Qt Quick 3D - View3D Example

 // Copyright (C) 2019 The Qt Company Ltd.
 // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

 import QtQuick
 import QtQuick3D
 import QtQuick.Controls

 Window {
     id: window
     width: 1280
     height: 720
     visible: true
     title: "View3Ds with Different Cameras"
     color: "#848895"

     // The root scene
     Node {
         id: standAloneScene

         DirectionalLight {
             ambientColor: Qt.rgba(0.5, 0.5, 0.5, 1.0)
             brightness: 1.0
             eulerRotation.x: -25
         }

         Model {
             source: "#Cube"
             y: -104
             scale: Qt.vector3d(3, 3, 0.1)
             eulerRotation.x: -90
             materials: [
                 DefaultMaterial {
                     diffuseColor: Qt.rgba(0.8, 0.8, 0.8, 1.0)
                 }
             ]
         }

         Model {
             source: "teapot.mesh"
             y: -100
             scale: Qt.vector3d(50, 50, 50)
             materials: [
                 PrincipledMaterial {
                     baseColor: "#41cd52"
                     metalness: 0.0
                     roughness: 0.1
                     opacity: 1.0
                 }
             ]

             PropertyAnimation on eulerRotation.y {
                 loops: Animation.Infinite
                 duration: 5000
                 to: 0
                 from: -360
             }
         }

         // The predefined cameras. They have to be part of the scene, i.e. inside the root node.
         // Animated perspective camera
         Node {
             PerspectiveCamera {
                 id: cameraPerspectiveOne
                 z: 600
             }

             PropertyAnimation on eulerRotation.x {
                 loops: Animation.Infinite
                 duration: 5000
                 to: -360
                 from: 0
             }
         }

         // Stationary perspective camera
         PerspectiveCamera {
             id: cameraPerspectiveTwo
             z: 600
         }

         // Second animated perspective camera
         Node {
             PerspectiveCamera {
                 id: cameraPerspectiveThree
                 x: 500
                 eulerRotation.y: 90
             }
             PropertyAnimation on eulerRotation.y {
                 loops: Animation.Infinite
                 duration: 5000
                 to: 0
                 from: -360
             }
         }

         // Stationary orthographic camera viewing from the top
         OrthographicCamera {
             id: cameraOrthographicTop
             y: 600
             eulerRotation.x: -90
         }

         // Stationary orthographic camera viewing from the front
         OrthographicCamera {
             id: cameraOrthographicFront
             z: 600
         }

         // Stationary orthographic camera viewing from left
         OrthographicCamera {
             id: cameraOrthographicLeft
             x: -600
             eulerRotation.y: -90
         }
     }

     // The views
     Rectangle {
         id: topLeft
         anchors.top: parent.top
         anchors.left: parent.left
         width: parent.width * 0.5
         height: parent.height * 0.5
         color: "#848895"
         border.color: "black"

         View3D {
             id: topLeftView
             anchors.fill: parent
             importScene: standAloneScene
             camera: cameraOrthographicFront
         }

         Label {
             text: "Front"
             anchors.top: parent.top
             anchors.left: parent.left
             anchors.margins: 10
             color: "#222840"
             font.pointSize: 14
         }
     }

     Rectangle {
         id: topRight
         anchors.top: parent.top
         anchors.right: parent.right
         width: parent.width * 0.5
         height: parent.height * 0.5
         color: "transparent"
         border.color: "black"

         Label {
             text: "Perspective"
             anchors.top: parent.top
             anchors.right: parent.right
             anchors.margins: 10
             color: "#222840"
             font.pointSize: 14
         }

         View3D {
             id: topRightView
             anchors.top: parent.top
             anchors.right: parent.right
             anchors.left: parent.left
             anchors.bottom: parent.bottom;
             camera: cameraPerspectiveOne
             importScene: standAloneScene
             renderMode: View3D.Underlay

             environment: SceneEnvironment {
                 clearColor: window.color
                 backgroundMode: SceneEnvironment.Color
             }
         }

         Row {
             id: controlsContainer
             anchors.bottom: parent.bottom
             anchors.horizontalCenter: parent.horizontalCenter
             spacing: 10
             padding: 10

             RoundButton {
                 text: "Camera 1"
                 highlighted: topRightView.camera == cameraPerspectiveOne
                 onClicked: {
                     topRightView.camera = cameraPerspectiveOne
                 }
             }
             RoundButton {
                 text: "Camera 2"
                 highlighted: topRightView.camera == cameraPerspectiveTwo
                 onClicked: {
                     topRightView.camera = cameraPerspectiveTwo
                 }
             }
             RoundButton {
                 text: "Camera 3"
                 highlighted: topRightView.camera == cameraPerspectiveThree
                 onClicked: {
                     topRightView.camera = cameraPerspectiveThree
                 }
             }
         }
     }

     Rectangle {
         id: bottomLeft
         anchors.bottom: parent.bottom
         anchors.left: parent.left
         width: parent.width * 0.5
         height: parent.height * 0.5
         color: "#848895"
         border.color: "black"

         View3D {
             id: bottomLeftView
             anchors.fill: parent
             importScene: standAloneScene
             camera: cameraOrthographicTop
         }

         Label {
             text: "Top"
             anchors.top: parent.top
             anchors.left: parent.left
             anchors.margins: 10
             color: "#222840"
             font.pointSize: 14
         }
     }

     Rectangle {
         id: bottomRight
         anchors.bottom: parent.bottom
         anchors.right: parent.right
         width: parent.width * 0.5
         height: parent.height * 0.5
         color: "#848895"
         border.color: "black"

         View3D {
             id: bottomRightView
             anchors.fill: parent
             importScene: standAloneScene
             camera: cameraOrthographicLeft
         }

         Label {
             text: "Left"
             anchors.top: parent.top
             anchors.right: parent.right
             anchors.margins: 10
             color: "#222840"
             font.pointSize: 14
         }
     }
 }