Cousin Ricky <ric### [at] yahoocom> wrote:
> On 2015-07-29 11:36 PM (-4), bakom wrote:
> > #macro Pipe(p1, p2, r1, r2, r3, r4)
> >    difference
> >    {
> >      cone {p1, r1, p2, r3 hollow on}
> >      cone {p1, r2, p2, r4 } hollow off
> >     texture{ pigment{ rgb 0.9}}
> >    }
> > #end
>
> First of all, the hollow keyword is totally irrelevant to your problem.
>   The hollow keyword is for allowing media inside transparent objects,
> not for making hollow shapes.
>
> At first glance, it appears your problem is coincident surfaces.  The
> ends of the inner pipe are in exactly the same planes as the ends of the
> outer pipe.
>
>
http://wiki.povray.org/content/Documentation:Tutorial_Section_2.1#Co-incident_Surfaces

Thanks for reply also to Le Forgeron.
Ok, so can you please rewrite or gave me a macro for it?


--
Gurwinder Singh

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