ImageBitmapLoader.html 3.6 KB

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  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="utf-8" />
  5. <base href="../../../" />
  6. <script src="list.js"></script>
  7. <script src="page.js"></script>
  8. <link type="text/css" rel="stylesheet" href="page.css" />
  9. </head>
  10. <body>
  11. <h1>[name]</h1>
  12. <p class="desc">
  13. A loader for loading an [page:Image] as an [link:https://developer.mozilla.org/de/docs/Web/API/ImageBitmap ImageBitmap].
  14. An ImageBitmap provides an asynchronous and resource efficient pathway to prepare textures for rendering in WebGL.<br/>
  15. Unlike [page:FileLoader], [name] does not avoid multiple concurrent requests to the same URL.
  16. </p>
  17. <h2>Example</h2>
  18. <p>
  19. [example:webgl_loader_imagebitmap WebGL / loader / ImageBitmap]
  20. </p>
  21. <code>
  22. // instantiate a loader
  23. var loader = new THREE.ImageBitmapLoader();
  24. // load a image resource
  25. loader.load(
  26. // resource URL
  27. 'textures/skyboxsun25degtest.png',
  28. // onLoad callback
  29. function ( imageBitmap ) {
  30. var texture = new THREE.CanvasTexture( imageBitmap );
  31. var material = new THREE.MeshBasicMaterial( { map: texture } );
  32. },
  33. // onProgress callback currently not supported
  34. undefined,
  35. // onError callback
  36. function ( err ) {
  37. console.log( 'An error happened' );
  38. }
  39. );
  40. </code>
  41. <h2>Constructor</h2>
  42. <h3>[name]( [param:LoadingManager manager] )</h3>
  43. <p>
  44. [page:LoadingManager manager] — The [page:LoadingManager loadingManager] for the loader to use. Default is [page:LoadingManager THREE.DefaultLoadingManager].<br /><br />
  45. Creates a new [name].
  46. </p>
  47. <h2>Properties</h2>
  48. <h3>[property:LoadingManager manager]</h3>
  49. <p>
  50. The [page:LoadingManager loadingManager] the loader is using. Default is [page:DefaultLoadingManager].
  51. </p>
  52. <h3>[property:String options]</h3>
  53. <p>An optional object that sets options for the internally used [link:https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/createImageBitmap createImageBitmap] factory method. Default is *undefined*.</p>
  54. <h3>[property:String path]</h3>
  55. <p>The base path from which files will be loaded. See [page:.setPath]. Default is *undefined*.</p>
  56. <h2>Methods</h2>
  57. <h3>[method:null load]( [param:String url], [param:Function onLoad], [param:Function onProgress], [param:Function onError] )</h3>
  58. <p>
  59. [page:String url] — the path or URL to the file. This can also be a
  60. [link:https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs Data URI].<br />
  61. [page:Function onLoad] — Will be called when load completes. The argument will be the loaded [page:Image image].<br />
  62. [page:Function onProgress] — This callback function is currently not supported.<br />
  63. [page:Function onError] — Will be called when load errors.<br />
  64. </p>
  65. <p>
  66. Begin loading from url and return the [page:ImageBitmap image] object that will contain the data.
  67. </p>
  68. <h3>[method:ImageBitmapLoader setCrossOrigin]()</h3>
  69. <p>This method exists for compatibility reasons and implements no logic. It ensures that [name] has a similar interface like [page:ImageLoader].</p>
  70. <h3>[method:ImageBitmapLoader setOptions]( [param:Object options] )</h3>
  71. <p>
  72. Sets the options object for [link:https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/createImageBitmap createImageBitmap].
  73. </p>
  74. <h3>[method:ImageBitmapLoader setPath]( [param:String path] )</h3>
  75. <p>
  76. Sets the base path or URL from which to load files. This can be useful if
  77. you are loading many images from the same directory.
  78. </p>
  79. <h2>Source</h2>
  80. [link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
  81. </body>
  82. </html>