qt-everywhere-src-5.15.1/qt3d/examples/qt3d/simplecustommaterial/qml.qrc

<RCC>
    <qresource prefix="/">
        <file>main.qml</file>
        <file>SceneRoot.qml</file>
        <file>SimpleMaterial.qml</file>
        <file>PlaneModel.qml</file>
    </qresource>
</RCC>