Qt Quick 3D - RuntimeLoader Example
// Copyright (C) 2021 The Qt Company Ltd. // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause import QtQuick import QtQuick.Window import QtQuick.Controls import Qt.labs.platform import Qt.labs.settings import QtQuick3D import QtQuick3D.Helpers import QtQuick3D.AssetUtils Window { visible: true width: 800 height: 600 property url importUrl; View3D { id: view3D anchors.fill: parent environment: SceneEnvironment { backgroundMode: SceneEnvironment.SkyBox lightProbe: Texture { textureData: ProceduralSkyTextureData{} } } camera: helper.orbitControllerEnabled ? orbitCamera : wasdCamera DirectionalLight { eulerRotation: "-30, -20, -40" ambientColor: "#333" } Node { id: orbitCameraNode PerspectiveCamera { id: orbitCamera } } PerspectiveCamera { id: wasdCamera } function resetView() { if (importNode.status === RuntimeLoader.Success) { helper.resetController() } } RandomInstancing { id: instancing instanceCount: 30 position: InstanceRange { property alias boundsDiameter: helper.boundsDiameter from: Qt.vector3d(-3*boundsDiameter, -3*boundsDiameter, -3*boundsDiameter); to: Qt.vector3d(3*boundsDiameter, 3*boundsDiameter, 3*boundsDiameter) } color: InstanceRange { from: "black"; to: "white" } } QtObject { id: helper property real boundsDiameter: 0 property vector3d boundsCenter property vector3d boundsSize property bool orbitControllerEnabled: true function updateBounds(bounds) { boundsSize = Qt.vector3d(bounds.maximum.x - bounds.minimum.x, bounds.maximum.y - bounds.minimum.y, bounds.maximum.z - bounds.minimum.z) boundsDiameter = Math.max(boundsSize.x, boundsSize.y, boundsSize.z) boundsCenter = Qt.vector3d((bounds.maximum.x + bounds.minimum.x) / 2, (bounds.maximum.y + bounds.minimum.y) / 2, (bounds.maximum.z + bounds.minimum.z) / 2 ) console.log("Bounds changed: ", bounds.minimum, bounds.maximum, " center:", boundsCenter, "diameter:", boundsDiameter) wasdController.speed = boundsDiameter / 1000.0 wasdController.shiftSpeed = 3 * wasdController.speed wasdCamera.clipNear = boundsDiameter / 100 wasdCamera.clipFar = boundsDiameter * 10 view3D.resetView() } function resetController() { orbitCameraNode.eulerRotation = Qt.vector3d(0, 0, 0) orbitCameraNode.position = boundsCenter orbitCamera.position = Qt.vector3d(0, 0, 2 * helper.boundsDiameter) orbitCamera.eulerRotation = Qt.vector3d(0, 0, 0) orbitControllerEnabled = true } function switchController(useOrbitController) { if (useOrbitController) { let wasdOffset = wasdCamera.position.minus(boundsCenter) let wasdDistance = wasdOffset.length() let wasdDistanceInPlane = Qt.vector3d(wasdOffset.x, 0, wasdOffset.z).length() let yAngle = Math.atan2(wasdOffset.x, wasdOffset.z) * 180 / Math.PI let xAngle = -Math.atan2(wasdOffset.y, wasdDistanceInPlane) * 180 / Math.PI orbitCameraNode.position = boundsCenter orbitCameraNode.eulerRotation = Qt.vector3d(xAngle, yAngle, 0) orbitCamera.position = Qt.vector3d(0, 0, wasdDistance) orbitCamera.eulerRotation = Qt.vector3d(0, 0, 0) } else { wasdCamera.position = orbitCamera.scenePosition wasdCamera.rotation = orbitCamera.sceneRotation wasdController.focus = true } orbitControllerEnabled = useOrbitController } } RuntimeLoader { id: importNode source: importUrl instancing: instancingButton.checked ? instancing : null onBoundsChanged: helper.updateBounds(bounds) } Model { parent: importNode source: "#Cube" materials: PrincipledMaterial { baseColor: "red" } opacity: 0.2 visible: visualizeButton.checked && importNode.status === RuntimeLoader.Success position: helper.boundsCenter scale: Qt.vector3d(helper.boundsSize.x / 100, helper.boundsSize.y / 100, helper.boundsSize.z / 100) } Rectangle { id: messageBox visible: importNode.status !== RuntimeLoader.Success color: "red" width: parent.width * 0.8 height: parent.height * 0.8 anchors.centerIn: parent radius: Math.min(width, height) / 10 opacity: 0.6 Text { anchors.fill: parent font.pixelSize: 36 text: "Status: " + importNode.errorString + "\nPress \"Import...\" to import a model" color: "white" wrapMode: Text.Wrap horizontalAlignment: Text.AlignHCenter verticalAlignment: Text.AlignVCenter } } } OrbitCameraController { id: orbitController origin: orbitCameraNode camera: orbitCamera enabled: helper.orbitControllerEnabled } WasdController { id: wasdController controlledObject: wasdCamera enabled: !helper.orbitControllerEnabled } Row { RoundButton { id: importButton text: "Import..." onClicked: fileDialog.open() focusPolicy: Qt.NoFocus } RoundButton { id: resetButton text: "Reset view" onClicked: view3D.resetView() focusPolicy: Qt.NoFocus } RoundButton { id: visualizeButton checkable: true text: "Visualize bounds" focusPolicy: Qt.NoFocus } RoundButton { id: instancingButton checkable: true text: "Instancing" focusPolicy: Qt.NoFocus } RoundButton { id: controllerButton text: helper.orbitControllerEnabled ? "Orbit controller" : "WASD controller" onClicked: helper.switchController(!helper.orbitControllerEnabled) focusPolicy: Qt.NoFocus } } FileDialog { id: fileDialog nameFilters: ["glTF files (*.gltf *.glb)", "All files (*)"] onAccepted: importUrl = file Settings { id: fileDialogSettings category: "QtQuick3D.Examples.RuntimeLoader" property alias folder: fileDialog.folder } } }