematics , tracing , algorithm , basis (linear algebra) , order (exchange) , mathematical optimization , theoretical computer science , artificial intelligence , computer graphics (images) , rendering (computer graphics) , mathematical analysis , optics , geometry , physics , finance , evolutionary biology , economics , biology , operating system
In spite of the number of efforts made by the computer graphics researchers, till today the computation of view‐independent global illumination in an environment containing non‐diffusely reflecting objects is a non‐resolved problem. In general, non‐deterministic techniques seem to be capable of solving this problem. In this article we propose one such non‐deterministic method which will permit such calculation by using a combined technique of higher order function approximation and particle tracing. We have used multi‐wavelets as basis functions and have calculated the illumination function approximation coefficients by exploiting the adjointness between the radiance equation and the potential equation.