diff options
Diffstat (limited to 'examples/qt3d/bigscene-cpp/main.cpp')
| -rw-r--r-- | examples/qt3d/bigscene-cpp/main.cpp | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/examples/qt3d/bigscene-cpp/main.cpp b/examples/qt3d/bigscene-cpp/main.cpp new file mode 100644 index 000000000..5ab25bf5e --- /dev/null +++ b/examples/qt3d/bigscene-cpp/main.cpp @@ -0,0 +1,155 @@ +/**************************************************************************** +** +** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt3D module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPLv3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or later as published by the Free +** Software Foundation and appearing in the file LICENSE.GPL included in +** the packaging of this file. Please review the following information to +** ensure the GNU General Public License version 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include <QGuiApplication> +#include <QPropertyAnimation> +#include <QUrl> +#include <QTimer> +#include <Qt3DCore/Window> +#include <Qt3DCore/QEntity> +#include <Qt3DCore/QCamera> +#include <Qt3DCore/QTransform> +#include <Qt3DCore/QTranslateTransform> +#include <Qt3DCore/QRotateTransform> +#include <Qt3DCore/QScaleTransform> +#include <Qt3DCore/qaspectengine.h> +#include <Qt3DInput/QInputAspect> +#include <Qt3DRenderer/QParameter> +#include <Qt3DRenderer/QFrameGraph> +#include <Qt3DRenderer/QCylinderMesh> +#include <Qt3DRenderer/QRenderAspect> +#include <Qt3DRenderer/QCameraSelector> +#include <Qt3DRenderer/QPhongMaterial> +#include <Qt3DRenderer/QForwardRenderer> +#include <qmath.h> + +using namespace Qt3D; + +int main(int ac, char **av) +{ + QGuiApplication app(ac, av); + + Window view; + Qt3D::QAspectEngine engine; + engine.registerAspect(new Qt3D::QRenderAspect()); + Qt3D::QInputAspect *input = new Qt3D::QInputAspect; + engine.registerAspect(input); + engine.initialize(); + QVariantMap data; + data.insert(QStringLiteral("surface"), QVariant::fromValue(static_cast<QSurface *>(&view))); + data.insert(QStringLiteral("eventSource"), QVariant::fromValue(&view)); + engine.setData(data); + QEntity *root = new QEntity(); + + // Camera + QCamera *cameraEntity = new QCamera(root); + cameraEntity->setObjectName(QStringLiteral("cameraEntity")); + 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)); + input->setCamera(cameraEntity); + + // FrameGraph + QFrameGraph *frameGraph = new QFrameGraph(); + QForwardRenderer *forwardRenderer = new QForwardRenderer(); + forwardRenderer->setCamera(cameraEntity); + forwardRenderer->setClearColor(Qt::black); + frameGraph->setActiveFrameGraph(forwardRenderer); + root->addComponent(frameGraph); + + + const float radius = 100.0f; + const int max = 1000; + const float det = 1.0f / max; + // Scene + for (int i = 0; i < max; i++) { + QEntity *e = new QEntity(); + Qt3D::QTransform *transform = new Qt3D::QTransform(); + QTranslateTransform *translation = new QTranslateTransform(); + QRotateTransform *rotateX = new QRotateTransform(); + QRotateTransform *rotateZ = new QRotateTransform(); + QCylinderMesh *mesh = new QCylinderMesh(); + QPhongMaterial *material = new QPhongMaterial(); + mesh->setRings(50.0f); + mesh->setSlices(30.0f); + mesh->setRadius(2.5f); + mesh->setLength(5.0f); + + const float angle = M_PI * 2.0f * i * det * 10.; + + material->setDiffuse(QColor(qFabs(qCos(angle)) * 255, 204, 75)); + material->setAmbient(Qt::gray); + material->setSpecular(Qt::white); + material->setShininess(150.0f); + + translation->setTranslation(QVector3D(radius * qCos(angle), 200.* i * det, radius * qSin(angle))); + rotateX->setAxis(QVector3D(1.0f, 0.0f, 0.0f)); + rotateZ->setAxis(QVector3D(0.0f, 0.0f, 1.0f)); + rotateX->setAngleDeg(30.0f * i); + rotateZ->setAngleDeg(45.0f * i); + + QPropertyAnimation *animX = new QPropertyAnimation(rotateX, QByteArrayLiteral("angle")); + animX->setDuration(2400 * i); + animX->setStartValue(QVariant::fromValue(i * 30.0f)); + animX->setEndValue(QVariant::fromValue((i + 1) * 390.0f)); + animX->setLoopCount(-1); + animX->start(); + + QPropertyAnimation *animZ = new QPropertyAnimation(rotateZ, QByteArrayLiteral("angle")); + animZ->setDuration(2400 * i); + animZ->setStartValue(QVariant::fromValue(i * 20.0f)); + animZ->setEndValue(QVariant::fromValue((i + 1) * 380.0f)); + animZ->setLoopCount(-1); + animZ->start(); + + transform->addTransform(rotateX); + transform->addTransform(rotateZ); + transform->addTransform(translation); + e->addComponent(transform); + e->addComponent(mesh); + e->addComponent(material); + e->setParent(root); + } + + engine.setRootEntity(root); + view.show(); + + if (app.arguments().contains(("--bench"))) + QTimer::singleShot(25 * 1000, &app, &QCoreApplication::quit); + + return app.exec(); +} |