Just discovered MoI yesterday
From:
Mike K4ICY (MAJIKMIKE)
11 Dec 2013 (30 of 33)
6338.30
Metropolis Light Transport is what I used.
...and you have to know something about the IoR (Incident of Refraction & Reflection) of the gem material.
The type of spot lighting is also crucial.
Visit
K4ICY.com
for my Moi3D tutorials!