main.cpp Example File

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  #include "scenemodifier.h"

  #include <QGuiApplication>

  #include <Qt3DRender/qcamera.h>
  #include <Qt3DCore/qentity.h>
  #include <Qt3DRender/qcameralens.h>

  #include <QtWidgets/QApplication>
  #include <QtWidgets/QWidget>
  #include <QtWidgets/QHBoxLayout>
  #include <QtWidgets/QCheckBox>
  #include <QtWidgets/QCommandLinkButton>
  #include <QtGui/QScreen>

  #include <Qt3DInput/QInputAspect>

  #include <Qt3DExtras/qtorusmesh.h>
  #include <Qt3DRender/qmesh.h>
  #include <Qt3DRender/qtechnique.h>
  #include <Qt3DRender/qmaterial.h>
  #include <Qt3DRender/qeffect.h>
  #include <Qt3DRender/qtexture.h>
  #include <Qt3DRender/qrenderpass.h>
  #include <Qt3DRender/qsceneloader.h>
  #include <Qt3DRender/qpointlight.h>

  #include <Qt3DCore/qtransform.h>
  #include <Qt3DCore/qaspectengine.h>

  #include <Qt3DRender/qrenderaspect.h>
  #include <Qt3DExtras/qforwardrenderer.h>

  #include <Qt3DExtras/qt3dwindow.h>
  #include <Qt3DExtras/qfirstpersoncameracontroller.h>

  int main(int argc, char **argv)
  {
      QApplication app(argc, argv);
      Qt3DExtras::Qt3DWindow *view = new Qt3DExtras::Qt3DWindow();
      view->defaultFrameGraph()->setClearColor(QColor(QRgb(0x4d4d4f)));
      QWidget *container = QWidget::createWindowContainer(view);
      QSize screenSize = view->screen()->size();
      container->setMinimumSize(QSize(200, 100));
      container->setMaximumSize(screenSize);

      QWidget *widget = new QWidget;
      QHBoxLayout *hLayout = new QHBoxLayout(widget);
      QVBoxLayout *vLayout = new QVBoxLayout();
      vLayout->setAlignment(Qt::AlignTop);
      hLayout->addWidget(container, 1);
      hLayout->addLayout(vLayout);

      widget->setWindowTitle(QStringLiteral("Basic shapes"));

      Qt3DInput::QInputAspect *input = new Qt3DInput::QInputAspect;
      view->registerAspect(input);

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

      // Camera
      Qt3DRender::QCamera *cameraEntity = view->camera();

      cameraEntity->lens()->setPerspectiveProjection(45.0f, 16.0f/9.0f, 0.1f, 1000.0f);
      cameraEntity->setPosition(QVector3D(0, 0, 20.0f));
      cameraEntity->setUpVector(QVector3D(0, 1, 0));
      cameraEntity->setViewCenter(QVector3D(0, 0, 0));

      Qt3DCore::QEntity *lightEntity = new Qt3DCore::QEntity(rootEntity);
      Qt3DRender::QPointLight *light = new Qt3DRender::QPointLight(lightEntity);
      light->setColor("white");
      light->setIntensity(1);
      lightEntity->addComponent(light);
      Qt3DCore::QTransform *lightTransform = new Qt3DCore::QTransform(lightEntity);
      lightTransform->setTranslation(cameraEntity->position());
      lightEntity->addComponent(lightTransform);

      // For camera controls
      Qt3DExtras::QFirstPersonCameraController *camController = new Qt3DExtras::QFirstPersonCameraController(rootEntity);
      camController->setCamera(cameraEntity);

      // Scenemodifier
      SceneModifier *modifier = new SceneModifier(rootEntity);

      // Set root object of the scene
      view->setRootEntity(rootEntity);

      // Create control widgets
      QCommandLinkButton *info = new QCommandLinkButton();
      info->setText(QStringLiteral("Qt3D ready-made meshes"));
      info->setDescription(QString::fromLatin1("Qt3D provides several ready-made meshes, like torus, cylinder, cone, "
                                               "cube, plane and sphere."));
      info->setIconSize(QSize(0,0));

      QCheckBox *torusCB = new QCheckBox(widget);
      torusCB->setChecked(true);
      torusCB->setText(QStringLiteral("Torus"));

      QCheckBox *coneCB = new QCheckBox(widget);
      coneCB->setChecked(true);
      coneCB->setText(QStringLiteral("Cone"));

      QCheckBox *cylinderCB = new QCheckBox(widget);
      cylinderCB->setChecked(true);
      cylinderCB->setText(QStringLiteral("Cylinder"));

      QCheckBox *cuboidCB = new QCheckBox(widget);
      cuboidCB->setChecked(true);
      cuboidCB->setText(QStringLiteral("Cuboid"));

      QCheckBox *planeCB = new QCheckBox(widget);
      planeCB->setChecked(true);
      planeCB->setText(QStringLiteral("Plane"));

      QCheckBox *sphereCB = new QCheckBox(widget);
      sphereCB->setChecked(true);
      sphereCB->setText(QStringLiteral("Sphere"));

      vLayout->addWidget(info);
      vLayout->addWidget(torusCB);
      vLayout->addWidget(coneCB);
      vLayout->addWidget(cylinderCB);
      vLayout->addWidget(cuboidCB);
      vLayout->addWidget(planeCB);
      vLayout->addWidget(sphereCB);

      QObject::connect(torusCB, &QCheckBox::stateChanged,
                       modifier, &SceneModifier::enableTorus);
      QObject::connect(coneCB, &QCheckBox::stateChanged,
                       modifier, &SceneModifier::enableCone);
      QObject::connect(cylinderCB, &QCheckBox::stateChanged,
                       modifier, &SceneModifier::enableCylinder);
      QObject::connect(cuboidCB, &QCheckBox::stateChanged,
                       modifier, &SceneModifier::enableCuboid);
      QObject::connect(planeCB, &QCheckBox::stateChanged,
                       modifier, &SceneModifier::enablePlane);
      QObject::connect(sphereCB, &QCheckBox::stateChanged,
                       modifier, &SceneModifier::enableSphere);

      torusCB->setChecked(true);
      coneCB->setChecked(true);
      cylinderCB->setChecked(true);
      cuboidCB->setChecked(true);
      planeCB->setChecked(true);
      sphereCB->setChecked(true);

      // Show window
      widget->show();
      widget->resize(1200, 800);

      return app.exec();
  }