Title :
Discontinuity meshing for accurate radiosity
Author :
Lischinski, Dani ; Tampieri, Filippo ; Greenberg, Donald P.
Author_Institution :
Cornell Univ., Ithaca, NY, USA
Abstract :
An algorithm for compactly and accurately capturing the illumination of a diffuse polyhedral environment caused by an area light source is presented. The algorithm constructs a discontinuity mesh that explicitly represents discontinuities in the radiance function as boundaries between mesh elements. A piecewise quadratic interpolant is used to approximate the radiance function, preserving the discontinuities associated with the edges in the mesh.<>
Keywords :
computational geometry; ray tracing; rendering (computer graphics); accurate radiosity; area light source; diffuse polyhedral environment; discontinuity mesh; discontinuity meshing; illumination; photorealism; piecewise quadratic interpolant; radiance function; Bidirectional control; Computational modeling; Computer simulation; Geometry; Interpolation; Light sources; Lighting; Ray tracing; Shape; Tail;
Journal_Title :
Computer Graphics and Applications, IEEE
