trols.target.set( 0, 0, 0 );
		controls.update();

	}

	renderer.shadowMap.enabled = true;

	const hemiLight = new THREE.HemisphereLight( 0xffffff, 0xffffff, 2 );
	hemiLight.color.setHSL( 0.6, 1, 0.5 );
	hemiLight.groundColor.setHSL( 0.095, 1, 0.5 );
	hemiLight.position.set( 0, 50, 0 );
	scene.add( hemiLight );

	if ( showHelpers ) {

		const hemiLightHelper = new THREE.HemisphereLightHelper( hemiLight, 10 );
		scene.add( hemiLightHelper );

	}

	const dirLight = new THREE.DirectionalLight( 0xffffff, 3 );
	