vue3 threejs

<template>
  <div class="container" style="height:100%">
    <div id="container"></div>
  </div>
</template>
<script lang='ts' setup>
import { onMounted, onBeforeUnmount, getCurrentInstance } from 'vue'
import type { OrbitControls as oc } from 'three/examples/jsm/controls/OrbitControls.js'
import type {
  AmbientLight,
  AxesHelper,
  Clock,
  DirectionalLight,
  Mesh,
  PerspectiveCamera,
  HemisphereLight,
  OrthographicCamera,
  DirectionalLightHelper,
  HemisphereLightHelper,
  Scene,
  WebGLRenderer
} from 'three'
const { proxy } = getCurrentInstance() as any
const three = proxy.$Three
const OrbitControls = proxy.$OrbitControls

let scene: Scene,
  renderer: WebGLRenderer,
  mesh: Mesh,
  camera: PerspectiveCamera,
  directionalLight: DirectionalLight,
  hemisphereLight: HemisphereLight,
  ambientLight: AmbientLight,
  dhelper: DirectionalLightHelper,
  hHelper: HemisphereLightHelper,
  controls: oc;
onMounted(() => {
  init()
  animate()
  initControls()
  window.addEventListener('resize', windowResize)
})
onBeforeUnmount( () => {
  window.removeEventListener('resize', windowResize)
})
const windowResize = () => {
  camera.aspect = window.innerWidth / window.innerHeight
  camera.updateProjectionMatrix()
  renderer.setSize(window.innerWidth, window.innerHeight)
}
const init = () => {
  const container: HTMLElement | null = document.getElementById('container')
  camera = new three.PerspectiveCamera(70, container!.clientWidth / container!.clientHeight, 0.1, 100)
  const axesHelper = new three.AxesHelper(50)
  const gridHelper = new three.GridHelper(100, 40, 0x007aff, 0xcccccc)
  gridHelper.position.set(0, -1, 0)
  // 移动相机
  camera.position.z = 1
  // 创建场景
  scene = new three.Scene()
  scene.background = new three.Color(0x000000)
  // 创建几何体
  const geometry = new three.BoxGeometry()
  const material = new three.MeshNormalMaterial({ color: 0x007aff })
  // 创建网格
  mesh = new three.Mesh(geometry, material)
  mesh.position.set(10, 0, 0)
  // this.mesh.translateY(12)
  // 添加网格模型
  scene.add(mesh)
  scene.add(axesHelper)
  scene.add(gridHelper)

  // 创建渲染器 - 设置显示窗口大小 antialias// 反锯齿
  renderer = new three.WebGLRenderer({ antialias: true, alpha: true })
  renderer.setSize(container!.clientWidth, container!.clientHeight)
  container!.appendChild(renderer.domElement)
  // renderer.render(scene, camera) // 渲染
}
const initControls = () => {
  controls = new OrbitControls(camera, renderer.domElement)
  console.log(controls)
  // 使动画循环使用时阻尼或自转 意思是否有惯性
  controls.enableDamping = false
  // 是否可以缩放
  controls.enableZoom = true
  // 是否自动旋转
  controls.autoRotate = false
  // 设置相机距离原点的最远距离
  controls.minDistance = 1
  // 设置相机距离原点的最远距离
  controls.maxDistance = 10
  // 是否开启右键拖拽
  controls.enablePan = true
}
const animate = () => {
  requestAnimationFrame(animate)
  mesh.rotation.x += 0.01
  mesh.rotation.y += 0.02
  renderer.render(scene, camera)
}
</script>

<style lang="less" scoped>
#container {
  height: 100%;
  width: 100%;
}
</style>

// main.ts

import * as Three from 'three'
import { OrbitControls } from 'three/examples/jsm/controls/OrbitControls.js'
import { CSS3DRenderer, CSS3DObject } from 'three/examples/jsm/renderers/CSS3DRenderer.js'
app.config.globalProperties.$Three = Three
app.config.globalProperties.$CSS3DObject = CSS3DObject
app.config.globalProperties.$CSS3DRenderer = CSS3DRenderer
app.config.globalProperties.$OrbitControls = OrbitControls