Hello,
Thanks for all explanations, I was able to use QSurfaceFormat
swapInterval and get the Qt5.2 behaviour back.
So what i can see, on Windows platform, is when using vsync and moving
the window around the desktop the application lags.
If i set swapinterval to 0, and get higher frames rates,
On Sunday 20 April 2014 02:50:50 Joshua Kolden wrote:
> On Apr 20, 2014, at 1:39 AM, Sean Harmer wrote:
> > The swapInterval() mentioned by Laszlo combined with this controls the
> > refresh rate in the common case.
> >
> > Setting swapInterval to:
> >
> > * 1 enforces vsync
> > * 0 turns vsync
On Saturday 19 April 2014 23:58:42 Joshua Kolden wrote:
> A 60hz refresh rate is very common, but it is by no means the only sync
> rate in use.
Of course. That's why the QPA architecture abstracts this via the
QPlatformScreen::refeshRate() function. Each platform can use this to return
the r
A 60hz refresh rate is very common, but it is by no means the only sync rate
in use. I would hope that qt does noting to limit frame rate! Only the user or
os/display driver know if frame rate should be bound to the display refresh
(“vertical sync”) AND if the refresh rate is 60hz or something
Fra: Thiago Macieira<mailto:thiago.macie...@intel.com>
Sendt: 19.04.2014 19:00
Til: interest@qt-project.org<mailto:interest@qt-project.org>
Emne: Re: [Interest] Reduce maximum frame rate with Qt5.3 beta
Em sáb 19 abr 2014, às 13:20:11, Stéphane Fabry escreveu:
> Hello,
>
Em sáb 19 abr 2014, às 13:20:11, Stéphane Fabry escreveu:
> Hello,
>
> I saw something strange, if you try a simple QtQuick application with Qt
> 5.3 and measure the fps, it seems now limited to 60fps where i could
> reach > 200fps with Qt5.2
> Is it normal and if yes why ?
It's normal. Your scre
Hello,
I saw something strange, if you try a simple QtQuick application with Qt
5.3 and measure the fps, it seems now limited to 60fps where i could
reach > 200fps with Qt5.2
Is it normal and if yes why ?
Further I have my QtQuick application (4-5 tabs filled with qtquick
controls) that lags
