Modified might be updating the pipeline, but the changes are not shown on the screen. I have to move the viewpoint around a bit to force a render. Is modified supposed to cause the renderwindow to re-render (if so is there a setting somewhere I'm missing)?
Thanks,
Geoff
Randall Hand wrote:
> You can also call "->Modified()" on the sphere object once you've modified it.. that *should* force a pipeline update, I think.
>
> On 5/27/06, *Geoff Smith * <exine at gmx.net <mailto:exine at gmx.net>> wrote:
>
> Hi!
>
> I'm having some very confusing problems. I'm trying to move a
> sphere around with a haptic feedback device and am getting the 3D
> coordinates into my program no problem. I then update the sphere
> centre with these cordinates. Now this is where it gets weird, if
> i don't attempt to call render() on the renderwindow nothing
> changes in the window until i move the scene around a little with
> the mouse. Then the scene is update and the sphere is moved as
> expected. Now I want to see the movement in real time, so i have a
> callback which goes back to the class with the renderwindow and
> render etc. This callback calls render() on the render window.
> After this the sphere dissapears from the scene. I've checked the
> sphere centre and it is normal - so it hasn't actually left the
> scene. Nothing else is being touched, i.e. the actor, mapper, etc.
> The other objects in the scene are still shown as normal. I can't
> seem to find out why it's disappearing...
>
> Is this the best way to force the window to render or is there a
> better way? Does anyone have any suggestions?
>
> Cheers,
>
> Geoff
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