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50
51#include <QGuiApplication>
52
53#include <Qt3DInput/QInputAspect>
54
55#include <Qt3DRender/qcamera.h>
56#include <Qt3DRender/qcameralens.h>
57#include <Qt3DExtras/qcylindermesh.h>
58#include <Qt3DRender/qmesh.h>
59#include <Qt3DRender/qtechnique.h>
60#include <Qt3DExtras/qphongmaterial.h>
61#include <Qt3DRender/qeffect.h>
62#include <Qt3DRender/qtexture.h>
63#include <Qt3DRender/qrenderpass.h>
64#include <Qt3DRender/qrenderaspect.h>
65#include <Qt3DExtras/qforwardrenderer.h>
66
67#include <Qt3DCore/qentity.h>
68#include <Qt3DCore/qtransform.h>
69#include <Qt3DCore/qaspectengine.h>
70
71#include <Qt3DExtras/qt3dwindow.h>
72#include <Qt3DExtras/qorbitcameracontroller.h>
73
74int main(int argc, char **argv)
75{
76 QGuiApplication app(argc, argv);
77 Qt3DExtras::Qt3DWindow view;
78
79 // Root entity
80 Qt3DCore::QEntity *rootEntity = new Qt3DCore::QEntity();
81
82 // Camera
83 Qt3DRender::QCamera *camera = view.camera();
84 camera->lens()->setPerspectiveProjection(fieldOfView: 45.0f, aspect: 16.0f/9.0f, nearPlane: 0.1f, farPlane: 1000.0f);
85 camera->setPosition(QVector3D(0, 0, 20.0f));
86 camera->setUpVector(QVector3D(0, 1, 0));
87 camera->setViewCenter(QVector3D(0, 0, 0));
88
89 // For camera controls
90 Qt3DExtras::QOrbitCameraController *cameraController = new Qt3DExtras::QOrbitCameraController(rootEntity);
91 cameraController->setCamera(camera);
92
93 // Cylinder shape data
94 Qt3DExtras::QCylinderMesh *mesh = new Qt3DExtras::QCylinderMesh();
95 mesh->setRadius(1);
96 mesh->setLength(3);
97 mesh->setRings(100);
98 mesh->setSlices(20);
99
100 // Transform for cylinder
101 Qt3DCore::QTransform *transform = new Qt3DCore::QTransform;
102 transform->setScale(1.5f);
103 transform->setRotation(QQuaternion::fromAxisAndAngle(axis: QVector3D(1, 0, 0), angle: 45.0f));
104
105 // Material
106 Qt3DExtras::QPhongMaterial *material = new Qt3DExtras::QPhongMaterial(rootEntity);
107 material->setDiffuse(Qt::red);
108
109 // Cylinder
110 Qt3DCore::QEntity *cylinder = new Qt3DCore::QEntity(rootEntity);
111 cylinder->addComponent(comp: mesh);
112 cylinder->addComponent(comp: transform);
113 cylinder->addComponent(comp: material);
114
115 // Set root object of the scene
116 view.setRootEntity(rootEntity);
117 view.show();
118
119 return app.exec();
120}
121

source code of qt3d/tests/manual/cylinder-cpp/main.cpp