Christian Froeschlin <chr### [at] chrfrde> wrote:
> TheMightyZog wrote:
>
> > The following is a U shaped pipe and I would like the inside to be White and
> > the outside Yellow.  How can I do it?
>
> Model the geometry both for the inside and the outside (your
> pipe is bound to have some physical thickness), and make the
> actual object the "difference" of outside - inside. To avoid
> numeric problems (coincident surfaces), the "inside" pipe
> should a bit longer than the "outside" pipe.
>
> Depending on your geometry, you can often get away with using
> a scaled down copy of the outer shape for the inner shape.

You forgot to say that the outside should have one texture and the object
that you are differencing it with, should have another texture.


Stephen

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