A slightly different version with a bit more reflections (twice longer time in the solution) and Opacity[.5] added to reflected lines.
Opacity[.5]
Interesting that I didn't use opacity in the original. I have some vague recollection that there was a reason, but I can't remember now.
- another post of yours has been selected for the Staff Picks group, congratulations !
We are happy to see you at the top of the "Featured Contributor" board. Thank you for your wonderful contributions, and please keep them coming!
