POV-Ray : Newsgroups : povray.general : Cloud technique ???? : Re: Cloud technique ???? Server Time
9 Aug 2024 09:03:37 EDT (-0400)
  Re: Cloud technique ????  
From: Chris Huff
Date: 10 Aug 2000 11:36:09
Message: <chrishuff-D0A8C4.10371410082000@news.povray.org>
In article <3992C208.2FF87C6A@inapg.inra.fr>, Gilles Tran 
<tra### [at] inapginrafr> wrote:

> I've been to this site countless times but never noticed that this page
> was so detailed :
> http://freespace.virgin.net/hugo.elias/models/m_clouds.htm
> Question for the POV gurus : is it possible to implent this either as a
> macro or directly in the POV code ?

This is basically mapping a perlin noise texture onto a sphere 
representing the sky, layering another texture over it to make the sky 
and clouds near the sun glow, adding a lens flare, and using fog. You 
could use wrinkles, turbulated bozo, or a custom pattern done with 
isosurface functions for the cloud pattern.

To animate them, you might try averaging or multiplying several patterns 
together(maybe using isosurface functions to get it exactly right), and 
translating them in different directions.

-- 
Christopher James Huff - Personal e-mail: chr### [at] maccom
TAG(Technical Assistance Group) e-mail: chr### [at] tagpovrayorg
Personal Web page: http://homepage.mac.com/chrishuff/
TAG Web page: http://tag.povray.org/


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