Triangle and Ray Intersection软件

Fast vectorized triangle/ray intersection algorithm

软件应用简介

Ray/triangle intersection using the algorithm proposed by M?ller and 

Trumbore (1997), implemented as highly vectorized MATLAB code. 

The algorithm can work with one and two sided surfaces, as well as, with 

infinite lines, rays (lines bounded on one side) and segments (lines bounded on 

both sides). 

Input (all arrays in in Nx3, where N is number of vertices or rays): 

orig : ray’s origin 

dir : ray’s direction 

vert0, vert1, vert2: vertices of the triangle 

Output: 

Intersect – boolean array of length N 

t – distance from the ray origin to the intersection point in |dir| 

u,v – barycentric coordinates of the intersection point units 

xcoor – carthesian coordinates of the intersection point 

In addition PointInsideVolume is 3D equivalent to 2D inpolygon function and can test if 

array of points is inside or outside any volume defined by the surface grid.

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结果示意

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