vue3.0 引用 three.js

• cnpm install three -S
• 在使用的页面 import * as Three from ‘three’
• 使用three绘制最简单正方体

<template>
  <div class="Create">
  </div>
</template>
<script>
import * as Three from 'three'
export default {
  name: 'Create',
  data () {
    return {}
  },
  setup () {
    // 1、创建场景和摄像机
    const scene = new Three.Scene()
    // 2、创建摄像机 PerspectiveCamera('视角', '指定投影窗口长宽比', '从距离摄像机多远开始渲染', '截止多远停止渲染100')
    const camera = new Three.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 2, 1000)

    // 3、创建ThreeJs 渲染器
    const renderer = new Three.WebGLRenderer({ antialias: true })
    // 设置渲染器场景大小
    renderer.setSize(window.innerWidth, window.innerHeight)
    document.body.appendChild(renderer.domElement)

    // 创建几何模型 BoxGeometry('x轴', '轴', 'z轴')
    const geometry = new Three.BoxGeometry(2, 2, 2)

    // 创建纹理贴图
    const texture = new Three.TextureLoader().load(require('../assets/img/bg-01.jpg'))

    // 添加材质
    // const material = new Three.MeshBasicMaterial({ color: 0x00ff00 })
    const material = new Three.MeshBasicMaterial({ map: texture })

    // 创建网格对象
    const cube = new Three.Mesh(geometry, material)
    // 添加到场景中去
    scene.add(cube)

    // 添加帧渲染
    const animate = () => {
      requestAnimationFrame(animate)

      // 网格旋转
      cube.rotation.x += 0.01
      cube.rotation.y += 0.01

      // 渲染场景
      renderer.render(scene, camera)
    }

    animate()
    // 摄影机空间Z轴
    camera.position.z = 5

    // 自适应
    window.addEventListener('resize', () => {
      // 初始化摄像机
      camera.aspect = window.innerWidth / window.innerHeight
      camera.updateProjectionMatrix()

      // 初始化渲染器尺寸
      renderer.setSize(window.innerWidth, window.innerHeight)
    })
  }
}
</script>