od)/g.test( navigator.userAgent ) ) {

			const scene = document.getElementById( 'scene' );

			scene.style.width = getComputedStyle( scene ).width;
			scene.style.height = getComputedStyle( scene ).height;
			scene.setAttribute( 'scrolling', 'no' );

		}

		</script>

		<h2>代码示例</h2>

		<code>
		class CustomSinCurve extends THREE.Curve {

			constructor( scale = 1 ) {

				super();

				this.scale = scale;

			}

			getPoint( t, optionalTarget = new THREE.Vector3() ) {

				const tx = t * 3 - 1.5;
