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» Computing the antipenumbra of an area light source
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CGF
2004
158views more  CGF 2004»
13 years 5 months ago
Combined Correlated and Importance Sampling in Direct Light Source Computation and Environment Mapping
This paper presents a general variance reduction method that is a quasi-optimal combination of correlated and importance sampling. The weights of the combination are selected auto...
László Szécsi, Mateu Sbert, L...
CA
1998
IEEE
13 years 10 months ago
Interactive Animation of Soft Shadows
Shadows are of great importance to computer graphics, especially for interactive animation due to the visual cues which they provide. Most research in the field of dynamic shadowi...
Adam D. Worrall, David Hedley, Derek J. Paddon
CGF
2006
126views more  CGF 2006»
13 years 5 months ago
Soft Shadow Maps: Efficient Sampling of Light Source Visibility
Shadows, particularly soft shadows, play an important role in the visual perception of a scene by providing visual cues about the shape and position of objects. Several recent alg...
Lionel Atty, Nicolas Holzschuch, Marc Lapierre, Je...
RT
2000
Springer
13 years 9 months ago
Soft Shadow Maps for Linear Lights
Soft shadows and penumbra regions generated by extended light sources such as linear and area lights are visual effects that significantly contribute to the realism of a scene. In ...
Wolfgang Heidrich, Stefan Brabec, Hans-Peter Seide...
ACCV
2006
Springer
13 years 9 months ago
Effects of Image Segmentation for Approximating Object Appearance Under Near Lighting
Shading analysis of an object under near lighting is not an easy task, because the direction and distance of the light source vary over the surface of the object. Observing a small...
Takahiro Okabe, Yoichi Sato