Hello Fabrizio,
Fabrizio Milo aka misto wrote:
> I am playing around with Qt4 and OpenSG
>
> basically I am following the Tutorial but using the Qt4 GLWidget
>
> Seems that the OpenSG Qt4 native on MacOs is not enabled (why?),
I think Gerrit disabled it recently because it would not compile.
On as side note: on linux there is also something weird happening,
during the week I tried and could not even get a trivial example (just
an app, mainwindow and a button) to run, it crashed in the QApplication
constructor) when compiled as part of the OpenSG build. I'm going to
look into this some more over the weekend, but I don't have access to a
OS X system, so I'm not sure what the build there problem was.
> So I am trying to experiment following the testPassiveQt4 example in
> OSG QT4 directory
>
> Everything works fine, but when I close the application I get this error:
>
> LOG: GL Vendor/Renderer: NVIDIA Corporation/NVIDIA GeForce 9400M OpenGL Engine
> WARNING: FieldContainerFactoryBase::terminate: Entry [248] is not NULL
> ([0x50e06f0]).
> WARNING: [0] [0x50e1860] [TextureEnvChunk] [1 0]
these are indeed only warnings, they indicate that there are OpenSG
objects alive when osgExit() runs (it is registered as an atexit handler
by osgInit(), so it also runs if the application does not call it
explicitly).
You can get rid of the warnings by making sure that you destroy all
OpenSG objects before calling osgExit(). You could also just ignore
them, but if you run your program with some memory leak detector (e.g.
valgrind/memcheck) it will probably complain about the same objects.
Cheers,
Carsten
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