- Qt 6.5
- Qt Quick 3D
- Qt Quick 3D Examples and Tutorials
- Qt Quick 3D - RuntimeLoader Example
- Qt Quick 3D | Commercial or GPLv3

# Qt Quick 3D - RuntimeLoader Example

     // Copyright (C) 2021 The Qt Company Ltd.
     // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
     #ifdef HAS_MODULE_QT_WIDGETS
     # include <QApplication>
     #endif
     #include <QGuiApplication>
     #include <QQmlApplicationEngine>
     #include <QQuickWindow>
     #include <QtQuick3D/qquick3d.h>

     int main(int argc, char *argv[])
     {
     #ifdef HAS_MODULE_QT_WIDGETS
         QApplication app(argc, argv);
     #else
         QGuiApplication app(argc, argv);
     #endif
         app.setOrganizationName("The Qt Company");
         app.setOrganizationDomain("qt.io");
         app.setApplicationName("Runtime Asset Loading Example");

         const auto importUrl = argc > 1 ? QUrl::fromLocalFile(argv[1]) : QUrl{};
         if (importUrl.isValid())
             qDebug() << "Importing" << importUrl;

         QSurfaceFormat::setDefaultFormat(QQuick3D::idealSurfaceFormat(4));

         QQmlApplicationEngine engine;
         const QUrl url(QStringLiteral("qrc:/main.qml"));
         engine.load(url);

         if (engine.rootObjects().isEmpty()) {
             qWarning() << "Could not find root object in" << url;
             return -1;
         }

         QObject *topLevel = engine.rootObjects().value(0);
         QQuickWindow *window = qobject_cast<QQuickWindow *>(topLevel);

         if (window)
             window->setProperty("importUrl", importUrl);

         return app.exec();
     }