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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