three.js跟着教程实现VR效果（四）

参照教程：https://juejin.cn/post/6973865268426571784（作者：大帅老猿）

1.WebGD3D引擎用three.js
（1）使用立方体6面图 camera放到立方体的中间 like “回” 让贴图向内翻转
（2）使用球体（sphere）实现需要一张全景图片贴到球体上其他同上 “回” 反贴进入球体

2.css3D 更轻量的3D引擎 css3d-engine 只有14kb 用div+css来搭建3维场景比较容易添加信息点（标签点击事件那种）

3.图片信息点多高清图不占地儿的解决方案 pano2vr
要花钱买是一个所见即所得的全景VR制作软件可以直接输出HTML5静态网页

按照大佬的教程我实现的效果
在这里插入图片描述

import * as THREE from '../../build/three.module.js';
    window.THREE = THREE;

    import {OrbitControls} from 'https://threejsfundamentals.org/threejs/resources/threejs/r122/examples/jsm/controls/OrbitControls.js';


    // 1. 创建渲染器,指定渲染的分辨率和尺寸,然后添加到body中
    const renderer = new THREE.WebGLRenderer({ antialias: true });
    renderer.pixelRatio = window.devicePixelRatio;
    renderer.setSize(window.innerWidth, window.innerHeight);
    document.body.append(renderer.domElement);


    // 2. 创建场景
    const scene = new THREE.Scene();

    // 3. 创建相机
    const camera = new THREE.PerspectiveCamera(
      75,
      window.innerWidth / window.innerHeight,
      0.1,
      1000
    );

    camera.position.set(5, 5, 10);

    camera.lookAt(0, 0, 0);

    const ambientLight = new THREE.AmbientLight(0xffffff, 0.4);
    scene.add(ambientLight);

    const directionalLight = new THREE.DirectionalLight(0xffffff, 1);
    directionalLight.position.set(10, 10, 10)
    scene.add(directionalLight);

    const textloader = new THREE.TextureLoader();
    var texture = textloader.load('./images/scene.jpg');
    var sphereMaterial = new THREE.MeshBasicMaterial({map: texture});

    var sphereGeometry = new THREE.SphereGeometry(/*半径*/1, 50, 50);
    sphereGeometry.scale(1, 1, -1);


    var sphere = new THREE.Mesh(sphereGeometry,sphereMaterial);
    // sphere.material.wireframe  = true;

    scene.add(sphere);


    const controls = new OrbitControls(camera, renderer.domElement);
    controls.update();


    const clock = new THREE.Clock();
    function animate() {
      requestAnimationFrame(animate);
      const elapsedTime = clock.getElapsedTime(); // 返回已经过去的时间, 以秒为单位
      sphere.rotation.y = elapsedTime * 0.1; // 两秒自转一圈
      renderer.render(scene, camera);
    }

    animate()