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Interactive k-D Tree GPU Raytracing - Stanford University
https://graphics.stanford.edu/papers/i3dkdtree/gpu-kd-i3d.pdf#:~:text=A%20typical%20k-d%20tree%20traversal%20algorithm%20takes%20a,and%20hence%20triangles%2C%20in%20front%20to%20back%20order.
Review: Kd-tree Traversal Algorithms for Ray Tracing
https://onlinelibrary.wiley.com/doi/10.1111/j.1467-8659.2010.01844.x
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. We describe algorithms exploiting ray coherence and algorithms designed with specific hardware …
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://dcgi.fel.cvut.cz/home/havran/ARTICLES/cgf2011.pdf
A kd-tree [Ben75] is one of the hierarchical data struc- tures often used for ray tracing algorithms. It is a special case of a BSP tree [FKN80], recursively partitioning space with planes that are perpendicular to the axes of a coordi- nate system. Every inner node of the tree has a defined split- ting plane, which creates two separate half-spaces.
Review: Kd‐tree Traversal Algorithms for Ray Tracing
https://onlinelibrary.wiley.com/doi/full/10.1111/j.1467-8659.2010.01844.x
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. We describe algorithms exploiting ray coherence and algorithms designed with specific hardware …
Omnidirectional Ray Tracing Traversal Algorithm for kd …
https://www.researchgate.net/publication/224759148_Omnidirectional_Ray_Tracing_Traversal_Algorithm_for_kd-trees
The kd-tree traversal algorithm also benefits from an early exit strategy: traversing of ray a through cell R can be avoided if this ray hits a triangle inside cell L before entering cell R (see...
kD-Tree Traversal Implementations for Ray Tracing on …
https://www.semanticscholar.org/paper/kD-Tree-Traversal-Implementations-for-Ray-Tracing-A-Santos-Teixeira/20d562f16fa51a440c8b39b2cee8afab9b6b67ea
This work demonstrates two kd-tree traversal algorithms suitable for GPU implementation and integrates them into a streaming raytracer and identifies load balancing and input data recirculation as two fundamental sources of inefficiency when raytracing on current graphics hardware. Expand 325 PDF View 1 excerpt, references methods
Omnidirectional Ray Tracing Traversal Algorithm for kd …
https://ieeexplore.ieee.org/document/4061546/
Omnidirectional Ray Tracing Traversal Algorithm for kd-trees. Abstract: 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 splitting the group into coherent subgroups. Published in: 2006 IEEE Symposium on Interactive Ray Tracing.
KD-Tree Acceleration Structures for a GPU Raytracer
https://graphics.stanford.edu/papers/gpu_kdtree/kdtree.pdf
A typical kd-tree traversal algorithm for raytracing, taken from [PH04], is shown in Figure 2. The algorithm takes as input a tree and a ray, and searches for the rst primitive in the tree that is intersected by the ray. The tree is traversed starting at the root, and a stack is used as a priority-ordered list of nodes left to visit.
Stackless KD-Tree Traversal for High Performance GPU Ray …
https://www-sop.inria.fr/members/Stefan.Popov/media/StacklessKDTreeTraversal_EG07.pdf
Algorithm 1: Single Ray Stackless KD-Tree Traversal 1: R = (O,D) . The ray 2: N←the root node . ≡current traversed node 3: λentry ←Entry distance of R in the tree 4: λexit ←Exit distance of R in the tree 5: while λentry < exit do 6:. Down traversal 7: Pentry ←O+λentry·D 8: while ¬is-leaf(N) do 9: N ← ˆ Nleft-child, if Pentry on left of split
Understanding the Efficiency of kD-tree Ray-Traversal ... - UFPE
https://www.cin.ufpe.br/~als3/saap/ArturLiraDosSantos-ArtigoIJPP.pdf
3.1 kD-tree Ray-traversal Techniques The first known kD-tree ray-traversal algorithm was introduced by Kaplan [15]. This traversal (later referred by Havran [3] as Sequential traversal) is based on a sequential, but also cyclic top-down point …
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