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A Case Study of the 3D Water Vapor Tomography Model Based on a Fast ...
https://www.mdpi.com/2072-4292/13/12/2422#:~:text=A%20fast%20voxel%20traversal%20algorithm%20for%20ray%20tracing,%28GNSS%29%20meteorology%20%28GNSS%2FMET%29%20stations%20in%20Hebei%20Province%2C%20China.
(PDF) A Fast Voxel Traversal Algorithm for Ray Tracing
https://www.researchgate.net/publication/2611491_A_Fast_Voxel_Traversal_Algorithm_for_Ray_Tracing
In computer graphics, voxels are used for fast ray tracing [1], voxelisation of surfaces and solids [2,3], shadow [4] and visibility analysis [5] [6] [7]. These are mostly focused on fast-real ...
A Fast Voxel Traversal Algorithm for Ray Tracing
http://www.cse.yorku.ca/~amana/research/grid.pdf
To correctly traverse the grid, a traversal algorithm must visit voxels a, b, c, d, e, f, g and h in that order. The equation of the ray isu→+ t→vfor t ≥0. The new traversal algorithm breaks down the ray into intervals of t, each of which spans one voxel. We start at the ray origin and visit each of these voxels in interval order.
A Fast Voxel Traversal Algorithm for Ray Tracing
https://www.semanticscholar.org/paper/A-Fast-Voxel-Traversal-Algorithm-for-Ray-Tracing-Amanatides-Woo/7620a26cf2ffc6a4d634c7cde816d2f716904d26
Computer Science. A fast and simple voxel traversal algorithm through a 3D space partition is introduced. Going from one voxel to its neighbour requires only two floating point comparisons and one floating point addition. Also, multiple ray intersections with objects that are in more than one voxel are eliminated.
A fast voxel traversal algorithm for ray tracing - MathWorks
https://www.mathworks.com/matlabcentral/fileexchange/26852-a-fast-voxel-traversal-algorithm-for-ray-tracing
A fast and simple voxel traversal algorithm through a 3D space partition (grid) proposed by J. Amanatides and A. Woo (1987). Author: Jesús P. Mena-Chalco. References: [1] "A fast voxel traversal algorithm for ray tracing" J. Amanatides and A. Woo. Eurographics, 87(3), 1987 [2] Other implementations of this algorithm are available from the Web:
A Fast Voxel Traversal Algorithm for Ray Tracing - EG
https://diglib.eg.org/handle/10.2312/egtp19871000
Abstract. A fast and simple voxel traversal algorithm through a 3D space partition is introduced. Going from one voxel to its neighbour requires only two floating point comparisons and one floating point addition. Also, multiple ray intersections with objects that are in more than one voxel are eliminated. BibTeX.
A Fast Voxel Traversal Algorithm for Ray Tracing · GitHub
https://gist.github.com/Nik--/0beb2f5f2b93182e467db86223f6e1d2
// The traversal algorithm breaks down the ray into intervals of 't' (or lazily said "time"), each of which spans one voxel. // We start at the ray origin and visit each of these voxels in interval order. // The integer variables X and Y are initialized to the starting voxel coordinates. In addition, the variables stepX and
GitHub - francisengelmann/fast_voxel_traversal: Fast and …
https://github.com/francisengelmann/fast_voxel_traversal
Fast Voxel Traversal Algorithm. This is an implementation of Amanatides et al. [1]: Given a 3D voxel grid, a starting position and an ending position in 3D space, we shoot a ray from the starting position to the ending position. This algorithm then lists all the voxel ID's being traversed by the ray.
GitHub - feelinfine/tracer: A C++ implementation of "A …
https://github.com/feelinfine/tracer
A C++ implementation of "A Fast Voxel Traversal Algorithm for Ray Tracing" (John Amanatides, Andrew Woo). Works with any ray direction. Modified for selection by frame or convex polygon on a grid. This is a header-only implementation. Requires a C++14 compiler. Usage example: { using namespace trace; std::vector<V2d> points = { { 102, 363 }, { 304, 503 }, { 515, 387 }, { 423, 147 }, …
Fast raytracing through a 3D grid - File Exchange
https://www.mathworks.com/matlabcentral/fileexchange/56527-fast-raytracing-through-a-3d-grid
A mex-implementation of the raytracing (voxel traversal) algorithm proposed by J. Amanatides and A. Woo (1987). The input to the function is a line segment defined by two points in 3D, and the output is a list of linear indexes of voxels that are intersected by the line segment. The function performs efficient grid-line intersection test prior to running the traversal …
A Case Study of the 3D Water Vapor Tomography Model …
https://www.mdpi.com/2072-4292/13/12/2422
A fast voxel traversal algorithm for ray tracing was applied to build a 4 × 4 × 20 tomography model using the observation data of 11 ground-based Global Navigation Satellite System (GNSS) meteorology (GNSS/MET) stations in Hebei Province, China.
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