POV-Ray : Newsgroups : povray.newusers : A common lamp light_source... : Re: A common lamp light_source... Server Time
29 Jul 2024 08:18:16 EDT (-0400)
  Re: A common lamp light_source...  
From: Alain
Date: 29 Apr 2006 12:36:47
Message: <4453961f$1@news.povray.org>
Gyscos nous apporta ses lumieres en ce 29/04/2006 11:28:
> Okay...
> The doc said something about a new way of calculating one the fade_power
> reached 1000, i thought that meant I had to use much higher value than just
> 1 or 2...
> Thanks !
> 
> 
The fade_power you mention here is for the fading in the interior of object, NOT
light_source.

You may effectively need to use high rgb values for your lamp. It all depend on the
proportions 
between your scene distances ant the fade_distance. If tou want "nominal" illumination
at a distance 
of 1 and you have a fade_distance of 0.1 (10 cm), you need to multiply the light
intensity by 100, 
if fade_distance is 0.01 (1 cm), you need 10000* the "nominal" value.
Normal, physicaly exact, fade_power is 2. A fade_power of 1 can be used to simulate a
very long and 
narrow light_source.

-- 
Alain
-------------------------------------------------
Agnostic #2: Did someone shit?


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