main.qml Example File | Qt 3D 5.12.10

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- Qt 3D: Scene2D QML Example
- main.qml Example File
- Qt 5.12.10 Reference Documentation

# main.qml Example File

scene2d/main.qml

     /****************************************************************************
     **
     ** Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
     ** Contact: https://www.qt.io/licensing/
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     ** This file is part of the Qt3D module of the Qt Toolkit.
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     import Qt3D.Core 2.9
     import Qt3D.Render 2.9
     import Qt3D.Extras 2.9
     import Qt3D.Input 2.0

     import QtQuick 2.0
     import QtQuick.Scene2D 2.9
     import QtQuick.Controls 1.4
     import QtQuick.Layouts 1.2

     Entity {
         id: sceneRoot

         Camera {
             id: camera
             projectionType: CameraLens.PerspectiveProjection
             position: Qt.vector3d( 0.0, 0.0, 20 )
         }

         components: [
             RenderSettings {
                 activeFrameGraph: ForwardRenderer {
                     camera: camera
                     clearColor: "white"
                 }
                 pickingSettings.pickMethod: PickingSettings.TrianglePicking
             },
             InputSettings {}
         ]

         Entity {
             id: logoEntity

             Transform {
                 id: logoTransform
                 scale: 1
                 translation: Qt.vector3d( 0, 0, logoControls.logoCentreZ )
                 rotation: fromEulerAngles( logoControls.rotationX,
                                            logoControls.rotationY,
                                            logoControls.rotationZ )
             }

             Mesh {
                 id: logoMesh
                 source: "Qt_logo.obj"
             }

             PhongMaterial {
                 id: logoMaterial
                 diffuse: Qt.rgba( logoControls.colorR/255,
                                   logoControls.colorG/255,
                                   logoControls.colorB/255, 1.0 )
                 ambient: Qt.rgba( 0.1, 0.1, 0.1, 1.0 )
                 shininess: logoControls.shininess
             }

             components: [ logoTransform, logoMesh, logoMaterial ]
         }

         Entity {
             id: cube

             components: [cubeTransform, cubeMaterial, cubeMesh, cubePicker]

             property real rotationAngle: 0

             Behavior on rotationAngle {
                 enabled: logoControls.enabled
                 RotationAnimation {
                     direction: RotationAnimation.Shortest
                     duration: 450
                 }
             }

             RotationAnimation on rotationAngle {
                 running: !logoControls.enabled
                 loops: Animation.Infinite
                 from: 0; to: 360
                 duration: 4000
                 onStopped: cube.rotationAngle = 0
             }

             Transform {
                 id: cubeTransform
                 translation: Qt.vector3d(2, 0, 10)
                 scale3D: Qt.vector3d(1, 4, 1)
                 rotation: fromAxisAndAngle(Qt.vector3d(0,1,0), cube.rotationAngle)
             }

             CuboidMesh {
                 id: cubeMesh
             }

             ObjectPicker {
                 id: cubePicker
                 hoverEnabled: true
                 dragEnabled: true

                 // Explicitly require a middle click to have the Scene2D grab the mouse
                 // events from the picker
                 onPressed: {
                     if (pick.button === PickEvent.MiddleButton) {
                         qmlTexture.mouseEnabled = !qmlTexture.mouseEnabled
                         logoControls.enabled = !logoControls.enabled
                     }
                 }
             }

             TextureMaterial {
                 id: cubeMaterial
                 texture: offscreenTexture
             }

             Scene2D {
                 id: qmlTexture
                 output: RenderTargetOutput {
                     attachmentPoint: RenderTargetOutput.Color0
                     texture: Texture2D {
                         id: offscreenTexture
                         width: 256
                         height: 1024
                         format: Texture.RGBA8_UNorm
                         generateMipMaps: true
                         magnificationFilter: Texture.Linear
                         minificationFilter: Texture.LinearMipMapLinear
                         wrapMode {
                             x: WrapMode.ClampToEdge
                             y: WrapMode.ClampToEdge
                         }
                     }
                 }

                 entities: [ cube ]
                 mouseEnabled: false

                 LogoControls {
                     id: logoControls
                     width: offscreenTexture.width
                     height: offscreenTexture.height
                 }
             }
         }
     }