"Tek" wrote in message:

 > That reminds me of an animation I did of cones moving according to pov's
 > vturbulence() function,

I think I might have seen that.  At least something like it.  It's a cool
idea.

> Anyway, your animation's very nice.

Thanks

> I suggest trying some more complicated
> functions.

I surely will

> BTW, how does it decide what colour to use?

here's how:
...
  #declare theta = atan(y_prime/x_prime);
  #declare rot = degrees(theta);
  #declare col = rot/90;
...
pigment{ rgb <.75+col,.4,.75-col> }
...


-Ben Scheele

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