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CGF
2006
126views more  CGF 2006»
13 years 7 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...
EGH
2007
Springer
14 years 1 months ago
Practical logarithmic rasterization for low-error shadow maps
Logarithmic shadow maps can deliver the same quality as competing shadow map algorithms with substantially less storage and bandwidth. We show how current GPU architectures can be...
Brandon Lloyd, Naga K. Govindaraju, Steven E. Moln...
JGTOOLS
2006
107views more  JGTOOLS 2006»
13 years 7 months ago
Efficient Shadows for Sampled Environment Maps
This paper addresses the problem of efficiently calculating shadows from environment maps in the context of ray-tracing. Since accurate rendering of shadows from environment maps ...
Aner Ben-Artzi, Ravi Ramamoorthi, Maneesh Agrawala
CGF
2006
166views more  CGF 2006»
13 years 7 months ago
Rendering Soft Shadows using Multilayered Shadow Fins
Generating soft shadows in real time is difficult. Exact methods (such as ray tracing, and multiple light source simulation) are too slow, while approximate methods often overesti...
Xiao-Hua Cai, Yun-Tao Jia, Xi Wang, Shi-Min Hu, Ra...
ICPR
2008
IEEE
14 years 8 months ago
Usage of needle maps and shadows to overcome depth edges in depth map reconstruction
Photometric stereo is a method of recovering surface normals (needle map) from images. The surface integral of surface normals is used to reconstruct a depth map; however, the dep...
Koh Kakusho, Koki Hamada, Masaaki Iiyama, Michihik...