Comment 17 for bug 981199

We are facing known issues here using opengl in separate viewports with rendering update triggered by Qt event loop.
Please stop saying it's a context sharing issue because waveform widgets are already sharing context.
Like Qt dev team is doing, we need to make bigger commitment like "going full opengl" to be able to take advantage of hardware acceleration and completely rethink how waveform and the complete GUI is rendered. We will do it anyway sooner or later when we gonna port mixxx to Qt5 ...

Smooth animation in Qt is an active research project, please see some recent dev blog about it :
http://labs.qt.nokia.com/2012/08/20/render-thread-animations-in-qt-quick-2-0/
http://labs.qt.nokia.com/2012/08/01/scene-graph-adaptation-layer/
http://labs.qt.nokia.com/2010/12/02/velvet-and-the-qml-scene-graph/