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36
37#include <QGuiApplication>
38#include <QAnimationDriver>
39#include <QPropertyAnimation>
40#include <QQmlComponent>
41#include <QQmlEngine>
42
43#include <Qt3DCore/QEntity>
44#include <Qt3DCore/QAspectEngine>
45#include <Qt3DCore/QTransform>
46#include <Qt3DRender/QCamera>
47
48#include <Qt3DInput/QInputAspect>
49
50#include <Qt3DRender/QRenderAspect>
51#include <Qt3DRender/QEffect>
52#include <Qt3DRender/QMaterial>
53#include <Qt3DExtras/QForwardRenderer>
54#include <Qt3DQuickScene2D/QScene2D>
55#include <Qt3DExtras/QPlaneMesh>
56#include <Qt3DRender/QTextureWrapMode>
57#include <Qt3DRender/QClearBuffers>
58#include <Qt3DRender/QTexture>
59
60#include "qt3dwindow.h"
61#include "qfirstpersoncameracontroller.h"
62#include "planematerial.h"
63
64int main(int argc, char *argv[])
65{
66 QGuiApplication app(argc, argv);
67
68 Qt3DExtras::Qt3DWindow view;
69
70 // Scene Root
71 Qt3DCore::QEntity *sceneRoot = new Qt3DCore::QEntity();
72
73 // Scene Camera
74 Qt3DRender::QCamera *basicCamera = view.camera();
75 basicCamera->setProjectionType(Qt3DRender::QCameraLens::PerspectiveProjection);
76 basicCamera->setAspectRatio(view.width() / view.height());
77 basicCamera->setUpVector(QVector3D(0.0f, 1.0f, 0.0f));
78 basicCamera->setPosition(QVector3D(0.0f, 0.0f, 6.0f));
79 basicCamera->setViewCenter(QVector3D(0.0f, 0.0f, 0.0f));
80 basicCamera->setNearPlane(0.1f);
81 basicCamera->setFarPlane(1000.0f);
82 basicCamera->setFieldOfView(45.0f);
83
84 // For camera controls
85 Qt3DExtras::QFirstPersonCameraController *camController = new Qt3DExtras::QFirstPersonCameraController(sceneRoot);
86 camController->setCamera(basicCamera);
87
88 Qt3DRender::QFrameGraphNode* frameGraphNode = view.activeFrameGraph();
89 while (frameGraphNode->childNodes().size() > 0)
90 frameGraphNode = (Qt3DRender::QFrameGraphNode*)frameGraphNode->childNodes().at(0);
91 view.defaultFrameGraph()->setClearColor(QColor::fromRgbF(1.0f, 1.0f, 1.0f));
92 Qt3DRender::Quick::QScene2D *qmlTextureRenderer = new Qt3DRender::Quick::QScene2D(frameGraphNode);
93
94 Qt3DRender::QTexture2D* offscreenTexture = new Qt3DRender::QTexture2D(qmlTextureRenderer);
95 offscreenTexture->setSize(1024, 1024);
96 offscreenTexture->setFormat(Qt3DRender::QAbstractTexture::RGBA8_UNorm);
97 offscreenTexture->setGenerateMipMaps(true);
98 offscreenTexture->setMagnificationFilter(Qt3DRender::QAbstractTexture::Linear);
99 offscreenTexture->setMinificationFilter(Qt3DRender::QAbstractTexture::Linear);
100 offscreenTexture->setWrapMode(Qt3DRender::QTextureWrapMode(Qt3DRender::QTextureWrapMode::ClampToEdge, offscreenTexture));
101
102 Qt3DRender::QRenderTargetOutput *output = new Qt3DRender::QRenderTargetOutput(qmlTextureRenderer);
103 output->setAttachmentPoint(Qt3DRender::QRenderTargetOutput::Color0);
104 output->setTexture(offscreenTexture);
105
106 qmlTextureRenderer->setOutput(output);
107 QQmlEngine engine;
108 QQmlComponent component(&engine, QUrl(QStringLiteral("qrc:/OffscreenGui.qml")));
109 qmlTextureRenderer->setItem(static_cast<QQuickItem *>(component.create()));
110
111 Qt3DCore::QEntity* planeEntity = new Qt3DCore::QEntity(sceneRoot);
112 Qt3DExtras::QPlaneMesh* planeMesh = new Qt3DExtras::QPlaneMesh(planeEntity);
113 planeMesh->setWidth(4);
114 planeMesh->setHeight(4);
115 planeEntity->addComponent(planeMesh);
116
117 PlaneMaterial* material = new PlaneMaterial(offscreenTexture, planeEntity);
118 planeEntity->addComponent(material);
119
120 Qt3DCore::QTransform* transform = new Qt3DCore::QTransform(planeEntity);
121 transform->setRotation(QQuaternion::fromAxisAndAngle(1,0,0,90));
122 planeEntity->addComponent(transform);
123
124 view.setRootEntity(sceneRoot);
125 view.show();
126
127 return app.exec();
128}
129