webgl_loader_texture_lottie.html 3.2 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134
  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - lottie 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="info">
  11. <a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - lottie<br/></br>
  12. <input id="scrubber" type="range" value="0" style="width: 300px">
  13. </div>
  14. <script src="js/libs/lottie_canvas.js"></script>
  15. <script type="module">
  16. import * as THREE from '../build/three.module.js';
  17. import { RoomEnvironment } from './jsm/environments/RoomEnvironment.js';
  18. import { RoundedBoxGeometry } from './jsm/geometries/RoundedBoxGeometry.js';
  19. import { LottieLoader } from './jsm/loaders/LottieLoader.js';
  20. let renderer, scene, camera;
  21. let mesh;
  22. init();
  23. animate();
  24. function init() {
  25. camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.1, 10 );
  26. camera.position.z = 2.5;
  27. scene = new THREE.Scene();
  28. scene.background = new THREE.Color( 0x111111 );
  29. const loader = new LottieLoader();
  30. loader.setQuality( 2 );
  31. loader.load( 'textures/lottie/24017-lottie-logo-animation.json', function ( texture ) {
  32. setupControls( texture.animation );
  33. // texture = new THREE.TextureLoader().load( 'textures/uv_grid_directx.jpg' );
  34. const geometry = new RoundedBoxGeometry( 1, 1, 1, 7, 0.2 );
  35. const material = new THREE.MeshStandardMaterial( { roughness: 0.1, map: texture } );
  36. mesh = new THREE.Mesh( geometry, material );
  37. scene.add( mesh );
  38. } );
  39. renderer = new THREE.WebGLRenderer();
  40. renderer.setPixelRatio( window.devicePixelRatio );
  41. renderer.setSize( window.innerWidth, window.innerHeight );
  42. document.body.appendChild( renderer.domElement );
  43. const environment = new RoomEnvironment();
  44. const pmremGenerator = new THREE.PMREMGenerator( renderer );
  45. scene.environment = pmremGenerator.fromScene( environment ).texture;
  46. //
  47. window.addEventListener( 'resize', onWindowResize );
  48. }
  49. function setupControls( animation ) {
  50. // Lottie animation API
  51. // https://airbnb.io/lottie/#/web
  52. // There are a few undocumented properties:
  53. // console.log( animation );
  54. const scrubber = document.getElementById( 'scrubber' );
  55. scrubber.max = animation.totalFrames;
  56. scrubber.addEventListener( 'pointerdown', function () {
  57. animation.pause();
  58. } );
  59. scrubber.addEventListener( 'pointerup', function () {
  60. animation.play();
  61. } );
  62. scrubber.addEventListener( 'input', function () {
  63. animation.goToAndStop( parseFloat( scrubber.value ), true );
  64. } );
  65. animation.addEventListener( 'enterFrame', function () {
  66. scrubber.value = animation.currentFrame;
  67. } );
  68. }
  69. function onWindowResize() {
  70. camera.aspect = window.innerWidth / window.innerHeight;
  71. camera.updateProjectionMatrix();
  72. renderer.setSize( window.innerWidth, window.innerHeight );
  73. }
  74. //
  75. function animate() {
  76. requestAnimationFrame( animate );
  77. if ( mesh ) {
  78. mesh.rotation.y -= 0.001;
  79. }
  80. renderer.render( scene, camera );
  81. }
  82. </script>
  83. </body>
  84. </html>