Radiosity algorithms using higher order finite element methods

Conference · Sun Aug 01 00:00:00 EDT 1993

OSTI ID:10180237

Troutman, R; Max, N

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.

• Research Organization: Seattle City Light Dept., WA (United States). Office of Conservation
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 10180237
• Report Number(s): UCRL-JC-113527; CONF-930881-4; ON: DE93018098
• 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
• Country of Publication: United States
• Language: English

Related Subjects

99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
COMPUTER GRAPHICS
FINITE ELEMENT METHOD
ALGORITHMS
INTERPOLATION
IMAGE PROCESSING
990200
MATHEMATICS AND COMPUTERS