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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - drag controls</title>
- <meta charset="utf-8">
- <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
- <link type="text/css" rel="stylesheet" href="main.css">
- <style>
- body {
- background-color: #f0f0f0;
- color: #444;
- }
- a {
- color: #08f;
- }
- </style>
- </head>
- <body>
- <div id="info">
- <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - drag controls
- </div>
- <script type="module">
- import * as THREE from '../build/three.module.js';
- import Stats from './jsm/libs/stats.module.js';
- import { DragControls } from './jsm/controls/DragControls.js';
- var container, stats;
- var camera, scene, renderer;
- var objects = [];
- init();
- animate();
- function init() {
- container = document.createElement( 'div' );
- document.body.appendChild( container );
- camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 1, 5000 );
- camera.position.z = 1000;
- scene = new THREE.Scene();
- scene.background = new THREE.Color( 0xf0f0f0 );
- scene.add( new THREE.AmbientLight( 0x505050 ) );
- var light = new THREE.SpotLight( 0xffffff, 1.5 );
- light.position.set( 0, 500, 2000 );
- light.angle = Math.PI / 9;
- light.castShadow = true;
- light.shadow.camera.near = 1000;
- light.shadow.camera.far = 4000;
- light.shadow.mapSize.width = 1024;
- light.shadow.mapSize.height = 1024;
- scene.add( light );
- var geometry = new THREE.BoxBufferGeometry( 40, 40, 40 );
- for ( var i = 0; i < 200; i ++ ) {
- var object = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: Math.random() * 0xffffff } ) );
- object.position.x = Math.random() * 1000 - 500;
- object.position.y = Math.random() * 600 - 300;
- object.position.z = Math.random() * 800 - 400;
- object.rotation.x = Math.random() * 2 * Math.PI;
- object.rotation.y = Math.random() * 2 * Math.PI;
- object.rotation.z = Math.random() * 2 * Math.PI;
- object.scale.x = Math.random() * 2 + 1;
- object.scale.y = Math.random() * 2 + 1;
- object.scale.z = Math.random() * 2 + 1;
- object.castShadow = true;
- object.receiveShadow = true;
- scene.add( object );
- objects.push( object );
- }
- renderer = new THREE.WebGLRenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.shadowMap.enabled = true;
- renderer.shadowMap.type = THREE.PCFShadowMap;
- container.appendChild( renderer.domElement );
- var controls = new DragControls( objects, camera, renderer.domElement );
- controls.addEventListener( 'dragstart', function ( event ) {
- event.object.material.emissive.set( 0xaaaaaa );
- } );
- controls.addEventListener( 'dragend', function ( event ) {
- event.object.material.emissive.set( 0x000000 );
- } );
- stats = new Stats();
- container.appendChild( stats.dom );
- //
- window.addEventListener( 'resize', onWindowResize, false );
- }
- function onWindowResize() {
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- //
- function animate() {
- requestAnimationFrame( animate );
- render();
- stats.update();
- }
- function render() {
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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