threejs/app/js/index.js

import * as THREE from 'three';

var renderer = new THREE.WebGLRenderer();
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setClearColor(0xb9d3ff, 1); //设置背景颜色
document.body.appendChild( renderer.domElement );

var camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 1, 1000 );
camera.position.set( 0, 0, 100 );
camera.lookAt( 0, 0, 0 );

var scene = new THREE.Scene();



renderer.render( scene, camera );