mirror of https://github.com/qt/qt3d.git
99 lines
3.7 KiB
C++
99 lines
3.7 KiB
C++
// Copyright (C) 2017 The Qt Company Ltd.
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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 <QAnimationDriver>
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#include <QPropertyAnimation>
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#include <QQmlComponent>
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#include <QQmlEngine>
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#include <Qt3DCore/QEntity>
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#include <Qt3DCore/QAspectEngine>
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#include <Qt3DCore/QTransform>
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#include <Qt3DRender/QCamera>
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#include <Qt3DInput/QInputAspect>
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#include <Qt3DRender/QRenderAspect>
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#include <Qt3DRender/QEffect>
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#include <Qt3DRender/QMaterial>
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#include <Qt3DExtras/QForwardRenderer>
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#include <Qt3DQuickScene2D/QScene2D>
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#include <Qt3DExtras/QPlaneMesh>
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#include <Qt3DRender/QTextureWrapMode>
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#include <Qt3DRender/QClearBuffers>
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#include <Qt3DRender/QTexture>
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#include <Qt3DRender/QGeometryRenderer>
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#include "qt3dwindow.h"
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#include "qfirstpersoncameracontroller.h"
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#include "planematerial.h"
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#include <QtGui/qquaternion.h>
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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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// Scene Root
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Qt3DCore::QEntity *sceneRoot = new Qt3DCore::QEntity();
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// Scene Camera
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Qt3DRender::QCamera *basicCamera = view.camera();
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basicCamera->setProjectionType(Qt3DRender::QCameraLens::PerspectiveProjection);
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basicCamera->setAspectRatio(view.width() / view.height());
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basicCamera->setUpVector(QVector3D(0.0f, 1.0f, 0.0f));
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basicCamera->setPosition(QVector3D(0.0f, 0.0f, 6.0f));
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basicCamera->setViewCenter(QVector3D(0.0f, 0.0f, 0.0f));
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basicCamera->setNearPlane(0.1f);
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basicCamera->setFarPlane(1000.0f);
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basicCamera->setFieldOfView(45.0f);
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// For camera controls
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Qt3DExtras::QFirstPersonCameraController *camController = new Qt3DExtras::QFirstPersonCameraController(sceneRoot);
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camController->setCamera(basicCamera);
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Qt3DRender::QFrameGraphNode* frameGraphNode = view.activeFrameGraph();
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while (frameGraphNode->childNodes().size() > 0)
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frameGraphNode = (Qt3DRender::QFrameGraphNode*)frameGraphNode->childNodes().at(0);
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view.defaultFrameGraph()->setClearColor(QColor::fromRgbF(1.0f, 1.0f, 1.0f));
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Qt3DRender::Quick::QScene2D *qmlTextureRenderer = new Qt3DRender::Quick::QScene2D(frameGraphNode);
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Qt3DRender::QTexture2D* offscreenTexture = new Qt3DRender::QTexture2D(qmlTextureRenderer);
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offscreenTexture->setSize(1024, 1024);
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offscreenTexture->setFormat(Qt3DRender::QAbstractTexture::RGBA8_UNorm);
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offscreenTexture->setGenerateMipMaps(true);
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offscreenTexture->setMagnificationFilter(Qt3DRender::QAbstractTexture::Linear);
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offscreenTexture->setMinificationFilter(Qt3DRender::QAbstractTexture::Linear);
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offscreenTexture->setWrapMode(Qt3DRender::QTextureWrapMode(Qt3DRender::QTextureWrapMode::ClampToEdge, offscreenTexture));
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Qt3DRender::QRenderTargetOutput *output = new Qt3DRender::QRenderTargetOutput(qmlTextureRenderer);
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output->setAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color0);
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output->setTexture(offscreenTexture);
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qmlTextureRenderer->setOutput(output);
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QQmlEngine engine;
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QQmlComponent component(&engine, QUrl(QStringLiteral("qrc:/OffscreenGui.qml")));
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qmlTextureRenderer->setItem(static_cast<QQuickItem *>(component.create()));
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Qt3DCore::QEntity* planeEntity = new Qt3DCore::QEntity(sceneRoot);
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Qt3DExtras::QPlaneMesh* planeMesh = new Qt3DExtras::QPlaneMesh(planeEntity);
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planeMesh->setWidth(4);
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planeMesh->setHeight(4);
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planeEntity->addComponent(planeMesh);
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PlaneMaterial* material = new PlaneMaterial(offscreenTexture, planeEntity);
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planeEntity->addComponent(material);
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Qt3DCore::QTransform* transform = new Qt3DCore::QTransform(planeEntity);
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transform->setRotation(QQuaternion::fromAxisAndAngle(1,0,0,90));
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planeEntity->addComponent(transform);
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view.setRootEntity(sceneRoot);
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view.show();
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return app.exec();
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}
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