Marc-Hendrik Bremer <Mar### [at] t-onlinede> wrote:

> I don't want to compete with this one, but a spiral pigment function
> combined with the inside of a cone might also help. I just tried to force
> the build-in function helix2 to a cone shape but the necessary gradient
> and/or accuracy was far to much to give working results.

Well, Ken's vortex works pretty well when combined with the ridged MF that
I'm using for the basic water.  However, I'm having a little bit of a
problem controlling it.  Which numbers to change to get certain effects is
not really clear.  I'm getting the hang of it slowly, but...


Geoff

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