On Tue, 6 Nov 2001 21:51:14 -0500, "Dennis Milller" <dhm### [at] mediaonenet>
wrote:

> Sorry, but this would not render for me. I got an error pointing to the
> line:
>
>  function{f_box(f_x(x,y,z),f_y(x,y,z),f_z(x,y,z))}
>
>
> Any ideas?

Function f_box() was used in original scene. I renamed this to f_part() within
main part of tutorial. Sorry.

ABX
--
#declare _=function(a,b,x){((a^2)+(b^2))^.5-x}#default {pigment{color rgb 1}}
union{plane{y,-3}plane{-x,-3}finish{reflection 1 ambient 0}}isosurface{ //ABX
function{_(x-2,y,1)|_((x+y)*.7,z,.1)|_((x+y+2)*.7,z,.1)|_(x/2+y*.8+1.5,z,.1)}
contained_by{box{<0,-3,-.1>,<3,0,.1>}}translate z*15finish{ambient 1}}//POV35

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