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 solutionisfoundbyincreasingthenumberofpatcheswhichdescribe 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.

• Type: Conference
• Year: 1993
• Where: SIGGRAPH
• Authors: Roy Troutman, Nelson L. Max
• Keywords: Computer Graphics, Current Radiosity Algorithms, Piecewise Constant Approximation, SIGGRAPH 1993, finite Element Method