main.cpp - mozsearch

++ // Copyright (C) 2017 The Qt Company Ltd.

++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only

++

++ #include <QGuiApplication>

++ #include <QAnimationDriver>

++ #include <QPropertyAnimation>

++ #include <QQmlComponent>

++ #include <QQmlEngine>

++

++ #include <Qt3DCore/QEntity>

++ #include <Qt3DCore/QAspectEngine>

++ #include <Qt3DCore/QTransform>

++ #include <Qt3DRender/QCamera>

++

++ #include <Qt3DInput/QInputAspect>

++

++ #include <Qt3DRender/QRenderAspect>

++ #include <Qt3DRender/QEffect>

++ #include <Qt3DRender/QMaterial>

++ #include <Qt3DExtras/QForwardRenderer>

++ #include <Qt3DQuickScene2D/QScene2D>

++ #include <Qt3DExtras/QPlaneMesh>

++ #include <Qt3DRender/QTextureWrapMode>

++ #include <Qt3DRender/QClearBuffers>

++ #include <Qt3DRender/QTexture>

++ #include <Qt3DRender/QGeometryRenderer>

++

++ #include "qt3dwindow.h"

++ #include "qfirstpersoncameracontroller.h"

++ #include "planematerial.h"

++

++ #include <QtGui/qquaternion.h>

++

++ int main(int argc, char *argv[])

++ {

++     QGuiApplication app(argc, argv);

++

++     Qt3DExtras::Qt3DWindow view;

++

++     // Scene Root

++     Qt3DCore::QEntity *sceneRoot = new Qt3DCore::QEntity();

++

++     // Scene Camera

++     Qt3DRender::QCamera *basicCamera = view.camera();

++     basicCamera->setProjectionType(Qt3DRender::QCameraLens::PerspectiveProjection);

++     basicCamera->setAspectRatio(view.width() / view.height());

++     basicCamera->setUpVector(QVector3D(0.0f, 1.0f, 0.0f));

++     basicCamera->setPosition(QVector3D(0.0f, 0.0f, 6.0f));

++     basicCamera->setViewCenter(QVector3D(0.0f, 0.0f, 0.0f));

++     basicCamera->setNearPlane(0.1f);

++     basicCamera->setFarPlane(1000.0f);

++     basicCamera->setFieldOfView(45.0f);

++

++     // For camera controls

++     Qt3DExtras::QFirstPersonCameraController *camController = new Qt3DExtras::QFirstPersonCameraController(sceneRoot);

++     camController->setCamera(basicCamera);

++

++     Qt3DRender::QFrameGraphNode* frameGraphNode = view.activeFrameGraph();

++     while (frameGraphNode->childNodes().size() > 0)

++         frameGraphNode = (Qt3DRender::QFrameGraphNode*)frameGraphNode->childNodes().at(0);

++     view.defaultFrameGraph()->setClearColor(QColor::fromRgbF(1.0f, 1.0f, 1.0f));

++     Qt3DRender::Quick::QScene2D *qmlTextureRenderer = new Qt3DRender::Quick::QScene2D(frameGraphNode);

++

++     Qt3DRender::QTexture2D* offscreenTexture = new Qt3DRender::QTexture2D(qmlTextureRenderer);

++     offscreenTexture->setSize(1024, 1024);

++     offscreenTexture->setFormat(Qt3DRender::QAbstractTexture::RGBA8_UNorm);

++     offscreenTexture->setGenerateMipMaps(true);

++     offscreenTexture->setMagnificationFilter(Qt3DRender::QAbstractTexture::Linear);

++     offscreenTexture->setMinificationFilter(Qt3DRender::QAbstractTexture::Linear);

++     offscreenTexture->setWrapMode(Qt3DRender::QTextureWrapMode(Qt3DRender::QTextureWrapMode::ClampToEdge, offscreenTexture));

++

++     Qt3DRender::QRenderTargetOutput *output = new Qt3DRender::QRenderTargetOutput(qmlTextureRenderer);

++     output->setAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color0);

++     output->setTexture(offscreenTexture);

++

++     qmlTextureRenderer->setOutput(output);

++     QQmlEngine engine;

++     QQmlComponent component(&engine, QUrl(QStringLiteral("qrc:/OffscreenGui.qml")));

++     if (component.isError()) {

++         qFatal() << component.errors();

++     }

++     qmlTextureRenderer->setItem(static_cast<QQuickItem *>(component.create()));

++

++     Qt3DCore::QEntity* planeEntity = new Qt3DCore::QEntity(sceneRoot);

++     Qt3DExtras::QPlaneMesh* planeMesh = new Qt3DExtras::QPlaneMesh(planeEntity);

++     planeMesh->setWidth(4);

++     planeMesh->setHeight(4);

++     planeEntity->addComponent(planeMesh);

++

++     PlaneMaterial* material = new PlaneMaterial(offscreenTexture, planeEntity);

++     planeEntity->addComponent(material);

++

++     Qt3DCore::QTransform* transform = new Qt3DCore::QTransform(planeEntity);

++     transform->setRotation(QQuaternion::fromAxisAndAngle(1,0,0,90));

++     planeEntity->addComponent(transform);

++

++     view.setRootEntity(sceneRoot);

++     view.show();

++

++     return app.exec();

++ }

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