[Qt-interest] Performance issues with Graphics View Framework

[Alexis Menard]

And sometimes it is faster to set the viewport update mode to  
FullUpdate in OpenGl.

On Jul 20, 2009, at 12:48, Srdjan Todorovic wrote:

> Hi,
>
> On 20/07/2009, Simone Artesino <mlist.sa at gmail.com> wrote:
>> I've got a terrible performance degradation when switch Viewport from
>> QWidget to QGLWidget. The same qt code (no opengl calls in it) that  
>> make a
>> simple animation, it runs 10 times slower (from 40 fps to 4 fps).  
>> On the
>
> Are you running OpenGL in software-only mode?
> I know from playing games in Linux, that if you do not have hardware
> accelerated OpenGL, things are very very slow.
>
> Hope that helps,
> Srdjan
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