var prepareCamera = function(scene, camera = null) {
    if(camera == null) scene.createDefaultCamera(true);

    // Enable camera's behaviors
    camera.useFramingBehavior = true;

    var framingBehavior = camera.getBehaviorByName("Framing");
    framingBehavior.framingTime = 0;
    framingBehavior.elevationReturnTime = -1;

    if (scene.meshes.length) {
        camera.lowerRadiusLimit = null;
        var worldExtends = scene.getWorldExtends(function (mesh) {
            return mesh.isVisible && mesh.isEnabled();
        });
        framingBehavior.zoomOnBoundingInfo(worldExtends.min, worldExtends.max);
    }

    camera.pinchPrecision = 200 / camera.radius;
    camera.upperRadiusLimit = 5 * camera.radius;

    console.log(camera.upperRadiusLimit);

    camera.wheelDeltaPercentage = 0.01;
    camera.pinchDeltaPercentage = 0.01;

    camera.alpha = BABYLON_globalSettings.cameraAlpha;
    camera.beta = BABYLON_globalSettings.cameraBeta;
}

var setCameraDefaultAlphaBeta = function(camera) {
    camera.alpha = BABYLON_globalSettings.cameraAlpha;
    camera.beta = BABYLON_globalSettings.cameraBeta;
}

var prepareLighting = function(scene, skyBoxPath = "") {

    var hemi = new BABYLON.HemisphericLight("HemiLight", new BABYLON.Vector3(0, 1, 0), scene);
    var light = new BABYLON.PointLight("Omni", new BABYLON.Vector3(10, 50, 50), scene);
    light.intensity = 1.0;

    if (skyBoxPath != "" && !scene.environmentTexture) {
        var skybox = BABYLON.Mesh.CreateBox("skyBox", 333.0, scene);
        var skyboxMaterial = new BABYLON.StandardMaterial("skyBox", scene);
        skyboxMaterial.backFaceCulling = false;
        skyboxMaterial.reflectionTexture = new BABYLON.CubeTexture(skyBoxPath, scene);
        skyboxMaterial.reflectionTexture.coordinatesMode = BABYLON.Texture.SKYBOX_MODE;
        skyboxMaterial.diffuseColor = new BABYLON.Color3(0, 0, 0);
        skyboxMaterial.specularColor = new BABYLON.Color3(0, 0, 0);
        skyboxMaterial.disableLighting = true;
        skybox.material = skyboxMaterial;

        // Takes very long to load?
        //scene.environmentTexture = skyboxMaterial.reflectionTexture;
    }
}

var createScene = function () {
    // This creates a basic Babylon Scene object (non-mesh)
    var scene = new BABYLON.Scene(engine);

    // This creates and positions a free camera (non-mesh)
    var camera = new BABYLON.FreeCamera("camera1", new BABYLON.Vector3(0, 5, -10), scene);

    //  var assetsManager = new BABYLON.AssetsManager(scene);
	// var meshTask = assetsManager.addMeshTask("skull task", "", "https://raw.githubusercontent.com/RaggarDK/Baby/baby/", "he4.babylon");

    BABYLON.SceneLoader.LoadAssetContainerAsync("Scenes/",  "BoomBox.glb", scene).then(function (container) {
        container.addAllToScene();
        prepareCamera(scene, camera);
        prepareLighting(scene);

        mainCamera.attachControl(canvas, false);
        setCameraDefaultAlphaBeta(camera);
    });

	// meshTask.onSuccess = function (task) {
    //     // Enable camera's behaviors
    //    prepareCamera(scene, camera);
    //     prepareLighting(scene);

    //     mainCamera.attachControl(canvas, false);
    //     setCameraDefaultAlphaBeta(camera);
    // }

    return scene;
};