    ready = () => this.initMesh();
        }

        class SceneView extends Group {
            constructor() {
                super();

                this.visible = false;

                this.initViews();
            }

            initViews() {
                this.sphere = new Sphere();
                this.add(this.sphere);

                this.balls = new Balls();
                this.add(this.balls);
            }

            // Public methods

            ready = () => Promise.all([
        