[Development] Accelerated/OpenGL drawing under Qt 5.0

[Chris Meyer]

On Tue, Sep 11, 2012 at 9:52 PM, Chris Meyer <cmeyer1969+qt at gmail.com> wrote:
> My software makes use of accelerated drawing using the techniques with
> QGraphicsView and QGraphicsScene shown in this article:
>
> http://doc.qt.nokia.com/qq/qq26-openglcanvas.html
>
> Unfortunately things don't work smoothly under Qt 5.0.
>
> Is this technique expected to work? If not, what is the suggested way
> to get accelerated drawing under Qt 5.0?
>
> Also, QGLPixelBuffer::hasOpenGLPbuffers() always returns false, where
> it returned it true under 4.8. Is this also expected?

As a further isolation of this problem... I'm finding that adding a
QGLWidget (not even customized) into my view hierarchy (QMainWindow ->
QWidget/QVBoxLayout -> QStackedWidget -> QWidget/QVBoxLayout ->
QGLWidget) makes bad things happen to layouts, displays and mouse
handling.

Anyone have success with QGLWidget in a complex hierarchy on Qt 5.0 /
Mac OS 10.8.1? Any known issues?

This issue looks similar, but I'm seeing it on the Mac:
https://bugreports.qt-project.org/browse/QTBUG-26826