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Title: Radiosity algorithms using higher order finite element methods

Many of the current radiosity algorithms create a piecewise constant approximation to the actual radiosity. Through interpolation and extrapolation, a continuous solution is obtained. An accurate solution is found by increasing the number of patches which describe the scene. This has the effect of increasing the computation time as well as the memory requirements. By using techniques found in the finite element method, we can incorporate an interpolation function directly into our form factor computation. We can then use less elements to achieve a more accurate solution. Two algorithms, derived from the finite element method, are described and analyzed.
Authors:
;
Publication Date:
OSTI Identifier:
10180237
Report Number(s):
UCRL-JC--113527; CONF-930881--4
ON: DE93018098
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Conference
Resource Relation:
Conference: Siggraph `93: special interest group on graphics conference,Anaheim, CA (United States),2-6 Aug 1993; Other Information: PBD: 1 Aug 1993
Research Org:
Seattle City Light Dept., WA (United States). Office of Conservation
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; COMPUTER GRAPHICS; FINITE ELEMENT METHOD; ALGORITHMS; INTERPOLATION; IMAGE PROCESSING 990200; MATHEMATICS AND COMPUTERS