Qt Quick 3D - Picking example

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import QtQuick 2.15 import QtQuick.Window 2.14 import QtQuick.Controls 2.14 import QtQuick3D 1.15 Window { visible: true width: 1280 height: 720 title: qsTr("Picking Example") Row { anchors.top: parent.top anchors.horizontalCenter: parent.horizontalCenter spacing: 20 Label { id: pickName color: "#222840" font.pointSize: 14 text: "Last Pick: None" } Label { id: pickPosition color: "#222840" font.pointSize: 14 text: "Screen Position: (0, 0)" } Label { id: uvPosition color: "#222840" font.pointSize: 14 text: "UV Position: (0.00, 0.00)" } Label { id: distance color: "#222840" font.pointSize: 14 text: "Distance: 0.00" } Label { id: scenePosition color: "#222840" font.pointSize: 14 text: "World Position: (0.00, 0.00)" } } View3D { id: view anchors.fill: parent renderMode: View3D.Underlay PointLight { x: -200 y: 200 z: 300 quadraticFade: 0 brightness: 150 } PerspectiveCamera { z: 500 } environment: SceneEnvironment { clearColor: "#848895" backgroundMode: SceneEnvironment.Color } Model { id: cubeModel objectName: "Cube" source: "#Cube" pickable: true property bool isPicked: false scale.x: 1.5 scale.y: 2 scale.z: 1.5 materials: DefaultMaterial { diffuseColor: cubeModel.isPicked ? "#41cd52" : "#09102b" specularAmount: 0.25 specularRoughness: 0.2 roughnessMap: Texture { source: "maps/roughness.jpg" } } SequentialAnimation on eulerRotation { running: !cubeModel.isPicked loops: Animation.Infinite PropertyAnimation { duration: 2500 from: Qt.vector3d(0, 0, 0) to: Qt.vector3d(360, 360, 360) } } } Model { id: coneModel objectName: "Cone" source: "#Cone" pickable: true property bool isPicked: false x: 200 z: 100 scale.x: 2 scale.y: 1.5 scale.z: 2 materials: DefaultMaterial { diffuseColor: coneModel.isPicked ? "#53586b" : "#21be2b" specularAmount: 1 specularRoughness: 0.1 roughnessMap: Texture { source: "maps/roughness.jpg" } } SequentialAnimation on eulerRotation { running: !coneModel.isPicked loops: Animation.Infinite PropertyAnimation { duration: 10000 from: Qt.vector3d(0, 0, 0) to: Qt.vector3d(-360, 360, 0) } } } Model { id: sphereModel objectName: "Sphere" source: "#Sphere" pickable: true property bool isPicked: false x: -100 y: -100 z: -100 scale.x: 5 scale.y: 3 scale.z: 1 materials: DefaultMaterial { diffuseColor: sphereModel.isPicked ? "#17a81a" : "#9d9faa" specularAmount: 0.25 specularRoughness: 0.2 roughnessMap: Texture { source: "maps/roughness.jpg" } } SequentialAnimation on eulerRotation.x { running: !sphereModel.isPicked loops: Animation.Infinite PropertyAnimation { duration: 5000 from: 0 to: 360 } } } } MouseArea { anchors.fill: view onClicked: { // Get screen coordinates of the click pickPosition.text = "Screen Position: (" + mouse.x + ", " + mouse.y + ")" var result = view.pick(mouse.x, mouse.y); if (result.objectHit) { var pickedObject = result.objectHit; // Toggle the isPicked property for the model pickedObject.isPicked = !pickedObject.isPicked; // Get picked model name pickName.text = "Last Pick: " + pickedObject.objectName; // Get other pick specifics uvPosition.text = "UV Position: (" + result.uvPosition.x.toFixed(2) + ", " + result.uvPosition.y.toFixed(2) + ")"; distance.text = "Distance: " + result.distance.toFixed(2); scenePosition.text = "World Position: (" + result.scenePosition.x.toFixed(2) + ", " + result.scenePosition.y.toFixed(2) + ")"; } else { pickName.text = "Last Pick: None"; } } } }