Hi, I had problems similar to what you describe https://bugreports.qt.io/browse/QTBUG-55093 in qt 5.7. I haven't check it on 5.8.
2016-10-26 16:37 GMT+03:00 Xavier Bigand <flamaros.xav...@gmail.com>: > Hi, > > I have to change to parent to nullptr to make some entities invisible, but > when I put them visible back I get a crash. > > The crash is a segfault in the method void > Entity::setNodeManagers(NodeManagers > *manager) because the this pointer is null. > > Here is the callstack : > Qt53DRenderd.dll!Qt3DRender::Render::Entity:: > setNodeManagers(Qt3DRender::Render::NodeManagers * manager) Line 140 C++ > Qt53DRenderd.dll!Qt3DRender::Render::RenderEntityFunctor::create(const > QSharedPointer<Qt3DCore::QNodeCreatedChangeBase> & change) Line 562 C++ > Qt53DCored.dll!Qt3DCore::QAbstractAspectPrivate::createBackendNode(const > QSharedPointer<Qt3DCore::QNodeCreatedChangeBase> & change) Line 198 C++ > Qt53DCored.dll!Qt3DCore::QAbstractAspectPrivate:: > sceneNodeAdded(QSharedPointer<Qt3DCore::QSceneChange> & change) Line 163 > C++ > Qt53DCored.dll!Qt3DCore::QChangeArbiter::distributeQueueChanges(std:: > vector<QSharedPointer<Qt3DCore::QSceneChange>,std:: > allocator<QSharedPointer<Qt3DCore::QSceneChange> > > * changeQueue) Line > 120 C++ > Qt53DCored.dll!Qt3DCore::QChangeArbiter::syncChanges() Line 180 C++ > Qt53DCored.dll!Qt3DCore::QAspectManager::exec() Line 282 C++ > Qt53DCored.dll!Qt3DCore::QAspectThread::run() Line 88 C++ > Qt5Cored.dll!QThreadPrivate::start(void * arg) Line 380 C++ > [External Code] > [Frames below may be incorrect and/or missing, no symbols loaded for > kernel32.dll] > > > > I am also curious to know what does the enable flag on QEntity, it seems > easier to use it to control the visibility of object and maybe faster. > > > PS: I am using the git branch 5.8 > > > -- > Xavier > > _______________________________________________ > Interest mailing list > Interest@qt-project.org > http://lists.qt-project.org/mailman/listinfo/interest > >
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