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// Copyright (C) 2019 Klaralvdalens Datakonsult AB (KDAB).
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QGuiApplication>
#include <QTimer>
#include <Qt3DInput/QInputAspect>
#include <Qt3DRender/qcamera.h>
#include <Qt3DRender/qcameralens.h>
#include <Qt3DExtras/qcylindermesh.h>
#include <Qt3DRender/qmesh.h>
#include <Qt3DRender/qtechnique.h>
#include <Qt3DExtras/qphongmaterial.h>
#include <Qt3DRender/qeffect.h>
#include <Qt3DRender/qtexture.h>
#include <Qt3DRender/qrenderpass.h>
#include <Qt3DRender/qrenderaspect.h>
#include <Qt3DExtras/qforwardrenderer.h>
#include <Qt3DCore/qentity.h>
#include <Qt3DCore/qtransform.h>
#include <Qt3DCore/qaspectengine.h>
#include <Qt3DExtras/qt3dwindow.h>
#include <Qt3DExtras/qorbitcameracontroller.h>
#include <QThread>
#include <QLoggingCategory>
#include <type_traits>
int main(int argc, char **argv)
{
QGuiApplication app(argc, argv);
Qt3DExtras::Qt3DWindow view;
QLoggingCategory::setFilterRules(QLatin1String("Qt3D.Renderer.RenderNodes=true"));
// Root entity
Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity();
view.setRootEntity(rootEntity);
rootEntity->setObjectName(QLatin1String("Root Entity"));
// Set root object of the scene
view.show();
// Camera
Qt3DRender::QCamera *camera = view.camera();
camera->lens()->setPerspectiveProjection(45.0f, 16.0f / 9.0f, 0.1f, 1000.0f);
camera->setPosition(QVector3D(0, 0, 20.0f));
camera->setUpVector(QVector3D(0, 1, 0));
camera->setViewCenter(QVector3D(0, 0, 0));
// For camera controls
Qt3DExtras::QOrbitCameraController *cameraController = new Qt3DExtras::QOrbitCameraController(rootEntity);
cameraController->setCamera(camera);
// Cylinder shape data
Qt3DExtras::QCylinderMesh *mesh = new Qt3DExtras::QCylinderMesh();
qDebug() << "Setup complete. Creating cylinders\n";
// simple setParent from nullptr (OK for QTBUG-73905)
// green cylinder, bottom left
{
Qt3DCore::QTransform *leftTransform = new Qt3DCore::QTransform;
leftTransform->setTranslation(QVector3D(-5, -2, 0));
leftTransform->setObjectName(QLatin1String("Green transform"));
Qt3DExtras::QPhongMaterial *greenMaterial = new Qt3DExtras::QPhongMaterial(rootEntity);
greenMaterial->setObjectName(QLatin1String("Green Material"));
greenMaterial->setDiffuse(Qt::green);
Qt3DCore::QEntity *grandParentNode = new Qt3DCore::QEntity();
Qt3DCore::QEntity *parentNode = new Qt3DCore::QEntity();
Qt3DCore::QEntity *leafNode = new Qt3DCore::QEntity();
grandParentNode->setObjectName(QLatin1String("Green Grandparent"));
parentNode->setObjectName(QLatin1String("Green Parent"));
leafNode->setObjectName(QLatin1String("Green Leaf"));
leafNode->addComponent(mesh);
leafNode->addComponent(greenMaterial);
parentNode->addComponent(leftTransform);
grandParentNode->setParent(rootEntity);
parentNode->setParent(grandParentNode);
leafNode->setParent(parentNode);
}
// simple setParent from rootEntity (doesn't work QTBUG-73905)
// yellow cylinder, top left
{
Qt3DCore::QTransform *leftTransform = new Qt3DCore::QTransform;
leftTransform->setTranslation(QVector3D(-5, 2, 0));
leftTransform->setObjectName(QLatin1String("Yellow Transform"));
Qt3DExtras::QPhongMaterial *yellowMaterial = new Qt3DExtras::QPhongMaterial(rootEntity);
yellowMaterial->setObjectName(QLatin1String("Yellow Material"));
yellowMaterial->setDiffuse(Qt::yellow);
Qt3DCore::QEntity *grandParentNode = new Qt3DCore::QEntity(rootEntity);
Qt3DCore::QEntity *parentNode = new Qt3DCore::QEntity(rootEntity);
Qt3DCore::QEntity *leafNode = new Qt3DCore::QEntity(rootEntity);
leafNode->setObjectName(QLatin1String("Yellow Leaf"));
grandParentNode->setObjectName(QLatin1String("Yellow Grandparent"));
parentNode->setObjectName(QLatin1String("Yellow Parent"));
leafNode->addComponent(mesh);
leafNode->addComponent(yellowMaterial);
parentNode->addComponent(leftTransform);
// sometimes this can change things
//QCoreApplication::processEvents();
grandParentNode->setParent(rootEntity);
parentNode->setParent(grandParentNode);
leafNode->setParent(parentNode);
}
// complex setParent from nullptr (OK QTBUG-73905?)
