Por que minha animação Three.js é mais lenta no Vue.js?

Estou tentando recriar esta incrível simulação de onda: https://codepen.io/cheekymonkey/pen/vMvYNV, em Vue.js. No entanto, a animação é muito lenta quando eu a recriei no Vue.js

Tentei fazer todas as mesmas funções dos métodos Vue.js e incluir as variáveis ​​na propriedade de dados do componente.

<template>
    <div id="container" style="width:100%; height:100vh;"></div>
</template>

<script>
import * as Three from 'three'
import SimplexNoise from'simplex-noise'

export default {
  name: 'ThreeTest',
  data() {
    return {
      camera: Three.PerspectiveCamera,
      scene: Three.Scene,
      renderer: Three.WebGLRenderer,
      mesh: Three.Mesh,
      noise: SimplexNoise,
      geometry: null,
      factor: 0
    }
  },
  methods: {
    init: function() {
      this.createScene();
      this.createCamera();
      this.createShape();
      this.addSpotlight('#fdffab');
      this.addAmbientLight();
      this.animate();
      window.addEventListener('resize', this.onResize())

    },
    onResize: function() {
      let container = document.getElementById('container');
      this.renderer.setSize(container.clientWidth, container.clientHeight);
      this.camera.aspect = container.clientWidth / container.clientHeight;
      this.camera.updateProjectionMatrix();
    },
    createScene: function() {
      this.scene = new Three.Scene();
      this.renderer = new Three.WebGLRenderer({
        antialias: true,
        alpha: true
      });
      let container = document.getElementById('container');
      this.renderer.setSize(container.clientWidth, container.clientHeight);
      this.renderer.setPixelRatio(window.devicePixelRatio);
      this.renderer.setClearColor(new Three.Color('#fff'));
      //this.render.shadowMap.type = Three.PCFSoftShadowMap;
      this.noise = new SimplexNoise()
      container.appendChild(this.renderer.domElement);
    },
    createCamera: function() {
      this.camera = new Three.PerspectiveCamera(20, container.clientWidth/container.clientHeight, 1, 1000);
      this.camera.position.set(0, 0, 20);
    },
    createShape: function() {
      const seg = 100
      this.geometry = new Three.PlaneGeometry(5, 8, seg, seg)
      const material = new Three.MeshPhysicalMaterial({
        color: '#da0463',
        metalness: 0.6,
        emissive: '#000',
        side: Three.DoubleSide,
        wireframe: true
      })
      this.mesh = new Three.Mesh(this.geometry, material)
      this.mesh.receiveShadow = true
      this.mesh.castShadow = true
      this.mesh.position.set(0, 0, 0)
      this.mesh.rotation.x = -Math.PI / 3
      this.mesh.rotation.z = -Math.PI / 4
      this.scene.add(this.mesh)
    },
    addSpotlight: function(color) {
      const light = new Three.SpotLight(color, 2, 1000)
      light.position.set(0, 0, 30)
      this.scene.add(light)
    },
    addAmbientLight: function() {
      const light = new Three.AmbientLight('#fff', 0.5)
      this.scene.add(light)
    },
    addjustVertices: function() {
      for (let i = 0; i < this.geometry.vertices.length; i++) {
        const vertex = this.geometry.vertices[i]
        const x = vertex.x / 4
        const y = vertex.y / 6
        vertex.z = this.noise.noise2D(x, y + this.factor)
      }
      this.factor += 0.007
      this.geometry.verticesNeedUpdate = true
      this.geometry.computeVertexNormals()
    },
    animate: function() {
        requestAnimationFrame(this.animate);
        this.addjustVertices();
        this.camera.updateProjectionMatrix();
        this.renderer.render(this.scene, this.camera);
    }
  },
  mounted() {
      this.init();
  }
}
</script>

Funciona, como na animação de onda, como deveria, mas é muito mais lento. Não tenho certeza se isso é devido ao Vue.js ou apenas como eu o configurei. Qualquer conselho muito apreciado!

