specify default surface format and enable multisample rendering

CMakeLists.txt

@@ -24,8 +24,8 @@ set(CMAKE_CXX_STANDARD_REQUIRED ON)
 #    endif()
 #endif()
 
-find_package(QT NAMES Qt6 Qt5 COMPONENTS Core Quick REQUIRED)
-find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Core Quick REQUIRED)
+find_package(QT NAMES Qt6 Qt5 COMPONENTS Core Quick Quick3D REQUIRED)
+find_package(Qt${QT_VERSION_MAJOR} COMPONENTS Core Quick Quick3D REQUIRED)
 
 set(PROJECT_SOURCES
         main.cpp
@@ -51,4 +51,4 @@ endif()
 target_compile_definitions(quick3d-item-fbo
   PRIVATE $<$<OR:$<CONFIG:Debug>,$<CONFIG:RelWithDebInfo>>:QT_QML_DEBUG>)
 target_link_libraries(quick3d-item-fbo
-  PRIVATE Qt${QT_VERSION_MAJOR}::Core Qt${QT_VERSION_MAJOR}::Quick)
+  PRIVATE Qt${QT_VERSION_MAJOR}::Core Qt${QT_VERSION_MAJOR}::Quick Qt${QT_VERSION_MAJOR}::Quick3D)

main.cpp

 #include <QGuiApplication>
 #include <QQmlApplicationEngine>
+#include <QQuick3D>
+#include <QSurfaceFormat>
 
 int main(int argc, char *argv[])
 {
@@ -9,6 +11,8 @@ int main(int argc, char *argv[])
 
     QGuiApplication app(argc, argv);
 
+    QSurfaceFormat::setDefaultFormat(QQuick3D::idealSurfaceFormat(4));
+
     QQmlApplicationEngine engine;
     const QUrl url(QStringLiteral("qrc:/main.qml"));
     QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,