ABX,
Thanks for your reply. That animation is awesome. I forgot to include in my
first post the next line of the isosurface, which is:

isosurface {
   function { y -P (x,0,z).red*0.4}

If  I make P either P1 or P2 it will render, but not just P and the line you
showed me. I'm in over my head with this, so I'm either going to need expert
help or wait until I have enough experience to understand it better.
Steve


ABX <abx### [at] abxartpl> wrote in message
news:1j2g2vorak2gve9rrinj1d1ffu6hu4dlef@4ax.com...
> On Fri, 17 Jan 2003 08:57:17 -0500, "Steve Shelby" <ssh### [at] rexnetnet>
wrote:
> > #declare P1=function{pigment{leopard ...
> > #declare P2=function{pigment{leopard ...
>
> assuming clock goes from 0 to 1 it could be something like:
>
>   #declare P=function{(1-clock)*P1(x,y,z).gray+clock*P2(x,y,z).gray};
>
> such solution in extended form was used in:
>
> http://news.povray.org/povray.binaries.animations/23891/167475/wip.mpg
>
> ABX

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