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101 lines
3.0 KiB
101 lines
3.0 KiB
3 years ago
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<!DOCTYPE html>
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<html lang="zh">
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<head>
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<meta charset="utf-8" />
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<base href="../../../" />
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<script src="page.js"></script>
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<link type="text/css" rel="stylesheet" href="page.css" />
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</head>
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<body>
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[page:Loader] →
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<h1>[name]</h1>
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<p class="desc">
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加载[page:Texture texture]的一个类。
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内部使用[page:ImageLoader]来加载文件。
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</p>
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<h2>代码示例</h2>
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<code>
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const texture = new THREE.TextureLoader().load( 'textures/land_ocean_ice_cloud_2048.jpg' );
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// 立即使用纹理进行材质创建
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const material = new THREE.MeshBasicMaterial( { map: texture } );
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</code>
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<h2>Code Example with Callbacks</h2>
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<code>
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// 初始化一个加载器
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const loader = new THREE.TextureLoader();
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// 加载一个资源
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loader.load(
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// 资源URL
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'textures/land_ocean_ice_cloud_2048.jpg',
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// onLoad回调
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function ( texture ) {
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// in this example we create the material when the texture is loaded
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const material = new THREE.MeshBasicMaterial( {
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map: texture
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} );
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},
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// 目前暂不支持onProgress的回调
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undefined,
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// onError回调
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function ( err ) {
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console.error( 'An error happened.' );
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}
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);
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</code>
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<p>
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请注意three.js r84遗弃了TextureLoader进度事件。对于支持进度事件的TextureLoader ，
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请参考[link:https://github.com/mrdoob/three.js/issues/10439#issuecomment-293260145 this thread]。
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</p>
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<h2>例子</h2>
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<p>
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[example:webgl_geometry_cube geometry / cube]
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</p>
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<h2>构造函数</h2>
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<h3>[name]( [param:LoadingManager manager] )</h3>
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<p>
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[page:LoadingManager manager] — 加载器使用的[page:LoadingManager loadingManager]，默认值为[page:LoadingManager THREE.DefaultLoadingManager].<br /><br />
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创建一个新的[name].
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</p>
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<h2>属性</h2>
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<p>共有属性请参见其基类[page:Loader]。</p>
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<h2>方法</h2>
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<p>共有方法请参见其基类[page:Loader]。</p>
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<h3>[method:Texture load]( [param:String url], [param:Function onLoad], [param:Function onProgress], [param:Function onError] )</h3>
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<p>
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[page:String url] — 文件的URL或者路径，也可以为
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[link:https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs Data URI].<br />
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[page:Function onLoad] — 加载完成时将调用。回调参数为将要加载的[page:Texture texture].<br />
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[page:Function onProgress] — 将在加载过程中进行调用。参数为XMLHttpRequest实例，实例包含[page:Integer total]和[page:Integer loaded]字节。<br />
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[page:Function onError] — 在加载错误时被调用。<br /><br />
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从给定的URL开始加载并将完全加载的[page:Texture texture]传递给onLoad。该方法还返回一个新的纹理对象，该纹理对象可以直接用于材质创建。
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如果采用此方法，一旦相应的加载过程完成，纹理可能会在场景中出现。
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</p>
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<h2>源</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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</p>
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</body>
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</html>
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