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	<title>MDDLoader - Three.js Docs</title>
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		<p class="inheritance" translate="no"><a href="Loader.html">Loader</a> → </p>
	<h1 translate="no">MDDLoader</h1>
		<section>
			<header>
				<div class="class-description"><p>A loader for the MDD format.</p>
<p>MDD stores a position for every vertex in a model for every frame in an animation.
Similar to BVH, it can be used to transfer animation data between different 3D applications or engines.</p>
<p>MDD stores its data in binary format (big endian) in the following way:</p>
<ul>
<li>number of frames (a single uint32)</li>
<li>number of vertices (a single uint32)</li>
<li>time values for each frame (sequence of float32)</li>
<li>vertex data for each frame (sequence of float32)</li>
</ul></div>
				<h2>Code Example</h2>
				<div translate="no"><pre><code class="language-js">const loader = new MDDLoader();
const result = await loader.loadAsync( 'models/mdd/cube.mdd' );
const morphTargets = result.morphTargets;
const clip = result.clip;
// clip.optimize(); // optional
const geometry = new THREE.BoxGeometry();
geometry.morphAttributes.position = morphTargets; // apply morph targets (vertex data must match)
const material = new THREE.MeshBasicMaterial();
const mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
const mixer = new THREE.AnimationMixer( mesh );
mixer.clipAction( clip ).play();
</code></pre></div>
			</header>
			<article>
				<h2 class="subsection-title">Import</h2>
				<p><span translate="no">MDDLoader</span> is an addon, and must be imported explicitly, see <a href="https://threejs.org/manual/#en/installation" target="_blank" rel="noopener">Installation#Addons</a>.</p>
				<pre><code class="language-js">import { MDDLoader } from 'three/addons/loaders/MDDLoader.js';</code></pre>
				<div class="container-overview">
					<h2>Constructor</h2>
					<h3 class="name name-method" id="MDDLoader" translate="no">new <a href="#MDDLoader">MDDLoader</a><span class="signature">( manager : <span class="param-type"><a href="LoadingManager.html">LoadingManager</a></span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Constructs a new MDD loader.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>manager</strong>
									</td>
									<td class="description last">
										<p>The loading manager.</p>
									</td>
								</tr>
							</tbody>
						</table>
					</div>
				</div>
				<h2 class="subsection-title">Methods</h2>
					<h3 class="name name-method" id="load" translate="no">.<a href="#load">load</a><span class="signature">( url : <span class="param-type">string</span>, onLoad : <span class="param-type">function</span>, onProgress : <span class="param-type"><a href="global.html#onProgressCallback">onProgressCallback</a></span>, onError : <span class="param-type"><a href="global.html#onErrorCallback">onErrorCallback</a></span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Starts loading from the given URL and passes the loaded MDD asset
to the <code>onLoad()</code> callback.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>url</strong>
									</td>
									<td class="description last">
										<p>The path/URL of the file to be loaded. This can also be a data URI.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong>onLoad</strong>
									</td>
									<td class="description last">
										<p>Executed when the loading process has been finished.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong>onProgress</strong>
									</td>
									<td class="description last">
										<p>Executed while the loading is in progress.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong>onError</strong>
									</td>
									<td class="description last">
										<p>Executed when errors occur.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="Loader.html#load">Loader#load</a></dt>
						</dl>
					</div>
					<h3 class="name name-method" id="parse" translate="no">.<a href="#parse">parse</a><span class="signature">( data : <span class="param-type">ArrayBuffer</span> )</span><span class="type-signature"> : Object</span> </h3>
					<div class="method">
						<div class="description">
							<p>Parses the given MDD data and returns an object holding the animation clip and the respective
morph targets.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>data</strong>
									</td>
									<td class="description last">
										<p>The raw XYZ data as an array buffer.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="Loader.html#parse">Loader#parse</a></dt>
						</dl>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> The result object.</dt>
						</dl>
					</div>
				<h2 class="subsection-title">Source</h2>
				<p>
					<a href="https://github.com/mrdoob/three.js/blob/master/examples/jsm/loaders/MDDLoader.js" translate="no" target="_blank" rel="noopener">examples/jsm/loaders/MDDLoader.js</a>
				</p>
			</article>
		</section>
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