Thanks for the info. Is it possible to use the development version of Qt3D at the current time? I’ll probably do without widget overlaying for now, but I really do need the functionality of the library because with my current time frame I won’t be able to re-write all those bits and pieces on my own from scratch.
Thanks, Jonathan On 22 Nov 2014, at 19:14, Sean Harmer <sean.har...@kdab.com> wrote: > On 20/11/2014 16:32, Jonathan Poncelet wrote: >> Hi all, >> >> I’m attempting to use the QGLPainter from Qt3D with Qt 5.4’s new >> QOpenGLWidget - I was originally making do with QGLWidget from the previous >> Qt version but I was running into trouble with putting widgets, buttons, >> etc. on top of the GL widget, which is something I need to do. I’m fairly >> familiar with the Qt3D library but not so much on the in-depth side, and >> right now if I call begin() on a QGLPainter I create in the QOpenGLWidget’s >> paintGL() function, I get the following messages output before the program >> crashes: >> >> Attempt to cast non-window surface >> Attempt to activate GL window surface on bad context >> >> I’ve tried various things - calling begin() and passing the widget’s GL >> context doesn’t have any effect, and the function won’t accept the context's >> QSurface as it’s expecting a QGLSurface. Is there any way to get QGLPainter >> working with the new QOpenGLWidget, or will I have to stick with >> QGLWidget? > The old Qt3D is no longer being developed or maintained so please do not use > it. We are busy rewriting Qt3D but in it's current state it is not possible > to overlay widgets over a Qt3D window. This is in the feature roadmap however. > > It sounds like you just need to use QOpenGLWidget which allows compositing > widgets on top of the contained OpenGL content. Alternatively if you want to > overlay Qt Quick 2 UI on top of GL you can use the > QQuickWindow::beforeRendering() signal. See the openglunderqml example to see > how to do this. > > Cheers, > > Sean > > -- > Dr Sean Harmer | sean.har...@kdab.com | Managing Director UK > Klarälvdalens Datakonsult AB, a KDAB Group company > Tel. Sweden (HQ) +46-563-540090, USA +1-866-777-KDAB(5322) > KDAB - Qt Experts - Platform-independent software solutions > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest
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