_
>> From: Damian Ivanov
>> To: Jason H
>> Cc: Willem Bennekom ; ""
>>
>> Sent: Sunday, March 23, 2014 1:44 PM
>>
>> Subject: Re: [Interest] Input Latency Issues in QtQuick
>>
>> go to one corner and move the mouse
an
Harmer [sean.har...@kdab.com]
Sent: Monday, March 24, 2014 10:02 AM
To: interest@qt-project.org
Subject: Re: [Interest] Input Latency Issues in QtQuick
Hi Damian,
On Monday 24 March 2014 07:42:43 Damian Ivanov wrote:
> Hmm 2 options Jason:
> a) You are not affected by the bug but are uneducated abo
> > Cc: Willem Bennekom ; ""
> >
> > Sent: Sunday, March 23, 2014 1:44 PM
> >
> > Subject: Re: [Interest] Input Latency Issues in QtQuick
> >
> > go to one corner and move the mouse cursor fast diagonal to the other
> > corner. you will se
:
> Yeap, I did that. No delay.
>
> Perhaps you need a faster computer?
>
>
>
> From: Damian Ivanov
> To: Jason H
> Cc: Willem Bennekom ; ""
>
> Sent: Sunday, March 23, 2014 1:44 PM
>
> Subject: Re: [Interest] Inp
Yeap, I did that. No delay.
Perhaps you need a faster computer?
From: Damian Ivanov
To: Jason H
Cc: Willem Bennekom ; ""
Sent: Sunday, March 23, 2014 1:44 PM
Subject: Re: [Interest] Input Latency Issues in QtQuick
go to one corner and move
op Mint 16/64bit
>
>
> From: Damian Ivanov
> To: Willem Bennekom
> Cc: ""
> Sent: Saturday, March 22, 2014 6:28 PM
> Subject: Re: [Interest] Input Latency Issues in QtQuick
>
> hmm I can confirm the problem with the test case, depe
I don't have a problem with the test case.
AMD A6 Laptop Mint 16/64bit
From: Damian Ivanov
To: Willem Bennekom
Cc: ""
Sent: Saturday, March 22, 2014 6:28 PM
Subject: Re: [Interest] Input Latency Issues in QtQuick
hmm I can confirm the p
hmm I can confirm the problem with the test case, depending on what
application you have this can be from absolutely not important to
quite a deal-breaker...
I would fill a bug.
2014-03-22 23:09 GMT+02:00 Willem Bennekom :
> For me, the lagging is clearly noticeable on all platforms where vsync is
For me, the lagging is clearly noticeable on all platforms where vsync is
enabled.
(Macbook Pro (Nvidia), Linux/Windows Desktop with Nvidia, Windows Desktop
with AMD + Angle.
It hapopens with all Qt Quick versions.)
Here's a minimal test scene (rectangle follows mouse):
http://pastie.org/pastes/89
for the record: I can't confirm this, QML input is instantly here free
radeon driver (5series) on openSUSE 13.1 64bit.
2014-03-22 15:46 GMT+01:00 Willem Bennekom :
> With its current architecture, QtQuick has input latency issues:
> The scene reacts to user input with a slight, but noticeable dela
With its current architecture, QtQuick has input latency issues:
The scene reacts to user input with a slight, but noticeable delay, which
makes
QtQuick apps feel clumsy and unpleasant to use.
I guess this is related to vsync handling, where input events don't
immediately
trigger a repaint while t
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