qml 3d场景加载的两种方式

//main.cpp

#include <Qt3DQuickExtras/qt3dquickwindow.h>
#include <QGuiApplication>
#include <QQuickView>

int main(int argc, char* argv[])
{
    QGuiApplication app(argc, argv);

   // Qt3DExtras::Quick::Qt3DQuickWindow view;  //3D视图场景，用此场景不需要Scene3D控件

    QQuickView view; //普通2D视图
    view.setSource(QUrl("../main.qml"));
    view.show();

    return app.exec();
}#include <Qt3DQuickExtras/q