vue3中使用three.js实现全景视频

可以按照以下步骤来实现全景视频：

1. 安装three.js和vue-threejs插件：

npm install three vue-threejs --save

2. 在Vue组件中引入three.js和vue-threejs插件：

import * as THREE from 'three'
import { VueThreeJS, Object3D } from 'vue-threejs'

3. 在组件中定义场景、相机和渲染器：

export default {
  components: {
    VueThreeJS
  },
  data () {
    return {
      scene: new THREE.Scene(),
      camera: new THREE.PerspectiveCamera(90, window.innerWidth / window.innerHeight, 0.1, 1000),
      renderer: new THREE.WebGLRenderer()
    }
  }
}

4. 在mounted钩子中初始化渲染器并将其添加到DOM中：

mounted () {
  this.renderer.setSize(window.innerWidth, window.innerHeight)
  this.$refs.container.appendChild(this.renderer.domElement)
}

5. 加载全景视频并创建球体展示：

const texture = new THREE.VideoTexture(video)
texture.minFilter = THREE.LinearFilter
texture.format = THREE.RGBFormat

const sphereGeometry = new THREE.SphereGeometry(500, 60, 40)
const sphereMaterial = new THREE.MeshBasicMaterial({ map: texture })
const sphere = new THREE.Mesh(sphereGeometry, sphereMaterial)
sphere.material.side = THREE.BackSide

this.scene.add(sphere)

6. 创建灯光：

const ambientLight = new THREE.AmbientLight(0xffffff)
this.scene.add(ambientLight)

const directionalLight = new THREE.DirectionalLight(0xffffff, 0.5)
directionalLight.position.set(0, 1, 0).normalize()
this.scene.add(directionalLight)

7. 在animate函数中更新场景和相机：

animate () {
  requestAnimationFrame(this.animate)

  this.renderer.render(this.scene, this.camera)
}

完整代码示例：

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

<script>
import * as THREE from 'three'
import { VueThreeJS, Object3D } from 'vue-threejs'

export default {
  components: {
    VueThreeJS
  },
  data () {
    return {
      scene: new THREE.Scene(),
      camera: new THREE.PerspectiveCamera(90, window.innerWidth / window.innerHeight, 0.1, 1000),
      renderer: new THREE.WebGLRenderer()
    }
  },
  mounted () {
    this.renderer.setSize(window.innerWidth, window.innerHeight)
    this.$refs.container.appendChild(this.renderer.domElement)

    const video = document.createElement('video')
    video.src = 'path/to/video.mp4'
    video.autoplay = true
    video.loop = true

    const texture = new THREE.VideoTexture(video)
    texture.minFilter = THREE.LinearFilter
    texture.format = THREE.RGBFormat

    const sphereGeometry = new THREE.SphereGeometry(500, 60, 40)
    const sphereMaterial = new THREE.MeshBasicMaterial({ map: texture })
    const sphere = new THREE.Mesh(sphereGeometry, sphereMaterial)
    sphere.material.side = THREE.BackSide

    this.scene.add(sphere)

    const ambientLight = new THREE.AmbientLight(0xffffff)
    this.scene.add(ambientLight)

    const directionalLight = new THREE.DirectionalLight(0xffffff, 0.5)
    directionalLight.position.set(0, 1, 0).normalize()
    this.scene.add(directionalLight)

    this.camera.position.set(0, 0, 0.1)

    this.animate()
  },
  methods: {
    animate () {
      requestAnimationFrame(this.animate)

      this.renderer.render(this.scene, this.camera)
    }
  }
}
</script>