POV-Ray : Newsgroups : povray.general : shadowless : Re: shadowless Server Time
14 Aug 2024 07:19:05 EDT (-0400)
  Re: shadowless  
From: Lars W 
Date: 23 Jun 1999 16:33:42
Message: <377144a6@news.povray.org>
It is also possible to add the no_shadow keyword to the objects, that should
do the trick too !

greetings Lars

> Hello out there!
>
> My problem: shadowless lights and polished surfaces don't work together
>
> I'm sure I already read about this some years ago when I started using
> PovRay in v2.x. However, I just encountered the phenomen again. When you
> define a scene and use the shadowless keyword to prevent the light
> source from casting shadows this lightsource will not highlight an
> object with a highlighting surface finish as e.g. phong. Is it a bug or
> a feature? I don't know but since shadowless lights are originally meant
> to "fill up" the light in the scene it might be a feature.
>
> I'm using shadowless lights because I want to render a complex scene
> representing a crystall lattice with some 10000 atoms in it. Not using
> shadowless lights inevitabily leads to the inner atoms being always in
> the shadow of the outer ones.
> However - even if it is not at all scientific but perhaps artistic - I
> might like to have polished surfaces with small highlights.
>
> Is there anyone who knows a trick to solve this problem except for using
> one lightsource for every atom???
>
> You can see an example of what I'm rendering at
> http://www.geocities.com/SiliconValley/Lakes/5432/test/sic.jpg
>
> Uwe.
>
> -------------------------------------------------
> Uwe Zimmermann                uwe### [at] geocitiescom
> Dipl. Phys.                     uwe### [at] elekthse
>
>            Department of Electronics
>             Solid State Electronics
>          Royal Institute of Technology
>                  Electrum 229
>            S-16440 Kista-Stockholm
>                    Sweden
>
> http://www.ele.kth.se/FTE/personal/pers_uwe.html
> ------------------------------------------------


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