Am 13.07.14 15:47, schrieb Till Oliver Knoll: > Hi, > > anyone else noticed that the performance is terrible when resizing the > window of the "OpenGL Window Example"?
A quick experiment confirmed my suspicion that it must have anything to do with the "animation triggering": when in main.cpp I setwindow.setAnimating(false); then the resizing is smooth. Off course the triangle does not rotate (funnily it does while resizing the window ;)). As the animation basically posts an update request in OpenGLWindow::renderLater: QCoreApplication::postEvent(this, new QEvent(QEvent::UpdateRequest)); and also keeps track of "pending updates" with a member variable (m_update_pending) this must somehow interfere (at least on OS X) with the "resize events" sent by the OS. So far my quick'n'dirty analysis and educated guesswork... Cheers, Oliver _______________________________________________ Interest mailing list Interest@qt-project.org http://lists.qt-project.org/mailman/listinfo/interest
