On 09/12/2012 04:33 PM, ext Chris Meyer wrote: > On Tue, Sep 11, 2012 at 9:52 PM, Chris Meyer <[email protected]> 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?
It should still work, though there could still be bugs at this stage. >> Also, QGLPixelBuffer::hasOpenGLPbuffers() always returns false, where >> it returned it true under 4.8. Is this also expected? Hmm, I see that for now the QGLPixelBuffer implementation is stubbed out in Qt 5. I'd recommend using QOpenGLFramebufferObject instead, as pixel buffers are a pretty deprecated way of doing offscreen rendering with OpenGL these days. > 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 I'd suggest you create a separate task for it, with a simplified example. -- Samuel _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
