POV-Ray : Newsgroups : povray.binaries.images : A test-need a little help on lighting : Re: A test-need a little help on lighting Server Time
7 Aug 2024 17:26:54 EDT (-0400)
  Re: A test-need a little help on lighting  
From: Alain
Date: 18 Jan 2006 18:59:17
Message: <43ced655$1@news.povray.org>
fls13 nous apporta ses lumieres en ce 18/01/2006 18:23:
> I've got a parallel light positioned outside the window, but it's not
> casting light very realistically. What would be the best light type to use
> so the light fans out once it passes thru the mesh's "window"?
> 
> 
> ------------------------------------------------------------------------
> 
If you want to simulate the sun, parallel is the best choice, as the "faning" from the
sun is 
negligeable.
A way to improve realism would be to use area_light. Make it circular, use a
relatively dense aray, 
say 17*17 or 33*33, and adaptive 1(use 2 or 3 if there are artefacts). Use a
relatively small 
dimention for the area_light axis, the apparent sun's radius been 0.5 degree.
You can also use some scathering media to make the light beams to show. It will
increase rendering 
time significantly.
Using radiosity will make the bright parts to light-up unlight parts. It will also
increase 
rendering time.

-- 
Alain
-------------------------------------------------
Dachshunds are really small crocodiles with fur.


Post a reply to this message

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