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| ** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). |
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| |
| #include "entity.h" |
| |
| #include <QGuiApplication> |
| |
| #include <QPropertyAnimation> |
| #include <QUrl> |
| #include <QTimer> |
| #include <Qt3DCore/QEntity> |
| #include <Qt3DRender/QCamera> |
| #include <Qt3DCore/QTransform> |
| #include <Qt3DCore/qaspectengine.h> |
| #include <Qt3DInput/QInputAspect> |
| #include <Qt3DRender/QParameter> |
| #include <Qt3DExtras/QCylinderMesh> |
| #include <Qt3DRender/QRenderAspect> |
| #include <Qt3DRender/QCameraSelector> |
| #include <Qt3DExtras/QPhongMaterial> |
| #include <Qt3DExtras/QForwardRenderer> |
| #include <qmath.h> |
| #include <Qt3DExtras/qt3dwindow.h> |
| #include <Qt3DExtras/qfirstpersoncameracontroller.h> |
| |
| using namespace Qt3DCore; |
| using namespace Qt3DRender; |
| |
| int main(int ac, char **av) |
| { |
| QGuiApplication app(ac, av); |
| Qt3DExtras::Qt3DWindow view; |
| view.defaultFrameGraph()->setClearColor(Qt::black); |
| |
| QEntity *root = new QEntity(); |
| |
| // Mesh |
| auto *mesh = new Qt3DExtras::QCylinderMesh(root); |
| mesh->setRings(50.0f); |
| mesh->setSlices(30.0f); |
| mesh->setRadius(2.5f); |
| mesh->setLength(5.0f); |
| |
| // Material |
| auto phongMaterial = new Qt3DExtras::QPhongMaterial(root); |
| auto effect = phongMaterial->effect(); |
| |
| // Camera |
| QCamera *cameraEntity = view.camera(); |
| cameraEntity->lens()->setPerspectiveProjection(45.0f, 16.0f/9.0f, 0.1f, 1000.0f); |
| cameraEntity->setPosition(QVector3D(0, 250.0f, 50.0f)); |
| cameraEntity->setUpVector(QVector3D(0, 1, 0)); |
| cameraEntity->setViewCenter(QVector3D(0, 0, 0)); |
| |
| // For camera controls |
| Qt3DExtras::QFirstPersonCameraController *camController = new Qt3DExtras::QFirstPersonCameraController(root); |
| camController->setCamera(cameraEntity); |
| |
| const double radius = 100.0; |
| const int max = 1000; |
| const double det = 1.0 / max; |
| |
| // Scene |
| for (int i = 0; i < max; i++) { |
| Entity *e = new Entity(effect, root); |
| e->addComponent(mesh); |
| const double angle = M_PI * 2.0 * double(i) * det * 10.; |
| |
| e->setDiffuseColor(QColor(int(qFabs(qCos(angle)) * 255.0), 204, 75)); |
| e->setPosition(QVector3D(float(radius * qCos(angle)), |
| float(-200.0 * i * det), |
| float(radius * qSin(angle)))); |
| e->setTheta(30.0f * i); |
| e->setPhi(45.0f * i); |
| |
| QPropertyAnimation *animX = new QPropertyAnimation(e, QByteArrayLiteral("theta")); |
| animX->setDuration(2400 * (i + 1)); |
| animX->setStartValue(QVariant::fromValue(i * 30.0f)); |
| animX->setEndValue(QVariant::fromValue((i + 1) * 390.0f)); |
| animX->setLoopCount(-1); |
| animX->start(); |
| |
| QPropertyAnimation *animZ = new QPropertyAnimation(e, QByteArrayLiteral("phi")); |
| animZ->setDuration(2400 * (i + 1)); |
| animZ->setStartValue(QVariant::fromValue(i * 20.0f)); |
| animZ->setEndValue(QVariant::fromValue((i + 1) * 380.0f)); |
| animZ->setLoopCount(-1); |
| animZ->start(); |
| } |
| |
| view.setRootEntity(root); |
| view.show(); |
| |
| if (app.arguments().contains(("--bench"))) |
| QTimer::singleShot(25 * 1000, &app, &QCoreApplication::quit); |
| |
| return app.exec(); |
| } |