First direct path forest structure rays are returned from direct par model. Needs much refinement but nice to have the first chunk functioning. Below see for 45 deg. elevation and 37 azimuth with a max distance of 100 horizontal meters.
Example path through a randomly generated forest. next step is to deal with azimuth and elevation issues beyond 180 degrees, etc…
Considering now various approaches to deal with light extinction, including a inverted Beer-Lambert exponential extinction equation where “y = e-k*LAI”
