       id: "custom_model_car",
                type: "custom",
                onAdd: function (map, gl) {
                    CarMode(map, gl);
                },
                render: function (gl, matrix) {
                    threebox.update(Date.now(), "mbx");
                }
            });
        }
        function CarMode(map, gl) {
            window.threebox = new Threebox(map, gl);
            threebox.setupDefaultLights();

            var loader = new THREE.GLTFLoader();

            loade