scott escreveu:
>> OK I fixed it.  The dark areas in the reflection are actually the sky, 
>> not the floor!  So I put a white sky in there (instead of black) and 
>> it looks exactly right now. (the dark area in the reflection *is* the 
>> floor in the distance)
> 
> OK maybe not totally fixed.  I got the lighter reflection bit ok, but 
> now the dark areas around the caustics inside the rings are not as black 
> as the original.  I give up!

LOL

good enough to me and I wonder about render time.

Yes, either it's too dark or too bright when playing with it.  I also 
tried lots of postprocessing options, to no good.  Mentalray's 
dielectric shader definetely has an edge here, though I wonder about its 
physical plausibility since 2 physical-based renderers were put to try 
to mimic it and could not.  Still, real or not, it looks damn good... :)


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