[Interest] Reduce maximum frame rate with Qt5.3 beta

[Agocs Laszlo]

See QSurfaceFormat::swapInterval(). 5.3 defaults to 1 on Windows too, unlike 5.2 and earlier that did not request any particular value.

As pointed out, this makes sense since this is what apps usually want and is in line with what we do on other platforms.


Laszlo
________________________________
Fra: Thiago Macieira<mailto:thiago.macieira at intel.com>
Sendt: ‎19.‎04.‎2014 19:00
Til: interest at qt-project.org<mailto:interest at 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,
>
> 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 screen can display a maximum of 60 frames per second. Why
render more frames if they can't be displayed?

--
Thiago Macieira - thiago.macieira (AT) intel.com
  Software Architect - Intel Open Source Technology Center

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