David Buck skribis:
> Is there a better more modern way to create spectacular clouds?  Many of
> the clouds I'm seeing seem to go beyond the simple texturing technique I
> used to use.

Project Tierra, an automated landscape generation macro by Jaime Vives Piqueres
has the most beautiful clouds I've ever seen in POV-ray. It contains macros for
both cumulus and cirrus clouds, and the basic technique for creating one cloud
is this (if I read the code correctly).

1. Creating a union of spheres randomly jittered about a central point.
2. Using this union object as a pigment function. (Inside = 1, outside = 0)
3. Adding some turbulence for fluffiness.
4. Using the resulting function as a density function for a scattering medium.

See for yourself at:

http://www.ignorancia.org/en/index.php?page=Project_Tierra

Personally, I like this macro so much I want to have sex with it.

Hymyly.
And there was light.

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