Oded wrote:
> 
> here is a source of an iso, when rendering i get the result attached to this
> message.
> i do not understand why I get a flat shape,
> probably there are problems calculating the normal
> Or maybe something else...
> If anyone knows what the problem might be...
> Ill be glad to thank him
>     thanks for reading
>         Oded
> 

I'm not sure what shape you wanted ;-), but how about:

        function {
                (-V1*x-V2*y)&
                (-V1*x+V2*y)&
                (V1*x-V2*y)&
                (V1*x+V2*y)&
                (-V1*y-V2*z)&
                (-V1*y+V2*z)&
                (V1*y-V2*z)&
                (V1*y+V2*z)&
                (-V1*z-V2*x)&
                (-V1*z+V2*x)&
                (V1*z-V2*x)&
                (V1*z+V2*x)
        }

leading to the attached shape.

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
Homepage: http://www.schunter.etc.tu-bs.de/~chris/

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