var createScene = async function () {
    var scene = new BABYLON.Scene(engine);

    var light = new BABYLON.HemisphericLight("light", new BABYLON.Vector3(0, 1, 0), scene);
    light.intensity = 0.7;

    await BABYLON.Tools.LoadScriptAsync("https://ar.babylonjs.com/babylonAr.playground.js");

    var camera = await BabylonAR.ObjectTrackerCamera.CreateAsync("camera", scene);

    const tracker = await BabylonAR.ArUcoMetaMarkerObjectTracker.CreateAsync(camera.videoTexture, scene);
    const trackedNode = await tracker.addTrackableObjectAsync(0, 1, 2, 3, 5);
    var box = BABYLON.MeshBuilder.CreateBox("box", { size: 5.0 }, scene);
    box.parent = trackedNode;
    box.position.z += 2.5;
    tracker.startTracking();

    return scene;
};