beam tracing issue

[Hao-HUST]

Hi, bduvenhage.

Thanks for sharing your great work on Github.

I have been read your some papers related to beam tracing which inspired me a lot.

Now I have some implementation problems to seek your help:

The beam is defined as the combination of origin vertex and three light directions. I need to test whether the 3D triangular mesh is hit by the beam or not. And then, if the mesh is hit, the original beam should be divided into several new beams with the same structure, and the shadow region should be clipped.

Is there any clue on your engine to helpful for my task?

Thanks again.