Isso está ocorrendo porque o Vue sob o capô torna cada componente anexado à instância reativo. Reatividade em profundidade . Abra as ferramentas de desenvolvimento e olhe para sua pegada de memória, quando eu executei seu snippet em minha máquina, ele é de aproximadamente 300 MB ao contrário do exemplo do codepen que é de aproximadamente 20 MB.

Quando você console.log(this.scene)vê, são os getters / setters que permitem ao Vue rastrear objetos.

O snippet a seguir puxa os objetos three.js do objeto de dados Vue e os anexa a um objeto estático vue . Este plugin permite que você defina certas variáveis ​​como não reativas.

<template>
    <div id="container" style="width:100%; height:100vh;"></div>
</template>

<script>
import * as Three from 'three'
import SimplexNoise from'simplex-noise'

export default {
  name: 'ThreeTest',
  static(){
    return {
      scene: new Three.Scene(),
      camera: null,
      renderer: Three.WebGLRenderer,
      mesh: new Three.Mesh,
      noise: SimplexNoise,
      factor:0
    }
  },
  mounted() {
    this.init();
  },
  methods: {
    init: function() {
      this.createScene();
      this.createCamera();
      this.createShape();
      this.addSpotlight('#fdffab');
      this.addAmbientLight();
      this.animate();
      window.addEventListener('resize', this.onResize())
    },
    onResize: function() {
      let container = document.getElementById('container');
      this.renderer.setSize(container.clientWidth, container.clientHeight);
      this.camera.aspect = container.clientWidth / container.clientHeight;
      this.camera.updateProjectionMatrix();
    },
    createScene: function() {

      console.log("TCL: this.$options.bigHairyHorseNuts ",this.bigHairyHorseNuts)

      this.renderer = new Three.WebGLRenderer({
        antialias: true,
        alpha: true
      });
      let container = document.getElementById('container');
      this.renderer.setSize(container.clientWidth, container.clientHeight);
      this.renderer.setPixelRatio(window.devicePixelRatio);
      this.renderer.setClearColor(new Three.Color('#fff'));
      //this.render.shadowMap.type = Three.PCFSoftShadowMap;
      this.noise = new SimplexNoise()
      container.appendChild(this.renderer.domElement);
    },
    createCamera: function() {
      this.camera = new Three.PerspectiveCamera(20, container.clientWidth/container.clientHeight, 1, 1000);
      this.camera.position.set(0, 0, 20);
    },
    createShape: function() {
      const seg = 100
      this.geometry = new Three.PlaneGeometry(5, 8, seg, seg)
      const material = new Three.MeshPhysicalMaterial({
        color: '#da0463',
        metalness: 0.6,
        emissive: '#000',
        side: Three.DoubleSide,
        wireframe: true
      })
      this.mesh = new Three.Mesh(this.geometry, material)
      this.mesh.receiveShadow = true
      this.mesh.castShadow = true
      this.mesh.position.set(0, 0, 0)
      this.mesh.rotation.x = -Math.PI / 3
      this.mesh.rotation.z = -Math.PI / 4
      this.scene.add(this.mesh)
    },
    addSpotlight: function(color) {
      const light = new Three.SpotLight(color, 2, 1000)
      light.position.set(0, 0, 30)
      this.scene.add(light)
    },
    addAmbientLight: function() {
      const light = new Three.AmbientLight('#fff', 0.5)
      this.scene.add(light)
    },
    addjustVertices: function() {
      for (let i = 0; i < this.geometry.vertices.length; i++) {
        const vertex = this.geometry.vertices[i]
        const x = vertex.x / 4
        const y = vertex.y / 6
        vertex.z = this.noise.noise2D(x, y + this.factor)
      }
      this.factor += 0.007
      this.geometry.verticesNeedUpdate = true
      this.geometry.computeVertexNormals()
    },
    animate: function() {
        requestAnimationFrame(this.animate);
        this.addjustVertices();
        this.camera.updateProjectionMatrix();
        this.renderer.render(this.scene, this.camera);
    }
  }
}
</script>