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SIGGRAPH
1994
ACM
14 years 21 days ago
A fast shadow algorithm for area light sources using backprojection
The fast identification of shadow regions due to area light sources is necessary for realistic rendering and for discontinuity meshing for global illumination. A new shadow-determ...
George Drettakis, Eugene Fiume
RT
2004
Springer
14 years 1 months ago
Hemispherical Rasterization for Self-Shadowing of Dynamic Objects
We present a method for interactive rendering of dynamic models with self-shadows due to time-varying, lowfrequency lighting environments. In contrast to previous techniques, the ...
Jan Kautz, Jaakko Lehtinen, Timo Aila
SI3D
2010
ACM
14 years 1 months ago
Epipolar sampling for shadows and crepuscular rays in participating media with single scattering
Scattering in participating media, such as fog or haze, generates volumetric lighting effects known as crepuscular or god rays. Rendering such effects greatly enhances the realism...
Thomas Engelhardt, Carsten Dachsbacher
SIGGRAPH
1999
ACM
14 years 28 days ago
Computing Exact Shadow Irradiance Using Splines
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...
Michael M. Stark, Elaine Cohen, Tom Lyche, Richard...
GI
2008
Springer
13 years 9 months ago
Tracking Mobile Phones on Interactive Tabletops
: The number of ” interactive surface” systems, especially tabletop interfaces, in public is increasing. As more and more casual users interact with such systems, they may wish...
Florian Echtler, Gudrun Klinker