> I can testify. > Same animations and transformations done with QML, with OpenGL-enabled > QGraphicsView go MUCH FASTER (particularly on Device).
If your application is a full-screen one and you run it with the qmlviewer, then make sure you specify the -frameless flag (in addition to the -fullscreen). This makes a huge difference to performance when running on N900. Cheers Mathias ________________________________________ From: [email protected] [[email protected]] On Behalf Of ext Ivan De Marino [[email protected]] Sent: Friday, June 25, 2010 2:17 PM To: Allison Warwick (Nokia-D-Qt/Brisbane) Cc: [email protected] Subject: Re: [Qt-qml] hardware acceleration and qml I can testify. Same animations and transformations done with QML, with OpenGL-enabled QGraphicsView go MUCH FASTER (particularly on Device). But there are few drawbacks: - You need to have the entire View redrawn entirely for good quality (but that's ok: you are using OpenGL after all) - Font Anti-aliasing sucks and gets worse if you apply transformations to the Text On 23 June 2010 00:52, <[email protected]<mailto:[email protected]>> wrote: > I'd like to know more about the support for hardware acceleration in > qml. I remember an overview focused on it but in the last snapshot > documentation I can't find it. Is there a reason? Where I can find the > supported platforms? QML builds directly upon QGraphicsView, which in turn builds upon QPainter, which in turn builds upon QPaintEngine (and the internal QGraphicsSystem classes), which have various hardware accelerated implementations. -- Warwick _______________________________________________ Qt-qml mailing list [email protected]<mailto:[email protected]> http://lists.trolltech.com/mailman/listinfo/qt-qml -- Ivan De Marino | Software Engineer | France Telecom R&D UK - Orange Labs w. +44 20 8849 5806 | m. +44 7515 955 861 | m. +44 7974 156 216 ivan[dot]demarino[at]orange-ftgroup.com<http://orange-ftgroup.com> | ivan[dot]de[dot]marino[at]gmail[dot]com www.detronizator.org<http://www.detronizator.org> | www.linkedin.com/in/ivandemarino<http://www.linkedin.com/in/ivandemarino> _______________________________________________ Qt-qml mailing list [email protected] http://lists.trolltech.com/mailman/listinfo/qt-qml
