POV-Ray : Newsgroups : povray.binaries.scene-files : Can't get emission to work! : Re: Can't get emission to work! Server Time
26 Jun 2024 06:34:00 EDT (-0400)
  Re: Can't get emission to work!  
From: SharkD
Date: 8 Jun 2010 12:05:20
Message: <4c0e6a40@news.povray.org>
On 6/8/2010 6:53 AM, clipka wrote:
> 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. )

I'm using LightSys by the way. The demo scenes all tend to turn ambient 
off by default.

-- 
http://isometricland.com


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