Tim Nikias nous apporta ses lumieres ainsi en ce 11-09-2004 07:13... :

>So, I've updated the desert backdrop for my IRTC entry with a couple of
>clouds. Instead of using media (which might behave unpredictable with
>additional lightsources and requires quiet some time to render with decent
>settings), I've just placed a few spheres to surround the
>desert-heightfield. They get a nicely turbulenced bozo texture, each sphere
>is a little different in size and their texture is translated a little as
>well. Those that know the stacked-planes technique know that I've just done
>that with spheres.
>
>And, believe it or not, 5 spheres are quiet sufficient for this!
>
>Anyways, the animation just depicts a little cloud-movement. You'll notice
>the side-effects of using stacked-planes on spheres: the texture warps
>around the hull of the sphere and thus, clouds dissipate and gather in a
>slighty obvious matter. But they aren't meant to be animated in the entry
>anyway, so that's not too big of a problem.
>
>Regards,
>Tim
>
>  
>
I like the natural way the clouds gather and dissipate. Real clouds 
alway do that, just slower.

Alain

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