ions = {
			getMaterial: () => {
				directionalLight.getWorldDirection(helpVector).toArray(planarShadowMaterial.uniforms.lightDir);
				return planarShadowMaterial;
			},
			ifRender: ({ object }) => {
				return object.planarShadow;
			}
		};

		function setLightPosition(angle) {
			directionalLight.position.x = -Math.sin(angle / 180 * Math.PI) * 100;
			directionalLight.position.y = 100;
			directionalLight.position.z = -Math.cos(angle / 180 * Math.PI) * 100;
			directionalLight.lookAt(new t3d.Vector3(0,