- Qt 6.5
- Qt Quick 3D
- Qt Quick 3D Examples and Tutorials
- Hello Qt Quick 3D Example
- Qt Quick 3D | Commercial or GPLv3

# Hello Qt Quick 3D Example

     // Copyright (C) 2020 The Qt Company Ltd.
     // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

     import QtQuick
     import QtQuick.Timeline
     import QtQuick3D
     import HelloExample

     Window {
         id: window
         width: 1280
         height: 720
         visible: true

         View3D {
             id: view
             anchors.fill: parent

             environment: SceneEnvironment {
                 clearColor: "black"
                 backgroundMode: SceneEnvironment.Color
             }

             Node {
                 id: cameraNode

                 PerspectiveCamera {
                     id: camera
                     position: Qt.vector3d(0, 0, 650)
                 }

                 property bool isRotating: false
                 PropertyAnimation on eulerRotation.x {
                     from: 0
                     to: 360
                     duration: 20000
                     loops: Animation.Infinite
                     running: cameraNode.isRotating
                 }

                 Timeline {
                     id: timeline0
                     startFrame: 0
                     endFrame: 1000
                     currentFrame: 0
                     enabled: true

                     SequentialAnimation on currentFrame {
                         NumberAnimation {
                             from: 0
                             to: 500
                             duration: 4000
                         }
                         NumberAnimation {
                             from: 500
                             to: 1000
                             duration: 10000
                             loops: Animation.Infinite
                         }
                     }

                     KeyframeGroup {
                         target: cameraNode
                         property: "isRotating"

                         Keyframe {
                             frame: 0
                             value: false
                         }
                         Keyframe {
                             frame: 500
                             value: true
                         }
                     }

                     KeyframeGroup {
                         target: oldLogo
                         property: "isRotating"

                         Keyframe {
                             frame: 0
                             value: false
                         }
                         Keyframe {
                             frame: 100
                             value: true
                         }
                     }

                     KeyframeGroup {
                         target: camera
                         property: "z"

                         Keyframe {
                             frame: 0
                             value: 2000
                         }
                         Keyframe {
                             frame: 100
                             value: 2000
                         }
                         Keyframe {
                             frame: 400
                             value: 100
                         }
                         Keyframe {
                             frame: 500
                             value: 200
                         }
                         Keyframe {
                             frame: 550
                             value: 200
                         }
                         Keyframe {
                             frame: 700
                             value: 1000
                             easing.type: Easing.OutElastic
                         }
                         Keyframe {
                             frame: 750
                             value: 1000
                         }
                         Keyframe {
                             frame: 800
                             value: 1000
                         }
                         Keyframe {
                             frame: 950
                             value: 200
                             easing.type: Easing.OutElastic
                         }
                         Keyframe {
                             frame: 1000
                             value: 200
                         }

                     }
                 }
             }

             DirectionalLight {
                 eulerRotation.x: 250
                 eulerRotation.y: -30
                 brightness: 1.0
                 ambientColor: "#7f7f7f"
             }

             Model {
                 id: oldLogo
                 property real s: 4.75
                 property real r: 0
                 property bool isRotating: false
                 scale: Qt.vector3d(s, s, s);
                 source: "oldqtlogo.mesh"
                 instancing: ImageInstanceTable {
                     gridSize: 40
                     gridSpacing: 20
                     image: ":/qt_logo.png"
                 }
                 materials: DefaultMaterial { diffuseColor: "white" }
                 NumberAnimation on r {
                     running: oldLogo.isRotating
                     from: 0
                     to: 360
                     duration: 3000
                     loops: Animation.Infinite
                 }
                 onRChanged: rotate(2.5, Qt.vector3d(1, -1, 0), Node.LocalSpace)
             }
         }
     }