>> http://www.ignorancia.org/en/index.php?page=Lightsys
> 
> Duh! These are all single-pass renders?

   You mean the demo images on the Lightsys page? Then, yes, these are all
single pass radiosity, and in fact with fairly dull rad settings.

> I guess I want those in POV-Ray "natively"...

  Yes, having the raytracer to handle internally spectral data instead rgb
will lead to more "physically correct" lighting and texturing, but I think
it's a bit too much work. And CIE.inc can be used for the same purposes, if
you know what you're doing... ;)

  Regards,

--
Jaime

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