[Interest] [Qt3D] Crash when trying to update a geometry

[Sean Harmer]

Hi,

this may well be a bug. Please file a JIRA for it.

Cheers,

Sean

On 27/03/2016 23:43, Xavier Bigand wrote:
> No I didn't but I will. Like you thought it's not an easy change 
> because we still fix/update our engine, for the moment qt3d is a long 
> term project and I have to do modifications with care to be able to 
> merge them on my qt3d branch.
>
> Removing those lines is one of things that made us choosing qt3d to 
> replace our 3D engine, that can be hard to keep sync with Qt updates 
> (that we use for QML right now).
>
> Thank you for your help.
>
> 2016-03-28 0:13 GMT+02:00 Adrián Chaves Fernández 
> <adriyetichaves at gmail.com <mailto:adriyetichaves at gmail.com>>:
>
>     From someone who has no idea: Have you tried commenting out those
>     lines to find out whether that is the reason or not? (Unless, of
>     course, other code of yours will fail if you do)
>
>     2016-03-26 23:50 GMT+01:00 Xavier Bigand
>     <flamaros.xavier at gmail.com <mailto:flamaros.xavier at gmail.com>>:
>
>         May it come from the fact that we force Qt to use OpenGL and
>         remove multi-threaded scene graph?
>
>         qputenv("QML_FORCE_THREADED_RENDERER","0");
>
>         qputenv("QML_BAD_GUI_RENDER_LOOP","1");
>
>         qputenv("QSG_RENDER_LOOP","basic");
>
>         QGuiApplication::setAttribute(Qt::AA_UseDesktopOpenGL,true);
>
>
>         2016-03-26 23:39 GMT+01:00 Xavier Bigand
>         <flamaros.xavier at gmail.com <mailto:flamaros.xavier at gmail.com>>:
>
>             I am getting curious errors in the console :
>
>             ASSERT failure in QVector<T>::at: "index out of range",
>             file c:\Users\qt\work\install\include/QtCore/qvector.h,
>             line 419
>
>             ASSERT failure in QVector<T>::at: "index out of range",
>             file c:\Users\qt\work\install\include/QtCore/qvector.h,
>             line 419
>
>             ASSERT failure in QVector<T>::at: "index out of range",
>             file c:\Users\qt\work\install\include/QtCore/qvector.h,
>             line 419
>
>             ASSERT failure in QVector<T>::at: "index out of range",
>             file c:\Users\qt\work\install\include/QtCore/qvector.h,
>             line 419
>
>             Invalid parameter passed to C runtime function.
>
>             Invalid parameter passed to C runtime function.
>
>             Invalid parameter passed to C runtime function.
>
>             Invalid parameter passed to C runtime function.
>
>             Invalid parameter passed to C runtime function.
>
>             Invalid parameter passed to C runtime function.
>
>             Invalid parameter passed to C runtime function.
>
>             Invalid parameter passed to C runtime function.
>
>
>
>
>
>             2016-03-26 23:07 GMT+01:00 Xavier Bigand
>             <flamaros.xavier at gmail.com
>             <mailto:flamaros.xavier at gmail.com>>:
>
>                 Hi,
>
>                 I am creating a mesh empty and try to update it later,
>                 I don't understand why it crash.
>
>                 The crash happens in Qt3DCore::QBackendNode.
>
>                 I update the mesh by calling setData on the
>                 vertexBuffer and setCount on the corresponding
>                 attributs. I do the same for the indexBuffer.
>
>                 May I do something wrong?
>
>
>                 -- 
>                 Xavier
>
>
>
>
>             -- 
>             Xavier
>
>
>
>
>         -- 
>         Xavier
>
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>
>
>
>
>
> -- 
> Xavier
>
>
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