[Qt-interest] Problems using QGraphicsView with a QGLWidget - example fails to run

[Mathias Gottschlag]

On 30.10.2010 12:30, Mathias Gottschlag wrote:
> Hi,
>
> I am trying Qt for a 3D game (with QML for the GUI) but at the moment 
> face problems even setting up a simple 3D window. Basically I followed 
> the instructions in http://doc.trolltech.com/qq/qq26-openglcanvas.html 
> but only got the warning "OpenGLScene: drawBackground needs a 
> QGLWidget to be set as viewport on the graphics view".
>
> Thinking I might have made a mistake following the instructions I 
> downloaded the example files, compiled and tried to run them, but 
> ended up with exactly the same problem (no model in the demo was 
> shown, only the 2D user interface).
>
> Note that in both cases the QGraphicsView seems to draw garbage at the 
> edges of the widget, screenshot: 
> http://simplest-image-hosting.net/jpg-0-plasma-desktopah1912
>
> I use Ubuntu 10.10 with Qt 4.7.1 and the proprietary nvidia driver 
> installed, OpenGL works for everything else. Is there 
Correction: 4.7.0, only the snapshot of qt creator I am running showed 
4.7.1, sry.
> anything which could cause such problems then, and if so, where would 
> I have to look for a solution? Anyone already reported issues like 
> this? Google really did not help me much.
>
> Thanks in advance,
>
> Mathias Gottschlag