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GRAPHICSINTERFACE
2003
13 years 9 months ago
Entropy-based Adaptive Sampling
Ray tracing techniques need supersampling to reduce aliasing and/or noise in the final image. Since not all the pixels in the image require the same number of rays, supersampling...
Jaume Rigau, Miquel Feixas, Mateu Sbert
SIGGRAPH
2010
ACM
14 years 2 days ago
Micropolygon ray tracing with defocus and motion blur
We present a micropolygon ray tracing algorithm that is capable of efficiently rendering high quality defocus and motion blur effects. A key component of our algorithm is a BVH (...
Qiming Hou, Hao Qin, Wenyao Li, Baining Guo, Kun Z...
VIS
2007
IEEE
216views Visualization» more  VIS 2007»
14 years 8 months ago
Interactive Isosurface Ray Tracing of Time-Varying Tetrahedral Volumes
Abstract-- We describe a system for interactively rendering isosurfaces of tetrahedral finite-element scalar fields using coherent ray tracing techniques on the CPU. By employing s...
Ingo Wald, Heiko Friedrich, Aaron Knoll, Charle...
VISUALIZATION
2000
IEEE
13 years 12 months ago
Four-dimensional non-linear ray tracing as a visualization tool for gravitational physics
In this paper, general relativistic ray tracing is presented as a tool for gravitational physics. It is shown how standard three-dimensional ray tracing can be extended to allow f...
Daniel Weiskopf
AFRIGRAPH
2001
ACM
13 years 11 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