now left pawn is transparent only, to illustrate refraction as such. Nightjob again.

I tried to do the same for Fresnel, but I had to kill the render after no progress within 48 hours at 100%. Bounces = 12, with reflection and IDL as above.

(I then set the materials for the ball-heads only instead, which rendered in an hour or so thanks to lacking complexity).

- - - - - 

Usually I'm wrong. But to be effective and efficient, I don't need to be correct or accurate.

visit www.aRtBeeWeb.nl (works) or Missing Manuals (tutorials & reviews) - both need an update though