POV-Ray : Newsgroups : povray.binaries.images : Dome Array Lighting test : Re: Dome Array Lighting test Server Time
12 Aug 2024 11:13:23 EDT (-0400)
  Re: Dome Array Lighting test  
From: Doug Eichenberg
Date: 25 Aug 2003 18:25:58
Message: <3f4a8cf6$1@news.povray.org>
Should work fine with fewer lights too... I've seen some examples with maybe
17 lights.  The trick is to turn shadows off for the array and use a
separate light for the shadow casting, but I liked the results with a shadow
casting dome array better.

--
Doug Eichenberg
www.getinfo.net/douge
dou### [at] nlsnet
JC (Exether) <no### [at] spamfr> wrote in message news:3f4a11e5@news.povray.org...
> Nice pic, looking quite photorealistic.
> I downloaded your source to give it a try, it takes a long time to
> render. Can't you get a very similar lighting using less lights ? There
> is almost 200 in the example, is all that really necessary ?
>
> JC
>
> Doug Eichenberg wrote:
> > I recently read a book on CGI lighting techniques where the author
discussed
> > dome arrays.  I wrote a short macro that creates the same thing by
creating
> > a hemisphere of point lights.  The intensity of the lights varies with
> > latitude, creating a hotspot at the top of the hemisphere.  I also had
it
> > add in a few negative lights to give some subtle variance in the
lighting.
> > Anyhow, the results were pretty nice... very soft shadows with a
radiosity
> > lit look.  Rendered fairly fast too.
> >
> > --
> > Doug Eichenberg
> > www.getinfo.net/douge
> > dou### [at] nlsnet
> >
> >
> >
>


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