segfault when adding material to entity with EntityLoader



  • trying to add a phong material to Qt3d entities loaded with a material. This modified CuboidEntity.qml from the loader example in qt3d causes a segfault:

    import Qt3D 2.0
    import Qt3D.Renderer 2.0

    Entity {
    components: [ mesh, material, transform ]

    CuboidMesh {
        id: mesh
        yzMeshResolution: Qt.size(2, 2)
        xzMeshResolution: Qt.size(2, 2)
        xyMeshResolution: Qt.size(2, 2)
    }
    
    PhongMaterial {
        id: material
    }
    
    
    Transform {
        id: transform
    
        Scale {
            scale: 3
        }
    }
    

    }

    Program received signal SIGSEGV, Segmentation fault.
    0x00007ffff7f2ed34 in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=0x8)
    at /home/user/qt5/qtbase/include/QtCore/../../src/corelib/tools/qscopedpointer.h:135
    135 return d;
    (gdb) bt
    #0 0x00007ffff7f2ed34 in QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> >::data (this=0x8)
    at /home/user/qt5/qtbase/include/QtCore/../../src/corelib/tools/qscopedpointer.h:135
    #1 0x00007ffff7f40391 in qGetPtrHelper<QScopedPointer<QObjectData> > (p=...)
    at /home/user/qt5/qtbase/include/QtCore/../../src/corelib/global/qglobal.h:983
    #2 0x00007ffff7f40664 in Qt3D::QNode::d_func (this=0x0) at nodes/qnode.h:101
    #3 0x00007ffff7f3f9e4 in Qt3D::QNode::id (this=0x0) at nodes/qnode.cpp:473
    #4 0x00007ffff7f3fc81 in Qt3D::QNode::clone (node=0x0) at nodes/qnode.cpp:565
    #5 0x00007ffff7c717d6 in Qt3D::QRenderPass::copy (this=0x55fc70, ref=0x554970)
    at frontend/qrenderpass.cpp:65
    #6 0x00007fffd05e2897 in Qt3D::QRenderPass::doClone (this=0x554970)
    at /home/user/qt5/qtbase/include/Qt3DRenderer/../../../qt3d/src/render/frontend/qrenderpass.h:103
    #7 0x00007ffff7f3fcbf in Qt3D::QNode::clone (node=0x554970)
    at nodes/qnode.cpp:567
    #8 0x00007ffff7c746d9 in Qt3D::QTechnique::copy (this=0x55fa20, ref=0x4509f0)
    at frontend/qtechnique.cpp:90
    #9 0x00007fffd05e2b8b in Qt3D::QTechnique::doClone (this=0x4509f0)
    at /home/user/qt5/qtbase/include/Qt3DRenderer/../../../qt3d/src/render/frontend/qtechnique.h:84
    #10 0x00007ffff7f3fcbf in Qt3D::QNode::clone (node=0x4509f0)


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