[vtkusers] Quick, selective rendering

[Scott J. Pearson]

I am trying to move a point by changing its coordinates every 1/20 sec. and
re-rendering. The problem is that re-rendering takes too much time and slows
down my system considerably.

Is there a way to selectively Render an actor?

I see that vtk4.4 supports multiple Renderers, but my reading of the source
code makes me think that each Renderer is rerendered in RenWin->Render().

Scott