Accession Number : ADA327595

Title :   ONR Young Investigator Award Number N00014-95-1-O728.

Descriptive Note : Summary rept.

Corporate Author : WASHINGTON UNIV SEATTLE DEPT OF COMPUTER SCIENCE AND ENGINEERING

PDF Url : ADA327595

Report Date : 31 OCT 1995

Pagination or Media Count : 3

Abstract : Global illumination of glossy environments using wavelets and importance, with Per Christensen (a UW Ph.D. student), Eric Stollnitz (a UW Ph.D. student in Applied Math), and Tony DeRose (a UW professor). In October, we sent in a revised and final draft of a journal paper to ACM Transactions on Graphics, which shows how importance-driven refinement and a wavelet basis can be combined to provide an efficient solution to the global illumination problem with glossy and diffuse reflections. Importance is used to focus the computation on the interactions having the greatest impact on the visible solution. Wavelets are used to provide an efficient representation of radiance, importance, and the transport operator. We discuss a number of choices that must be made when constructing a finite element algorithm for glossy global illumination. Our algorithm is based on the standard wavelet decomposition of the transport operator and makes use of a four dimensional wavelet representation for spatially and angularly varying radiance distributions.

Descriptors :   *ALGORITHMS, *FINITE ELEMENT ANALYSIS, *ILLUMINATION, *COMPUTER GRAPHICS, EMISSION, GLOBAL, COMPUTATIONS, DISTRIBUTION, INTERACTIONS, EFFICIENCY, REFLECTION, SURFACES, CURVATURE, SOLUTIONS(GENERAL), QUALITY, RADIANCE, ANISOTROPY, VISIBILITY, TRANSPORT, APPLIED MATHEMATICS, OPERATORS(PERSONNEL).

Subject Categories : Computer Programming and Software
      Numerical Mathematics

Distribution Statement : APPROVED FOR PUBLIC RELEASE