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» Exploiting coherence of shadow rays
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AFRIGRAPH
2001
ACM
13 years 8 months ago
Exploiting coherence of shadow rays
We present independent method to reduce the number of shadow ray tests. It can be used with standard acceleration ray tracing algorithms. Our method is conservative and produces t...
Andrzej Lukaszewski
ASPLOS
2009
ACM
14 years 5 months ago
StreamRay: a stream filtering architecture for coherent ray tracing
The wide availability of commodity graphics processors has made real-time graphics an intrinsic component of the human/computer interface. These graphics cores accelerate the z-bu...
Karthik Ramani, Christiaan P. Gribble, Al Davis
CGF
2000
95views more  CGF 2000»
13 years 5 months ago
LCTS: Ray Shooting using Longest Common Traversal Sequences
We describe two new techniques of ray shooting acceleration that exploit the traversal coherence of a spatial hierarchy. The first technique determines a sequence of adjacent leaf
Vlastimil Havran, Jirí Bittner
JGTOOLS
2006
107views more  JGTOOLS 2006»
13 years 5 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
EGH
2009
Springer
13 years 2 months ago
Faster incoherent rays: Multi-BVH ray stream tracing
High fidelity rendering via ray tracing requires tracing incoherent rays for global illumination and other secondary effects. Recent research show that the performance benefits fr...
John A. Tsakok