[vtkusers] flickering when using Qt with VTK

[clinton at elemtech.com]

> From: "Anja Ende" <anja.ende at googlemail.com>
> Subject: [vtkusers] flickering when using Qt with VTK
>
> Hi everyone,
>
> I am drawing on top of the VTK window using the painter methods in Qt. The
> problem is that there is a lot of flickering during updates. So, I have
> points that I can drag on the screen and this action causes a lot of
> flicker.
>
> Following an earlier discussion, I turned off double buffering (I am using
> SuSE) by
>
> extern void qt_x11_set_global_double_buffer(bool);
> qt_x11_set_global_double_buffer(false);
>
> However, the flickering still persists. Has anyone else here successfully
> done this? How did they avoid this flickering problem.
>
> Cheers,
>
> Anja

Do you have a minimal example you can send me?

Clint