I'd say that if you are concerned with "accurate" light
spec's and acurate specification of surfeace material you
need to look at the radiance package. They have gone to
great lenghts to incorperate reality. See:

	http://radsite.lbl.gov/radiance/HOME.html


21th century fox wrote:
> 
> Hi,
> 
> I was recently asked by a friend to help him getting started in the use of
> his freshly buyed computer. He's a lighting professionnal and wants to take
> a chance to give up paying lots of money to badly tempered professionnals
> who render his lighting designs for him. He wants also to use the power of
> the computer to figure out things for himself.
> I'm totally innocent in ray-tracing, but being a programmer, I liked the
> pov-ray approach, and I definitely think that the best things are for free.
> So I downloaded the renderer, and now I wonder what possibilities exist to
> simulate professional lighting designs to be fed to POV. I imagine my friend
> to be willing to include special lamps into the scenes he plans to create.
> Are such lamps easy to model ?
> 
> Thanks for your help,
> 
> Candide Kemmler

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