3d box intersection algorithm

The proposed solution is for a point-vector pair. I'm looking for the equations for two lines, each defined by two points in space. Line 1: (x1,y1,z1) and (x2,y2,z2)

Sep 20, 2018 · The core of this method is a new algorithm for computing the intersection point and normal of a 3D ray with an arbitrarily-oriented 3D box, which also has non-rendering applications in GPU physics, such as ray casting and particle collision detection.
Calculate the intersection of two geometries. Description. The free function intersection calculates the spatial set theoretic intersection of two geometries. Synopsis. template < typename Geometry1, typename Geometry2, typename GeometryOut > bool intersection (Geometry1 const & geometry1, Geometry2 const & geometry2, GeometryOut & geometry_out ... intersection point and normal of a 3D ray with an arbitrarily-oriented 3D box, which also has non-rendering applications in GPU physics, such as ray casting and particle collision de-tection. We measured throughput improvements of 2×to 10×for the intersection operation versus previous ray-box intersection algorithms on GPUs.

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Mar 17, 2019 · The intersection of a triangle and a bounding box rarely has only one point; most of the times, its an edge. In case you do this without predefined methods: You could simply write some algorithms that test whether one point is in the box and the other points are out of it, then an intersection is quaranteed (the intersection point can then ...

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3d box intersection algorithm

$\begingroup$ You are computing the intersection of B and triangle's bounding box? Your result is the superset of what I am looking for. Your result is the superset of what I am looking for. But note, that triangle's bounding box may intersect B, but not intersect the triangle. $\endgroup$ – Ivan Kuckir Jul 16 '13 at 19:42

use an algorithm to detect the intersection of arbitrary oriented boxes, in absolute coordinates, which would be much more complex. or recalculate the boundary box at every frame in axis aligned absolute coordinates and doing things at every frame is a big overhead.
The idea is to treat the box as the space inside of three pairs of parallel planes. The ray is clipped by each pair of parallel planes, and if any portion of the ray remains, it intersected the box. A simple implementation of this algorithm might look like this (in two dimensions for brevity):

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Intersection of line segment with axis-aligned box in C#. I'm looking for an algorithm that determines the near and far intersection points between a line segment and an axis-aligned box. Here is my method definition: If the line segment doesn't intersect the box, the method should return an empty Point3D array.

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