main.cpp 范例文件

simple-cpp/main.cpp
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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(); }