I have some shapes

#declare f_parabola=function(x,y,a){
                  y-a*x*x
                 }

parabola.
and its modify..

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different coefficients

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spin to a circle


#declare f_ =
function(x, y, z) {
pow(f_parabola(sqrt(x*x + z*z), y, 1), 2) + 0.6*y*y - 0.01
}


isosurface{...}

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spin another axes


#declare f_tee =
function(x, y, z) {
pow(f_parabola(x, y, 1), 2) + 0.6*y*y + 1.2*z*z - 0.01
}


 isosurface{...}

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On 02/13/2018 03:06 AM, And wrote:
> spin another axes
> 
> 
> #declare f_tee =
> function(x, y, z) {
> pow(f_parabola(x, y, 1), 2) + 0.6*y*y + 1.2*z*z - 0.01
> }
> 
> 
>   isosurface{...}
> 
Neat! Thanks for posting.

Bill P.

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William F Pokorny <ano### [at] anonymousorg> wrote:
> On 02/13/2018 03:06 AM, And wrote:
> > spin another axes
> >
> >
> > #declare f_tee =
> > function(x, y, z) {
> > pow(f_parabola(x, y, 1), 2) + 0.6*y*y + 1.2*z*z - 0.01
> > }
> >
> >
> >   isosurface{...}
> >
> Neat! Thanks for posting.
>
> Bill P.

Like.

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