mirror of https://github.com/qt/qt3d.git
146 lines
5.1 KiB
C++
146 lines
5.1 KiB
C++
// Copyright (C) 2016 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 <QPropertyAnimation>
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#include <Qt3DInput/QInputAspect>
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#include <Qt3DRender/qcamera.h>
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#include <Qt3DExtras/qcylindermesh.h>
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#include <Qt3DExtras/QPhongMaterial>
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#include <Qt3DExtras/QMorphPhongMaterial>
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#include <Qt3DAnimation/QVertexBlendAnimation>
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#include <Qt3DAnimation/QMorphTarget>
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#include <Qt3DExtras/QCylinderGeometry>
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#include <Qt3DCore/qentity.h>
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#include <Qt3DCore/qtransform.h>
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#include <Qt3DCore/qaspectengine.h>
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#include <Qt3DExtras/qt3dwindow.h>
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#include <Qt3DExtras/QForwardRenderer>
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#include <Qt3DExtras/qfirstpersoncameracontroller.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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// Root entity
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Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity();
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// Camera
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Qt3DRender::QCamera *camera = view.camera();
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camera->lens()->setPerspectiveProjection(45.0f, 16.0f/9.0f, 0.1f, 1000.0f);
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camera->setPosition(QVector3D(0, 2, 20.0f));
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camera->setUpVector(QVector3D(0, 1, 0));
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camera->setViewCenter(QVector3D(0, 0, 0));
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// For camera controls
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Qt3DExtras::QFirstPersonCameraController *cameraController
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= new Qt3DExtras::QFirstPersonCameraController(rootEntity);
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cameraController->setCamera(camera);
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view.defaultFrameGraph()->setCamera(camera);
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view.defaultFrameGraph()->setClearColor(Qt::gray);
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// Transform for mesh
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Qt3DCore::QTransform *transform = new Qt3DCore::QTransform;
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transform->setTranslation(QVector3D(0,-1,-1));
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// Base mesh to morph
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Qt3DExtras::QCylinderMesh *mesh = new Qt3DExtras::QCylinderMesh(rootEntity);
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mesh->setRings(6);
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mesh->setSlices(20);
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// create morh targets from geometry
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Qt3DExtras::QCylinderGeometry *cylinder1 = new Qt3DExtras::QCylinderGeometry(rootEntity);
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Qt3DExtras::QCylinderGeometry *cylinder2 = new Qt3DExtras::QCylinderGeometry(rootEntity);
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Qt3DExtras::QCylinderGeometry *cylinder3 = new Qt3DExtras::QCylinderGeometry(rootEntity);
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cylinder1->setRings(6);
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cylinder1->setSlices(20);
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cylinder1->setLength(2.0f);
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cylinder1->setRadius(1.0f);
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cylinder2->setRings(6);
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cylinder2->setSlices(20);
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cylinder2->setLength(1.0f);
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cylinder2->setRadius(5.0f);
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cylinder3->setRings(6);
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cylinder3->setSlices(20);
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cylinder3->setLength(9.0f);
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cylinder3->setRadius(1.0f);
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QStringList attributes;
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attributes.push_back(Qt3DCore::QAttribute::defaultPositionAttributeName());
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attributes.push_back(Qt3DCore::QAttribute::defaultNormalAttributeName());
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const QList<Qt3DAnimation::QMorphTarget*> morphTargets
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= { Qt3DAnimation::QMorphTarget::fromGeometry(cylinder1, attributes),
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Qt3DAnimation::QMorphTarget::fromGeometry(cylinder2, attributes),
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Qt3DAnimation::QMorphTarget::fromGeometry(cylinder3, attributes),
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Qt3DAnimation::QMorphTarget::fromGeometry(cylinder1, attributes) };
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Qt3DAnimation::QVertexBlendAnimation *animation = new Qt3DAnimation::QVertexBlendAnimation;
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const QList<float> times = { 0.0f, 5.0f, 8.0f, 12.0f };
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animation->setTargetPositions(times);
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animation->setTarget(mesh);
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animation->setMorphTargets(morphTargets);
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// Material
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Qt3DExtras::QMorphPhongMaterial *material = new Qt3DExtras::QMorphPhongMaterial(rootEntity);
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material->setDiffuse(Qt::red);
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QObject::connect(animation, &Qt3DAnimation::QVertexBlendAnimation::interpolatorChanged,
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material, &Qt3DExtras::QMorphPhongMaterial::setInterpolator);
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// Cylinder
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Qt3DCore::QEntity *morphingEntity = new Qt3DCore::QEntity(rootEntity);
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morphingEntity->addComponent(mesh);
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morphingEntity->addComponent(transform);
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morphingEntity->addComponent(material);
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// Cylinder shape data
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Qt3DExtras::QCylinderMesh *cylinderMesh = new Qt3DExtras::QCylinderMesh();
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cylinderMesh->setRadius(1);
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cylinderMesh->setLength(3);
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cylinderMesh->setRings(100);
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cylinderMesh->setSlices(20);
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// Transform for cylinder
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Qt3DCore::QTransform *cylinderTransform = new Qt3DCore::QTransform;
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cylinderTransform->setScale(0.5f);
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cylinderTransform->setRotation(QQuaternion::fromAxisAndAngle(QVector3D(1, 0, 0), 45.0f));
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// Material
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Qt3DExtras::QPhongMaterial *cylinderMaterial = new Qt3DExtras::QPhongMaterial(rootEntity);
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cylinderMaterial->setDiffuse(Qt::red);
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// Cylinder
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Qt3DCore::QEntity *cylinder = new Qt3DCore::QEntity(rootEntity);
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cylinder->addComponent(cylinderMesh);
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cylinder->addComponent(cylinderTransform);
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cylinder->addComponent(cylinderMaterial);
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QPropertyAnimation* anim = new QPropertyAnimation(animation);
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anim->setDuration(5000);
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anim->setEndValue(QVariant::fromValue(12.0f));
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anim->setStartValue(QVariant::fromValue(0.0f));
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anim->setLoopCount(-1);
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anim->setTargetObject(animation);
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anim->setPropertyName("position");
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anim->start();
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// Set root object of the scene
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view.setRootEntity(rootEntity);
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view.show();
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return app.exec();
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}
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