Qt Quick 3D - Custom Morphing Animation

 // Copyright (C) 2021 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

 import QtQuick
 import QtQuick3D
 import Example

 Window {
     id: window
     visible: true
     width: 1366
     height: 768
     title: qsTr("Custom Morphing Example")

     View3D {
         id: view
         anchors.fill: parent

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

         DirectionalLight {
             eulerRotation.x: -10
             NumberAnimation on eulerRotation.y {
                 from: 0
                 to: 360
                 duration: 17000
                 loops: Animation.Infinite
             }
             ambientColor: Qt.rgba(0.3, 0.3, 0.3, 1.0)
         }

         PointLight {
             position: Qt.vector3d(-15, 10, 15)
         }

         PerspectiveCamera {
             id: camera
             position.z: 25.0
             position.y: 10.0
             eulerRotation.x: -30
             clipNear: 1.0
             clipFar: 40.0
         }

         PrincipledMaterial {
             id: material
             baseColor: "#af4f1f"
             roughness: 0.3
             specularAmount: 0.6
         }

         MorphTarget {
             id: morphtarget
             attributes: MorphTarget.Position | MorphTarget.Normal | MorphTarget.Color
             SequentialAnimation on weight {
                 PauseAnimation { duration: 1000 }
                 NumberAnimation { from: 0; to: 1; duration: 4000 }
                 PauseAnimation { duration: 1000 }
                 NumberAnimation { from: 1; to: 0; duration: 4000 }
                 loops: Animation.Infinite
             }
         }

         Model {
             y: -1
             geometry: MorphGeometry {}
             morphTargets: [ morphtarget ]
             materials: [ material ]
         }
     }
 }