[vtkusers] multiple actor/renderer pairs connectable to single mapper?

[John Biddiscombe]

> I am plannig to use MFC with VTK, and I am wondering whether it is
*correct*
> to have multiple actors that belong to different renderwindows  added to a
> single mapper.

No. Not correct. Each Renderwindow will have a different OpenGL context. The
mapper will create displaylists and the rest which will cause problems.

> >The safest thing to do is to use a separate mapper/actor/texture for each
> render window.  The
> >mappers/actors/textures don't store too much information themselves (the
> data is kept in the data
> >set), so there is not too much overhead involved.
>
> Is this still true, or have things changed in vtk 4.0 times?

Still true

>
> If I need to have mapper/actor/renderwindow aggregates may I connect
> multiple mappers to a single dataset?

Yes.

JB