// red cylinder, Bottom-right
{
Qt3DCore::QNode *tree1node1 = new Qt3DCore::QNode();
Qt3DCore::QEntity *tree1node2 = new Qt3DCore::QEntity();
Qt3DCore::QNode *tree1node3 = new Qt3DCore::QNode();
tree1node1->setObjectName(QLatin1String("Red Tree1-Node1"));
tree1node2->setObjectName(QLatin1String("Red Tree1-Node2"));
tree1node3->setObjectName(QLatin1String("Red Tree1-Node3"));
Qt3DCore::QNode *tree2node1 = new Qt3DCore::QNode();
Qt3DCore::QEntity *tree2node2 = new Qt3DCore::QEntity();
Qt3DCore::QNode *tree2node3 = new Qt3DCore::QNode();
tree2node1->setObjectName(QLatin1String("Red Tree2-Node1"));
tree2node2->setObjectName(QLatin1String("Red Tree2-Node2"));
tree2node3->setObjectName(QLatin1String("Red Tree2-Node3"));
Qt3DCore::QTransform *wrongRedTransform = new Qt3DCore::QTransform;
wrongRedTransform->setTranslation(QVector3D(1, -1, 0));
Qt3DCore::QTransform *bottomRightTransform = new Qt3DCore::QTransform;
bottomRightTransform->setTranslation(QVector3D(5, -2, 0));
bottomRightTransform->setObjectName(QLatin1String("Red BR Transform"));
wrongRedTransform->setObjectName(QLatin1String("Red Wrong Transform"));
Qt3DExtras::QPhongMaterial *redMaterial = new Qt3DExtras::QPhongMaterial(rootEntity);
redMaterial->setDiffuse(Qt::red);
redMaterial->setObjectName(QLatin1String("Red Material"));
Qt3DCore::QEntity *leafNode = new Qt3DCore::QEntity();
leafNode->setObjectName(QLatin1String("Red Leaf"));
leafNode->addComponent(mesh);
leafNode->addComponent(redMaterial);
tree1node2->addComponent(wrongRedTransform);
tree2node2->addComponent(bottomRightTransform);
tree1node1->setParent(rootEntity);
tree1node2->setParent(tree1node1);
tree1node3->setParent(tree1node2);
tree2node1->setParent(rootEntity);
tree2node2->setParent(tree2node1);
tree2node3->setParent(tree2node2);
leafNode->setParent(tree1node3);
leafNode->setParent(tree2node3);
}
// complex setParent from rootEntity (doesn't work QTBUG-73905)
// blue cylinder, top right
{
Qt3DCore::QNode *tree1node1 = new Qt3DCore::QNode(rootEntity);
Qt3DCore::QEntity *tree1node2 = new Qt3DCore::QEntity(rootEntity);
Qt3DCore::QNode *tree1node3 = new Qt3DCore::QNode(rootEntity);
tree1node1->setObjectName(QLatin1String("Blue Tree1-Node1"));
tree1node2->setObjectName(QLatin1String("Blue Tree1-Node2"));
tree1node3->setObjectName(QLatin1String("Blue Tree1-Node3"));
Qt3DCore::QNode *tree2node1 = new Qt3DCore::QNode(rootEntity);
Qt3DCore::QEntity *tree2node2 = new Qt3DCore::QEntity(rootEntity);
Qt3DCore::QNode *tree2node3 = new Qt3DCore::QNode(rootEntity);
tree2node1->setObjectName(QLatin1String("Blue Tree2-Node1"));
tree2node2->setObjectName(QLatin1String("Blue Tree2-Node2"));
tree2node3->setObjectName(QLatin1String("Blue Tree2-Node3"));
Qt3DCore::QTransform *wrongBlueTransform = new Qt3DCore::QTransform;
wrongBlueTransform->setTranslation(QVector3D(1, 1, 0));
Qt3DCore::QTransform *topRightTransform = new Qt3DCore::QTransform;
topRightTransform->setTranslation(QVector3D(5, 2, 0));
wrongBlueTransform->setObjectName(QLatin1String("Blue Wrong Transform"));
topRightTransform->setObjectName(QLatin1String("Blue TR Transform"));
Qt3DExtras::QPhongMaterial *blueMaterial = new Qt3DExtras::QPhongMaterial(rootEntity);
blueMaterial->setObjectName(QLatin1String("Blue Material"));
blueMaterial->setDiffuse(Qt::blue);
Qt3DCore::QEntity *leafNode = new Qt3DCore::QEntity(rootEntity);
leafNode->addComponent(mesh);
leafNode->addComponent(blueMaterial);
leafNode->setObjectName(QLatin1String("Blue Leaf"));
// sometimes this can change things
//QCoreApplication::processEvents();
tree1node2->addComponent(wrongBlueTransform);
tree2node2->addComponent(topRightTransform);
tree1node1->setParent(rootEntity);
tree1node2->setParent(tree1node1);
tree1node3->setParent(tree1node2);
tree2node1->setParent(rootEntity);
tree2node2->setParent(tree2node1);
tree2node3->setParent(tree2node2);
leafNode->setParent(tree1node3);
leafNode->setParent(tree2node3);
}
return app.exec();
}
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