t mesh = new THREE.Mesh( sphereGeo, sphereMat );
		mesh.position.set( - sphereRadius - 1, sphereRadius + 2, 0 );
		scene.add( mesh );

	}

	{

		const color = 0xFFFFFF;
		const intensity = 3;
		const light = new THREE.DirectionalLight( color, intensity );
		light.position.set( 0, 10, 0 );
		light.target.position.set( - 5, 0, 0 );
		scene.add( light );
		scene.add( light.target );

	}

	function resizeRendererToDisplaySize( renderer ) {

		const canvas = renderer.domElement;
		const width = canvas.clientWidt