main.cpp Example File

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  #include <QGuiApplication>

  #include <Qt3DCore/QEntity>
  #include <Qt3DRender/QCamera>
  #include <Qt3DRender/QCameraLens>
  #include <Qt3DCore/QTransform>
  #include <Qt3DCore/QAspectEngine>

  #include <Qt3DInput/QInputAspect>

  #include <Qt3DRender/QRenderAspect>
  #include <Qt3DExtras/QForwardRenderer>
  #include <Qt3DExtras/QPhongMaterial>
  #include <Qt3DExtras/QCylinderMesh>
  #include <Qt3DExtras/QSphereMesh>
  #include <Qt3DExtras/QTorusMesh>

  #include <QPropertyAnimation>

  #include "qt3dwindow.h"
  #include "orbittransformcontroller.h"
  #include "qorbitcameracontroller.h"

  Qt3DCore::QEntity *createScene()
  {
      // Root entity
      Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity;

      // Material
      Qt3DRender::QMaterial *material = new Qt3DExtras::QPhongMaterial(rootEntity);

      // Torus
      Qt3DCore::QEntity *torusEntity = new Qt3DCore::QEntity(rootEntity);
      Qt3DExtras::QTorusMesh *torusMesh = new Qt3DExtras::QTorusMesh;
      torusMesh->setRadius(5);
      torusMesh->setMinorRadius(1);
      torusMesh->setRings(100);
      torusMesh->setSlices(20);

      Qt3DCore::QTransform *torusTransform = new Qt3DCore::QTransform;
      torusTransform->setScale3D(QVector3D(1.5, 1, 0.5));
      torusTransform->setRotation(QQuaternion::fromAxisAndAngle(QVector3D(1, 0, 0), 45.0f));

      torusEntity->addComponent(torusMesh);
      torusEntity->addComponent(torusTransform);
      torusEntity->addComponent(material);

      // Sphere
      Qt3DCore::QEntity *sphereEntity = new Qt3DCore::QEntity(rootEntity);
      Qt3DExtras::QSphereMesh *sphereMesh = new Qt3DExtras::QSphereMesh;
      sphereMesh->setRadius(3);

      Qt3DCore::QTransform *sphereTransform = new Qt3DCore::QTransform;
      OrbitTransformController *controller = new OrbitTransformController(sphereTransform);
      controller->setTarget(sphereTransform);
      controller->setRadius(20.0f);

      QPropertyAnimation *sphereRotateTransformAnimation = new QPropertyAnimation(sphereTransform);
      sphereRotateTransformAnimation->setTargetObject(controller);
      sphereRotateTransformAnimation->setPropertyName("angle");
      sphereRotateTransformAnimation->setStartValue(QVariant::fromValue(0));
      sphereRotateTransformAnimation->setEndValue(QVariant::fromValue(360));
      sphereRotateTransformAnimation->setDuration(10000);
      sphereRotateTransformAnimation->setLoopCount(-1);
      sphereRotateTransformAnimation->start();

      sphereEntity->addComponent(sphereMesh);
      sphereEntity->addComponent(sphereTransform);
      sphereEntity->addComponent(material);

      return rootEntity;
  }

  int main(int argc, char* argv[])
  {
      QGuiApplication app(argc, argv);
      Qt3DExtras::Qt3DWindow view;

      Qt3DCore::QEntity *scene = createScene();

      // Camera
      Qt3DRender::QCamera *camera = view.camera();
      camera->lens()->setPerspectiveProjection(45.0f, 16.0f/9.0f, 0.1f, 1000.0f);
      camera->setPosition(QVector3D(0, 0, 40.0f));
      camera->setViewCenter(QVector3D(0, 0, 0));

      // For camera controls
      Qt3DExtras::QOrbitCameraController *camController = new Qt3DExtras::QOrbitCameraController(scene);
      camController->setLinearSpeed( 50.0f );
      camController->setLookSpeed( 180.0f );
      camController->setCamera(camera);

      view.setRootEntity(scene);
      view.show();

      return app.exec();
  }