[vtk-developers] Update only one renderer, (multiple renderers in a render window)

[David Gobbi]

Hi Jinhyeok,

It should be possible to do this by calling the methods EraseOff()
and DrawOff() on all the renders that you don't want to re-render.

 - David

On Mon, Oct 20, 2014 at 6:54 AM, Jinhyeok Choi <andreas.choi at gmail.com> wrote:
> Hi,
>
> I have a question for redrawing a render window.
> I only know the method to redraw is
> vtkRenderWindow::render();
> but it redraw all renderers at once.
> I want to redraw only one renderer or only one actor.
> Is it possible?
> I divide viewport in the render window for each renderer.
> One for volume rendering, and the other is something working space.
> I want to redraw only working space, because volume rendering is heavy.
>
> I looking forward your helps.
>
> Best regards,
> Jinhyeok Choi