Just as a distraction, I found the ray tracing button in Autodesk Inventor and decided to abuse it:

And of course I just had to for comparisons sake:

I had way too much fun making these ray tracing renders! They did take 20-40 minutes each with 100% CPU usage though...

(Not sponsored by Nvidia).

Make sure to check out the project log just before this one as I uploaded two at once.