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Review: Kd-tree Traversal Algorithms for Ray Tracing
https://dcgi.fel.cvut.cz/home/havran/ARTICLES/cgf2011.pdf
KD-Tree traversal (raytracing) - am I missing a case?
https://stackoverflow.com/questions/1852391/kd-tree-traversal-raytracing-am-i-missing-a-case
it happens if one polygon lies on the splitting plane, such that it's part of both cells and the ray goes through both cells. if the nearcell is tested, but the actual intersection happens in the space of the farcell (this is possible because the …
Fast, stackless kd-tree traversal in raytracing ... - Stack …
https://stackoverflow.com/questions/15632489/fast-stackless-kd-tree-traversal-in-raytracing-clarification-needed
I am trying to implement a real time ray tracer, and I was reading this interesting paper on a fast, stackless kd-tree traversal method, but it is unclear regarding certain concepts. At page 4, where it presents the rope construction algorithm, it doesn't explain what the 'split-plane' and 'split-axis' are exactly, and how the 'split-axis ...
Review: Kd-tree Traversal Algorithms for Ray Tracing
https://www.researchgate.net/publication/220507534_Review_Kd-tree_Traversal_Algorithms_for_Ray_Tracing
In this paper we review the traversal algorithms for kd-trees for ray tracing. Ordinary traversal algorithms such as sequential, recursive, and those with neighbour-links have different...
Review: Kd-tree Traversal Algorithms for Ray Tracing
https://onlinelibrary.wiley.com/doi/10.1111/j.1467-8659.2010.01844.x
Abstract In this paper we review the traversal algorithms for kd-trees for ray tracing. Ordinary traversal algorithms such as sequential, recursive, and those with neighbour-links have different limitations, which led to several new developments within the last decade.
Omnidirectional Ray Tracing Traversal Algorithm for kd …
https://www.researchgate.net/publication/224759148_Omnidirectional_Ray_Tracing_Traversal_Algorithm_for_kd-trees
traversal of kd-trees for groups of incoherent rays. 2 COHERENCE OF GROUPS OF RAYS Traversing groups of rays together allows for more efficient use of data level parallelism of SIMD hardware. The...
Understanding the Efficiency of kD-tree Ray-Traversal ... - UFPE
https://www.cin.ufpe.br/~als3/saap/ArturLiraDosSantos-ArtigoIJPP.pdf
This traversal (later referred by Havran [3] as Sequential traversal) is based on a sequential, but also cyclic top-down point-location search along the ray path within the kD-tree nodes. This way, interior nodes (specially the root node) have to be repeatedly visited. …
Omnidirectional Ray Tracing Traversal Algorithm for kd-trees
https://ieeexplore.ieee.org/document/4061546/
We propose a new kd-tree traversal algorithm for incoherent groups of rays which reduces number of intersection tests by more than 1.5times compared with splitt IEEE websites place cookies on your device to give you the best user experience. ... Omnidirectional Ray Tracing Traversal Algorithm for kd-trees
kd-tree raytracing traversal problems - GameDev
https://www.gamedev.net/forums/topic/430009-kd-tree-raytracing-traversal-problems/
itself, because then the ray intersects the split plane at t_split = 0. Also in this case it is not clear which node is the "near node" and which is the "far node". In these cases, you should only need to traverse one of the subtrees (the one that the ray direction points in).
Stackless KD-Tree Traversal for High Performance GPU Ray …
https://www.johannes-guenther.net/StacklessGPURT/StacklessGPURT.pdf
S. Popov, J. Günther, H.-P. Seidel, and P. Slusallek / Stackless KD-Tree Traversal for High Performance GPU Ray Tracing Figure 2: A kd-tree with “ropes”. Ropes link each leaf node of the kd-tree via its six faces directly to the corresponding adjacent node of that face or to the smallest node enclosing all adjacent nodes if there are ...
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