> The crystal is very realistic, and I agree with Bald Eagle, a different 
> background could increase this realism.
> 
> Another thing: the crystal is vertical and gives a strange feeling to be 
> unaffected by the gravity... have you thought of adding a rock or 
> something else as a base?
> 
> 
> Paolo
> 
I understand the image as a very nice technical demonstration of shaping 
and texturing gems. A base would hide some of the caustics. I think I 
will have a look into this issue. I played a bit with photons too.

Best regards
Michael

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