angular – requestAnimationFrame只被调用一次

我只能看到这一点.

没有旋转动画.我在下面分享我的代码.

home.html的

<ion-header>
  <ion-navbar>
    <ion-title>
      Ionic Blank
    </ion-title>
  </ion-navbar>
</ion-header>

<ion-content>
  <div #webgloutput></div>
</ion-content>

home.ts

import { Component,ViewChild,ElementRef } from '@angular/core';
import { NavController } from 'ionic-angular';

import * as THREE from 'three';


@Component({
  selector: 'page-home',templateUrl: 'home.html'
})
export class HomePage {
  @ViewChild('webgloutput') webgloutput: ElementRef;


  private renderer: any;
  private scene: any;
  private camera: any;
  private cube: any;

  constructor(public navCtrl: NavController) {
  }

  ngOnInit() {
    this.initThree();
  }

  initThree() {
    this.scene = new THREE.Scene();
    this.camera = new THREE.PerspectiveCamera(75,window.innerWidth / window.innerHeight,0.1,1000);

    this.renderer = new THREE.WebGLRenderer();
    this.renderer.setSize( window.innerWidth,window.innerHeight );
    this.webgloutput.nativeElement.appendChild(this.renderer.domElement);

    let geometry = new THREE.BoxGeometry(1,1,1);

    let material = new THREE.MeshBasicMaterial({ color: 0x00ff00});
    this.cube = new THREE.Mesh(geometry,material);
    this.scene.add(this.cube);
    this.camera.position.z = 5;

    this.render();
  }


  render() {
    console.log("render called");
    requestAnimationFrame(() => this.render);

    this.cube.rotation.x += 0.5;
    this.cube.rotation.y += 0.5;
    this.renderer.render(this.scene,this.camera);
  }

}