Ray tetrahedron intersection

[arouwane]

Hello!

I am trying to compute the intersection between a ray and a tetrahedron. Does anyone know if this is already implemented in Geogram ?

Thank you in advance for your help.

Best regards.

[BrunoLevy]

Hello,
The function does not exist in geogram, but it is quite easy to implement,
In geogram/mesh/mesh_AABB.cpp, there is a ray_triangle_intersection() function that is used internally, not part of the API now, copy it to your file, then call it four times on the four triangles of your tetrahedron. If needed, I will make it part of the API (in a .h) in a future release.

[arouwane]

I will implement it this way !
Thanks !