In article <402b0c92@news.povray.org>,
 "Maurya Shah" <mau### [at] hotmailcom> wrote:

> I tried to review some literature about Perlin noise and it seems that if
> the noise has to varied smoothly both in space and time then I feel the use
> of advected textures is the only way out.

This is not so. There is a 4D variant of Perlin noise which does exactly 
that, varying in time as it varies along x, y, and z. In fact, Perlin 
noise can be extended to any number of dimensions, though I doubt more 
than 4 is very useful. Ah, SlimePOV has an implementation:
http://www.slimeland.com/slimepov/

-- 
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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