de: 0,
                speed: ringObj.getOptions().speed
            };

            var gui = new dat.GUI();
            gui.add(params, 'add').onChange(function () {
                if (params.add) {
                    threeLayer.addMesh(ringObj);
                } else {
                    threeLayer.removeMesh(ringObj);
                }
            });
            gui.addColor(params, 'color').name('circle color').onChange(function () {
                material.uniforms.color.value.setStyle(params.co