mirror of https://github.com/qt/qt3d.git
118 lines
3.4 KiB
C++
118 lines
3.4 KiB
C++
// Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
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#include <QGuiApplication>
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#include <Qt3DRender/qcamera.h>
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#include <Qt3DRender/qgeometryrenderer.h>
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#include <Qt3DExtras/qcylindermesh.h>
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#include <Qt3DExtras/qspheremesh.h>
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#include <Qt3DExtras/qphongmaterial.h>
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#include <Qt3DCore/qentity.h>
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#include <Qt3DCore/qtransform.h>
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#include <Qt3DExtras/qt3dwindow.h>
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#include <Qt3DExtras/qorbitcameracontroller.h>
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#include <QtGui/qquaternion.h>
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#include <QTimer>
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class ComponentSwapper : public QObject
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{
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Q_OBJECT
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public:
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ComponentSwapper(Qt3DCore::QEntity *entity,
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Qt3DCore::QComponent *component1,
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Qt3DCore::QComponent *component2,
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QObject * parent = nullptr)
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: QObject(parent)
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, m_entity(entity)
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, m_component1(component1)
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, m_component2(component2)
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, m_currentComponent(component1)
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{
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// Set initial state
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m_entity->addComponent(m_component1);
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}
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public slots:
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void swapComponents()
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{
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if (m_currentComponent == m_component1) {
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m_entity->removeComponent(m_component1);
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m_entity->addComponent(m_component2);
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m_currentComponent = m_component2;
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} else {
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m_entity->removeComponent(m_component2);
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m_entity->addComponent(m_component1);
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m_currentComponent = m_component1;
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}
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}
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private:
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Qt3DCore::QEntity *m_entity;
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Qt3DCore::QComponent *m_component1;
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Qt3DCore::QComponent *m_component2;
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Qt3DCore::QComponent *m_currentComponent;
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};
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int main(int argc, char **argv)
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{
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QGuiApplication app(argc, argv);
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Qt3DExtras::Qt3DWindow view;
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// Root entity
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Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity();
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// Camera
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Qt3DRender::QCamera *camera = view.camera();
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camera->setPosition(QVector3D(0, 0, 20.0f));
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camera->setViewCenter(QVector3D(0, 0, 0));
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// For camera controls
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Qt3DExtras::QOrbitCameraController *cameraController = new Qt3DExtras::QOrbitCameraController(rootEntity);
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cameraController->setCamera(camera);
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// Cylinder mesh data
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Qt3DExtras::QCylinderMesh *cylinderMesh = new Qt3DExtras::QCylinderMesh();
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cylinderMesh->setRadius(1);
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cylinderMesh->setLength(3);
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cylinderMesh->setRings(5);
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cylinderMesh->setSlices(40);
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// Sphere mesh data
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Qt3DExtras::QSphereMesh *sphereMesh = new Qt3DExtras::QSphereMesh();
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sphereMesh->setRings(20);
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sphereMesh->setSlices(40);
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// Transform for cylinder
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Qt3DCore::QTransform *transform = new Qt3DCore::QTransform;
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transform->setScale(1.5f);
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transform->setRotation(QQuaternion::fromAxisAndAngle(QVector3D(1, 0, 0), 45.0f));
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// Material
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Qt3DExtras::QPhongMaterial *material = new Qt3DExtras::QPhongMaterial(rootEntity);
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material->setDiffuse(Qt::red);
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// Cylinder
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Qt3DCore::QEntity *cylinder = new Qt3DCore::QEntity(rootEntity);
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cylinder->addComponent(transform);
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cylinder->addComponent(material);
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// Set root object of the scene
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view.setRootEntity(rootEntity);
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view.show();
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ComponentSwapper *swapper = new ComponentSwapper(cylinder, cylinderMesh, sphereMesh);
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QTimer *timer = new QTimer;
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QObject::connect(timer, SIGNAL(timeout()), swapper, SLOT(swapComponents()));
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timer->start(2000);
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return app.exec();
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}
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#include "main.moc"
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