23 search results - page 3 / 5 » Bidirectional Importance Sampling for Direct Illumination |
PAMI
2007
13 years 5 months ago
2007
The recent advanced representation for realistic real-world materials in virtual reality applications is the Bidirectional Texture Function (BTF) which describes rough texture app...
RT
1999
Springer
13 years 9 months ago
1999
Springer
: We present a new image-based process for measuring the bidirectional reflectance of homogeneous surfaces rapidly, completely, and accurately. For simple sample shapes (spheres a...
VC
2008
13 years 5 months ago
2008
Abstract We present an efficient method for importance sampling the product of multiple functions. Our algorithm computes a quick approximation of the product on-the-fly, based on ...
SIGGRAPH
1992
ACM
13 years 9 months ago
1992
ACM
We describe a physically-based Monte Carlo technique for approximating bidirectional reflectance distribution functions (BRDFs) for a large class of geometries by directly simulat...
CVPR
2004
IEEE
14 years 7 months ago
2004
IEEE
The appearance of surface texture as it varies with angular changes of view and illumination is becoming an increasingly important research topic. The bidirectional texture functi...