30 search results - page 1 / 6 » Computing Exact Shadow Irradiance Using Splines |
SIGGRAPH
1999
ACM
13 years 9 months ago
1999
ACM
We present a solution to the general problem of characterizing shadows in scenes involving a uniform polygonal area emitter and a polygonal occluder in arbitrary position by manif...
CPHYSICS
2008
13 years 4 months ago
2008
This paper presents a fast algorithm to compute the global clear-sky irradiation, appropriate for extended high-resolution Digital Elevation Models (DEMs). The latest equations pu...
CVPR
2008
IEEE
13 years 5 months ago
2008
IEEE
Human faces are neither exactly Lambertian nor entirely convex and hence most models in literature which make the Lambertian assumption, fall short when dealing with specularities...
PG
2007
IEEE
13 years 11 months ago
2007
IEEE
This paper presents an image-space approximation technique for real-time subsurface scattering. We first create transmitted irradiance samples on shadow maps and then estimate si...
RT
2000
Springer
13 years 8 months ago
2000
Springer
Abstract. Methods for exact computation of irradiance and form factors associated with polygonal objects have ultimately relied on a formula for a differential area to polygon form...