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Fast raytracing through a 3D grid - File Exchange - MathWorks
https://www.mathworks.com/matlabcentral/fileexchange/56527-fast-raytracing-through-a-3d-grid#:~:text=A%20mex-implementation%20of%20the%20raytracing%20%28voxel%20traversal%29%20algorithm,voxels%20that%20are%20intersected%20by%20the%20line%20segment.
(PDF) A Fast Voxel Traversal Algorithm for Ray Tracing
https://www.researchgate.net/publication/2611491_A_Fast_Voxel_Traversal_Algorithm_for_Ray_Tracing
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 …
Fast voxel and polygon ray-tracing algorithms in intensity …
https://pubmed.ncbi.nlm.nih.gov/16752572/
We present work on combining three algorithms to improve ray-tracing efficiency in radiation therapy dose computation. The three algorithms include: An improved point-in-polygon algorithm, incremental voxel ray tracing algorithm, and stereographic projection of beamlets for voxel truncation. The point-in-polygon and incremental voxel ray-tracing algorithms have been used …
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
http://www.cse.yorku.ca/~amana/research/grid.pdf
of t, each of which spans one voxel. We start at the ray origin and visit each of these voxels in interval order. The traversal algorithm consists of two phases: initialization and incremental traversal. The initial-ization phase begins by identifying the voxel in which the ray origin,u→, is found. If the ray origin is out-
A Fast Voxel Traversal Algorithm for Ray Tracing
https://www.semanticscholar.org/paper/A-Fast-Voxel-Traversal-Algorithm-for-Ray-Tracing-Amanatides-Woo/7620a26cf2ffc6a4d634c7cde816d2f716904d26
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. Introduction In recent years, ray tracing has become the algorithm of choice for generating high fidelity images.
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.
Fast Voxel Traversal Algorithm Over Spherical Grids
https://github.com/spherical-volume-rendering/svr-algorithm
Currently, yt implements a fast voxel traversal over a cartesian coordinate grid. The objective is to develop a fast voxel traversal over a spherical coordinate grid, based on ideas from Amanatides and Woo’s seminal paper on fast voxel traversal for ray tracing. Authors Chris Gyurgyik (cpg49 at cornell.edu) Ariel Kellison (ak2485 at cornell.edu)
algorithm - siddon - voxel raycasting tutorial - Code Examples
https://code-examples.net/en/q/bcb4df
Initialization for X-coordinate variables (the same for Y) DX = X2 - X1 tDeltaX = GridCellWidth / DX tMaxX = tDeltaX * (1.0 - Frac(X1 / GridCellWidth)) //Frac if fractional part of float, for example, Frac(1.3) = 0.3, Frac(-1.7)=0.3. Example:
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 and Accurate Ray-Voxel Intersection Techniques …
https://www.sci.utah.edu/~wald/Publications/2004/iso/IsoIsec_VMV2004.pdf
With ray tracing the necessary ray-surface intersec-tions are computed on the fly at all relevant voxels, which allows for instantly changing the iso-value without the need for a costly re-computation of an iso-surface representation. Furthermore, we target full ray tracing for the ability to fully integrate volume rendering with standard surface rendering, including advanced ef-
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