iLight.matrixAutoUpdate = false;
			hemiLight.updateMatrix();
			scene.add( hemiLight );

		 	const dirLight = new THREE.DirectionalLight( 0xffffff, 0.8 );
			dirLight.position.set( - 4, 5, - 5 );
			dirLight.matrixAutoUpdate = false;
			dirLight.updateMatrix();
			dirLight.castShadow = true;
			dirLight.shadow.camera.top = 4;
			dirLight.shadow.camera.bottom = - 4;
			dirLight.shadow.camera.left = - 4;
			dirLight.shadow.camera.right = 4;
			dirLight.shadow.camera.near = 0.1;
			dirLight.shadow.camera.far 