In article <40a33b95@news.povray.org>,
 Sascha Ledinsky <sas### [at] userssourceforgenet> wrote:

> In some cases using one (or more) y planes will produce better looking clouds 
> than a sphere. And it's easy to animate too - you can translate the texture 
> in x/z to simulate wind and in y to make the clouds change their shape...

I have never found such a case. Planes will give extremely unrealistic 
horizon effects, simply because the horizon is an infinitely distant 
flat line. The real world is roughly spherical, and nested spheres model 
it much better than stacked planes.
Animation is no harder...you can use exactly the same translations, 
because the areas where the difference becomes noticeable are far below 
the horizon.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: <chr### [at] tagpovrayorg>
http://tag.povray.org/

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