4b67af7b$1@news.povray.org...
> Really, the thing that's making it slow is the refractive objects.  I 
> could slap no_image on them and get the nice media/photon effects in a few 
> minutes.  Turn off the media and photons and have the tetrahedra on and it 
> takes a few days.
>
> Is there any way to speed that up?  How do commercial renderers compare 
> speedwise for refractives?  What do they do differently?
>
> --
The keyword that comes in mind is adc_bailout... did you try setting it 
higher?

Marc

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