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On Thu, 10 Jun 1999 17:34:53 GMT, Peter Popov wrote:
>On Fri, 28 May 1999 23:29:56 -0300, Simon de Vet <sde### [at] istar ca>
>wrote:
>
>>The Ridged Multifractal is found in a bunch of proggies, mostly HF
>>editors (Leveller, Wilbur, probably others).
><snip>
>>Any chance of seeing a patch with this as a pigment type (or any of the
>>other multifractal thingies)? Would be very handy....
>>
>>Simon
>>http://home.istar.ca/~sdevet
>
>Where can I find info on these multifractal thingies?
I forgot about this. The new superpatch (don't download it yet -
it has bugs) contains a library called i_fract, contributed by
Hans-Detlev Fink, that implements ridged multifractals for use with
isosurfaces. The function name is "RidgedMultifractal" and the
parameters are as follows:
* P0 : H
* P1 : lacunarity
* P2 : octaves
* P3 : offset
* P4 : gain
Ridged Multifractals were apparently created by F. Kenton Musgrave,
but his web page at GWU has gone offline permanently and I can't
find a replacement for it.
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