POV-Ray : Newsgroups : povray.general : Re: Lights - Wow! : Re: Lights - Wow! Server Time
2 Aug 2024 16:28:02 EDT (-0400)
  Re: Lights - Wow!  
From: Lutz-Peter Hooge
Date: 26 Aug 2004 06:46:42
Message: <412dbf92$1@news.povray.org>
Ross <rli### [at] everestkcnet> wrote:

> refracted light is not governed by fade_distance/fade_power is it? i think i
> recall reading that in the docs of 3.5. (opening docs for 3.6...) i always
> wondered why.

How bright an object appears depends on it's distance to the light source,
but it does NOT depend on it's distance to the camera!
(otherwise you wouldn't be able to see the moon, for example)

Since reflections/refractions can only occur in rays between camera and object,
but not between object/lightsource (without photon mapping, photon mapping 
should get the fading automatically correct, just like radiosity) it isn't 
necessary to handle light fading there.

Lutz-Peter


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.