如何使用THREE.js VREffect渲染多个场景

<script src="path/to/three.js"></script>
<script src="path/to/VREffect.js"></script>

var scene1 = new THREE.Scene();
var renderer1 = new THREE.WebGLRenderer();

var scene2 = new THREE.Scene();
var renderer2 = new THREE.WebGLRenderer();

var vrEffect1 = new THREE.VREffect(renderer1);
var vrEffect2 = new THREE.VREffect(renderer2);

vrEffect1.setVRDisplay(vrDisplay1);
vrEffect2.setVRDisplay(vrDisplay2);

function animate() {
  requestAnimationFrame(animate);
  
  // 渲染第一个场景
  vrEffect1.render(scene1, camera1);
  
  // 渲染第二个场景
  vrEffect2.render(scene2, camera2);
}
animate();