[vtkusers] Masked rendering with stencil?

[David Doria]

On Tue, Mar 23, 2010 at 6:32 AM, Giancarlo Amati
<ilferraresebono at hotmail.it> wrote:
> Hello Vtks :)
>
> this is my question: I would like to make a rendering window where I have a
> kind of Mask (see mask.jpg in attachment) which simulates the view through a
> tube/cannula/pipe. In the white are there will be the standard rendering,
> but how can I superimpose that mask?
>
> many thanks.
> GC.

Any thoughts on this?

Thanks,

David