POV-Ray : Newsgroups : povray.binaries.scene-files : Can't get emission to work! : Re: Can't get emission to work! Server Time
15 May 2024 14:41:00 EDT (-0400)
  Re: Can't get emission to work!  
From: clipka
Date: 8 Jun 2010 06:53:44
Message: <4c0e2138$1@news.povray.org>
Am 07.06.2010 20:28, schrieb Alain:

> Why are you setting ambient_light 0? There is no reason for doing that,
> even in a radiosity scene, especialy if you want anything to actualy
> glow beside emissive medias.
> The purpose of that setting is to globaly change the colour of the
> ambient part of all finishes.
>
> The best way is to set the default finish to have amnient 0.

( I personally disagree - both solutions are just kludges, and both have 
disadvantages. My personal preference is to set ambient_light to some 
very low value when using radiosity - e.g. 0.001 - and set ambient to a 
correspondingly high value - in this case 1000 - for objects that should 
appear to be glowing (again, only when using radiosity).

The /really/ best way to do it, however, would be to patch POV-Ray so 
that object "glow" could be modeled without misusing the classic ambient 
mechanism. )


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