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174
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CGF
2011
14 years 7 months ago
Two-Level Grids for Ray Tracing on GPUs
We investigate the use of two-level nested grids as acceleration structure for ray tracing of dynamic scenes. We propose a massively parallel, sort-based construction algorithm an...
Javor Kalojanov, Markus Billeter, Philipp Slusalle...
CGF
2011
14 years 7 months ago
RTSAH Traversal Order for Occlusion Rays
We accelerate the finding of occluders in tree based acceleration structures, such as a packetized BVH and a single ray kd-tree, by deriving the ray termination surface area heur...
Thiago Ize, Charles D. Hansen
100
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STOC
2003
ACM
140views Algorithms» more  STOC 2003»
16 years 3 months ago
Cutting triangular cycles of lines in space
We show that n lines in 3-space can be cut into O(n2-1/69 log16/69 n) pieces, such that all depth cycles defined by triples of lines are eliminated. This partially resolves a long...
Boris Aronov, Vladlen Koltun, Micha Sharir
128
Voted
CAGD
2010
132views more  CAGD 2010»
15 years 28 days ago
Simplicial diffeomorphisms
In this paper we introduce a new framework for geometric modeling that combines implicit and parametric surface representations with volumetric warpings. The framework is based on...
Vinícius Mello, Luiz Velho
154
Voted
CGF
2010
146views more  CGF 2010»
15 years 3 months ago
Polygonal Boundary Evaluation of Minkowski Sums and Swept Volumes
We present a novel technique for the efficient boundary evaluation of sweep operations applied to objects in polygonal boundary representation. These sweep operations include Mink...
Marcel Campen, Leif Kobbelt