webgl_loader_draco.html 3.4 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133
  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - loaders - Draco loader</title>
  5. <meta charset="utf-8">
  6. <meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
  7. <link type="text/css" rel="stylesheet" href="main.css">
  8. </head>
  9. <body>
  10. <div id="container"></div>
  11. <div id="info">
  12. <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> -
  13. <a href="https://github.com/google/draco" target="_blank" rel="noopener">DRACO</a> loader
  14. </div>
  15. <!-- Import maps polyfill -->
  16. <!-- Remove this when import maps will be widely supported -->
  17. <script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
  18. <script type="importmap">
  19. {
  20. "imports": {
  21. "three": "../build/three.module.js",
  22. "three/addons/": "./jsm/"
  23. }
  24. }
  25. </script>
  26. <script type="module">
  27. import * as THREE from 'three';
  28. import { DRACOLoader } from 'three/addons/loaders/DRACOLoader.js';
  29. let camera, scene, renderer;
  30. const container = document.querySelector( '#container' );
  31. // Configure and create Draco decoder.
  32. const dracoLoader = new DRACOLoader();
  33. dracoLoader.setDecoderPath( 'js/libs/draco/' );
  34. dracoLoader.setDecoderConfig( { type: 'js' } );
  35. init();
  36. animate();
  37. function init() {
  38. camera = new THREE.PerspectiveCamera( 35, window.innerWidth / window.innerHeight, 0.1, 15 );
  39. camera.position.set( 3, 0.25, 3 );
  40. scene = new THREE.Scene();
  41. scene.background = new THREE.Color( 0x443333 );
  42. scene.fog = new THREE.Fog( 0x443333, 1, 4 );
  43. // Ground
  44. const plane = new THREE.Mesh(
  45. new THREE.PlaneGeometry( 8, 8 ),
  46. new THREE.MeshPhongMaterial( { color: 0x999999, specular: 0x101010 } )
  47. );
  48. plane.rotation.x = - Math.PI / 2;
  49. plane.position.y = 0.03;
  50. plane.receiveShadow = true;
  51. scene.add( plane );
  52. // Lights
  53. const hemiLight = new THREE.HemisphereLight( 0x443333, 0x111122 );
  54. scene.add( hemiLight );
  55. const spotLight = new THREE.SpotLight();
  56. spotLight.angle = Math.PI / 16;
  57. spotLight.penumbra = 0.5;
  58. spotLight.castShadow = true;
  59. spotLight.position.set( - 1, 1, 1 );
  60. scene.add( spotLight );
  61. dracoLoader.load( 'models/draco/bunny.drc', function ( geometry ) {
  62. geometry.computeVertexNormals();
  63. const material = new THREE.MeshStandardMaterial( { color: 0x606060 } );
  64. const mesh = new THREE.Mesh( geometry, material );
  65. mesh.castShadow = true;
  66. mesh.receiveShadow = true;
  67. scene.add( mesh );
  68. // Release decoder resources.
  69. dracoLoader.dispose();
  70. } );
  71. // renderer
  72. renderer = new THREE.WebGLRenderer( { antialias: true } );
  73. renderer.setPixelRatio( window.devicePixelRatio );
  74. renderer.setSize( window.innerWidth, window.innerHeight );
  75. renderer.outputEncoding = THREE.sRGBEncoding;
  76. renderer.shadowMap.enabled = true;
  77. container.appendChild( renderer.domElement );
  78. window.addEventListener( 'resize', onWindowResize );
  79. }
  80. function onWindowResize() {
  81. camera.aspect = window.innerWidth / window.innerHeight;
  82. camera.updateProjectionMatrix();
  83. renderer.setSize( window.innerWidth, window.innerHeight );
  84. }
  85. function animate() {
  86. render();
  87. requestAnimationFrame( animate );
  88. }
  89. function render() {
  90. const timer = Date.now() * 0.0003;
  91. camera.position.x = Math.sin( timer ) * 0.5;
  92. camera.position.z = Math.cos( timer ) * 0.5;
  93. camera.lookAt( 0, 0.1, 0 );
  94. renderer.render( scene, camera );
  95. }
  96. </script>
  97. </body>
  98. </html>