40 search results - page 1 / 8 » Hierarchical Penumbra Casting |
CGF
2005
13 years 4 months ago
2005
We present a novel algorithm for rendering physically-based soft shadows in complex scenes. Instead of casting shadow rays, we place both the points to be shaded and the samples o...
COMPGEOM
2007
ACM
13 years 6 months ago
2007
ACM
Computing shadow boundaries is a difficult problem in the case of non-point light sources. A point is in the umbra if it does not see any part of any light source; it is in full l...
CVPR
2007
IEEE
14 years 6 months ago
2007
IEEE
Several approaches to shadow removal in color images have been introduced in recent years. Yet these methods fail in removing shadows that are cast on curved surfaces, as well as ...
CGVR
2006
13 years 6 months ago
2006
The computation of soft shadows created by area light sources is a well-known problem in computer graphics. Due to the complexity of the problem, soft shadows commonly are generat...
MMM
2007
Springer
13 years 11 months ago
2007
Springer
Abstract. Cast indexing is a very important application for contentbased video browsing and retrieval, since the characters in feature-length films and TV series are always the ma...