Re: [Interest] qml performance with Qt5.2 and Qt5.3

2014-06-27 Thread Gunnar Sletta
On 27 Jun 2014, at 12:10, Nancy Zou wrote: > Dear Gunnar & other friends: > > I think performance of qml scene graph in Qt5.3 is better than Qt5.2 because > I read some commits from the git 5.3 branch. I know the qml scene graph > update a lot after Qt5.2 release. Actually, it didn't change

Re: [Interest] qml performance with Qt5.2 and Qt5.3

2014-06-27 Thread Nancy Zou
Dear Gunnar & other friends: I think performance of qml scene graph in Qt5.3 is better than Qt5.2 because I read some commits from the git 5.3 branch. I know the qml scene graph update a lot after Qt5.2 release. But I find the performance of Qt5.3 is decrease compared with Qt5.2 when I do so

Re: [Interest] qml performance with Qt5.2

2014-06-26 Thread Nancy Zou
I get it. Thank you. -Original Message- From: Gunnar Sletta [mailto:gunnar.sle...@jolla.com] Sent: Thursday, June 26, 2014 6:20 PM To: Nancy Zou Cc: Gunnar Sletta; Interest@qt-project.org Subject: Re: [Interest] qml performance with Qt5.2 On 26 Jun 2014, at 11:36, Nancy Zou wrote

Re: [Interest] qml performance with Qt5.2

2014-06-26 Thread Gunnar Sletta
On 26 Jun 2014, at 11:36, Nancy Zou wrote: > Dear Gunnar & other friends: > > About atlas texture: > I print the atlas size in my system, QSG: texture atlas dimensions: 1024 x > 1024 > I use qml image item to load a jpeg image with size of 640*640, but I find > it isn't the atlas texture.

Re: [Interest] qml performance with Qt5.2

2014-06-26 Thread Nancy Zou
Dear Gunnar & other friends: About atlas texture: I print the atlas size in my system, QSG: texture atlas dimensions: 1024 x 1024 I use qml image item to load a jpeg image with size of 640*640, but I find it isn't the atlas texture. If a smaller image like 200*200, it can be the atlas textu

Re: [Interest] qml performance with Qt5.2

2014-06-25 Thread Gunnar Sletta
On 26 Jun 2014, at 06:03, Nancy Zou wrote: > Dear Gunnar & other friends: > > I have read the blog > http://qt-project.org/doc/qt-5/qtquick-visualcanvas-scenegraph-renderer.html > I have a few questions about section performance: > 1 Make sure the texture atlas is used. The Image and BorderIma

Re: [Interest] qml performance with Qt5.2

2014-06-25 Thread Nancy Zou
Dear Gunnar & other friends: I have read the blog http://qt-project.org/doc/qt-5/qtquick-visualcanvas-scenegraph-renderer.html I have a few questions about section performance: 1 Make sure the texture atlas is used. The Image and BorderImage items will use it unless the image is too large. if t

Re: [Interest] qml performance with Qt5.2

2014-06-16 Thread Gunnar Sletta
On 17 Jun 2014, at 04:14, Nancy Zou wrote: > Dear All > I know Qt5.2 have a big performance increase, but I don’t find my qml > application have some performance increase compared with Qt5.0. > I write some of my qml like that: > ... > Sometimes I want some item invisible, so I set opacity to 0

[Interest] qml performance with Qt5.2

2014-06-16 Thread Nancy Zou
Dear All I know Qt5.2 have a big performance increase, but I don't find my qml application have some performance increase compared with Qt5.0. I write some of my qml like that: Rectangle { id: rect width: 800 height: 480 color: "green" visible: true Text { color: "black" text: "a test" o