webgl_loader_imagebitmap.html 3.6 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <title>three.js webgl - loader - ImageBitmap</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> - Texture loader using ImageBitmap
  12. </div>
  13. <script type="importmap">
  14. {
  15. "imports": {
  16. "three": "../build/three.module.js",
  17. "three/addons/": "./jsm/"
  18. }
  19. }
  20. </script>
  21. <script type="module">
  22. import * as THREE from 'three';
  23. let camera, scene, renderer;
  24. let group, cubes;
  25. init();
  26. function addImageBitmap() {
  27. new THREE.ImageBitmapLoader()
  28. .load( 'textures/planets/earth_atmos_2048.jpg?' + performance.now(), function ( imageBitmap ) {
  29. const texture = new THREE.CanvasTexture( imageBitmap );
  30. texture.colorSpace = THREE.SRGBColorSpace;
  31. const material = new THREE.MeshBasicMaterial( { map: texture } );
  32. /* ImageBitmap should be disposed when done with it
  33. Can't be done until it's actually uploaded to WebGLTexture */
  34. // imageBitmap.close();
  35. addCube( material );
  36. }, function ( p ) {
  37. console.log( p );
  38. }, function ( e ) {
  39. console.log( e );
  40. } );
  41. }
  42. function addImage() {
  43. new THREE.ImageLoader()
  44. .setCrossOrigin( '*' )
  45. .load( 'textures/planets/earth_atmos_2048.jpg?' + performance.now(), function ( image ) {
  46. const texture = new THREE.CanvasTexture( image );
  47. texture.colorSpace = THREE.SRGBColorSpace;
  48. const material = new THREE.MeshBasicMaterial( { color: 0xff8888, map: texture } );
  49. addCube( material );
  50. } );
  51. }
  52. const geometry = new THREE.BoxGeometry();
  53. function addCube( material ) {
  54. const cube = new THREE.Mesh( geometry, material );
  55. cube.position.set( Math.random() * 2 - 1, Math.random() * 2 - 1, Math.random() * 2 - 1 );
  56. cube.rotation.set( Math.random() * 2 * Math.PI, Math.random() * 2 * Math.PI, Math.random() * 2 * Math.PI );
  57. cubes.add( cube );
  58. }
  59. function init() {
  60. const container = document.createElement( 'div' );
  61. document.body.appendChild( container );
  62. // CAMERA
  63. camera = new THREE.PerspectiveCamera( 30, window.innerWidth / window.innerHeight, 1, 1500 );
  64. camera.position.set( 0, 4, 7 );
  65. camera.lookAt( 0, 0, 0 );
  66. // SCENE
  67. scene = new THREE.Scene();
  68. //
  69. group = new THREE.Group();
  70. scene.add( group );
  71. group.add( new THREE.GridHelper( 4, 12, 0x888888, 0x444444 ) );
  72. cubes = new THREE.Group();
  73. group.add( cubes );
  74. // RENDERER
  75. renderer = new THREE.WebGLRenderer( { antialias: true } );
  76. renderer.setPixelRatio( window.devicePixelRatio );
  77. renderer.setSize( window.innerWidth, window.innerHeight );
  78. renderer.setAnimationLoop( animate );
  79. container.appendChild( renderer.domElement );
  80. // TESTS
  81. setTimeout( addImage, 300 );
  82. setTimeout( addImage, 600 );
  83. setTimeout( addImage, 900 );
  84. setTimeout( addImageBitmap, 1300 );
  85. setTimeout( addImageBitmap, 1600 );
  86. setTimeout( addImageBitmap, 1900 );
  87. // EVENTS
  88. window.addEventListener( 'resize', onWindowResize );
  89. }
  90. function onWindowResize() {
  91. camera.aspect = window.innerWidth / window.innerHeight;
  92. camera.updateProjectionMatrix();
  93. renderer.setSize( window.innerWidth, window.innerHeight );
  94. }
  95. function animate() {
  96. group.rotation.y = performance.now() / 3000;
  97. renderer.render( scene, camera );
  98. }
  99. </script>
  100. </body>
  101. </html>