"Pablo" <Pab### [at] gmailcom> wrote:
> Hi everyone, i'm Pablo, first-year engineer design student and I have to make up
> this product on pov ray. How would you make it? Sphere_sweep? It doesnt look so
> realistic:(


I'd say that the central portion ought to be an isosurface with a spherical
equation modified with a sine wave, then asymmetrically scaled (see "Non-linear
scale").

See the Insert Menu, under Special Shapes, Isosurfaces by basic function,
Isosurface sin sphere .
Then scale it:
http://www.econym.demon.co.uk/isotut/substitute.htm

Then add sphere-sweep legs, or an isosurface equivalent.

http://www.econym.demon.co.uk/isotut/more.htm#spline
http://www.econym.demon.co.uk/isotut/splines.htm

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