Vue d'Esprit 2, a full object renderer in the Bryce style
(but MUCH better, IMHO) has a feature in which a blur
can be specified for transparent or reflective object --
lightrays which encounter the surface are split to make
a blurred reflection or transmission.

ref : http://www.e-onsoftware.com/

This is a very nice feature, I think.  It is a potential
upgrade for POV.

Dan

-- 
http://www.flash.net/~djconnel/

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