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		<p class="inheritance" translate="no"><a href="EventDispatcher.html">EventDispatcher</a> → <a href="Node.html">Node</a> → <a href="InputNode.html">InputNode</a> → </p>
	<h1 translate="no">BufferAttributeNode</h1>
		<section>
			<header>
				<div class="class-description"><p>In earlier <code>three.js</code> versions it was only possible to define attribute data
on geometry level. With <code>BufferAttributeNode</code>, it is also possible to do this
on the node level.</p>
<pre><code class="language-js">const geometry = new THREE.PlaneGeometry();
const positionAttribute = geometry.getAttribute( 'position' );
const colors = [];
for ( let i = 0; i &lt; position.count; i ++ ) {
	colors.push( 1, 0, 0 );
}
material.colorNode = bufferAttribute( new THREE.Float32BufferAttribute( colors, 3 ) );
</code></pre>
<p>This new approach is especially interesting when geometry data are generated via
compute shaders. The below line converts a storage buffer into an attribute node.</p>
<pre><code class="language-js">material.positionNode = positionBuffer.toAttribute();
</code></pre></div>
			</header>
			<article>
				<div class="container-overview">
					<h2>Constructor</h2>
					<h3 class="name name-method" id="BufferAttributeNode" translate="no">new <a href="#BufferAttributeNode">BufferAttributeNode</a><span class="signature">( value : <span class="param-type"><a href="BufferAttribute.html">BufferAttribute</a> | <a href="InterleavedBuffer.html">InterleavedBuffer</a> | TypedArray</span>, bufferType : <span class="param-type">string</span>, bufferStride : <span class="param-type">number</span>, bufferOffset : <span class="param-type">number</span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Constructs a new buffer attribute node.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong translate="no">value</strong>
									</td>
									<td class="description last">
										<p>The attribute data.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong translate="no">bufferType</strong>
									</td>
									<td class="description last">
										<p>The buffer type (e.g. <code>'vec3'</code>).</p>
										<p>Default is <code>null</code>.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong translate="no">bufferStride</strong>
									</td>
									<td class="description last">
										<p>The buffer stride.</p>
										<p>Default is <code>0</code>.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong translate="no">bufferOffset</strong>
									</td>
									<td class="description last">
										<p>The buffer offset.</p>
										<p>Default is <code>0</code>.</p>
									</td>
								</tr>
							</tbody>
						</table>
					</div>
				</div>
				<h2 class="subsection-title">Properties</h2>
				<div class="member">
					<h3 class="name" id="attribute" translate="no">.<a href="#attribute">attribute</a><span class="type-signature"> : <a href="BufferAttribute.html">BufferAttribute</a></span> </h3>
					<div class="description">
						<p>A reference to the buffer attribute.</p>
						<p>Default is <code>null</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="bufferOffset" translate="no">.<a href="#bufferOffset">bufferOffset</a><span class="type-signature"> : number</span> </h3>
					<div class="description">
						<p>The buffer offset.</p>
						<p>Default is <code>0</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="bufferStride" translate="no">.<a href="#bufferStride">bufferStride</a><span class="type-signature"> : number</span> </h3>
					<div class="description">
						<p>The buffer stride.</p>
						<p>Default is <code>0</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="bufferType" translate="no">.<a href="#bufferType">bufferType</a><span class="type-signature"> : string</span> </h3>
					<div class="description">
						<p>The buffer type (e.g. <code>'vec3'</code>).</p>
						<p>Default is <code>null</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="global" translate="no">.<a href="#global">global</a><span class="type-signature"> : boolean</span> </h3>
					<div class="description">
						<p><code>BufferAttributeNode</code> sets this property to <code>true</code> by default.</p>
						<p>Default is <code>true</code>.</p>
					</div>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="InputNode.html#global">InputNode#global</a></dt>
						</dl>
				</div>
				<div class="member">
					<h3 class="name" id="instanced" translate="no">.<a href="#instanced">instanced</a><span class="type-signature"> : boolean</span> </h3>
					<div class="description">
						<p>Whether the attribute is instanced or not.</p>
						<p>Default is <code>false</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="isBufferNode" translate="no">.<a href="#isBufferNode">isBufferNode</a><span class="type-signature"> : boolean</span> <span class="type-signature">(readonly) </span></h3>
					<div class="description">
						<p>This flag can be used for type testing.</p>
						<p>Default is <code>true</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="usage" translate="no">.<a href="#usage">usage</a><span class="type-signature"> : number</span> </h3>
					<div class="description">
						<p>The usage property. Set this to <code>THREE.DynamicDrawUsage</code> via <code>.setUsage()</code>,
if you are planning to update the attribute data per frame.</p>
						<p>Default is <code>StaticDrawUsage</code>.</p>
					</div>
				</div>
				<h2 class="subsection-title">Methods</h2>
					<h3 class="name name-method" id="generate" translate="no">.<a href="#generate">generate</a><span class="signature">( builder : <span class="param-type"><a href="NodeBuilder.html">NodeBuilder</a></span> )</span><span class="type-signature"> : string</span> </h3>
					<div class="method">
						<div class="description">
							<p>Generates the code snippet of the buffer attribute node.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong translate="no">builder</strong>
									</td>
									<td class="description last">
										<p>The current node builder.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="InputNode.html#generate">InputNode#generate</a></dt>
						</dl>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> The generated code snippet.</dt>
						</dl>
					</div>
					<h3 class="name name-method" id="generateNodeType" translate="no">.<a href="#generateNodeType">generateNodeType</a><span class="signature">( builder : <span class="param-type"><a href="NodeBuilder.html">NodeBuilder</a></span> )</span><span class="type-signature"> : string</span> </h3>
					<div class="method">
						<div class="description">
							<p>This method is overwritten since the node type is inferred from
the buffer attribute.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong translate="no">builder</strong>
									</td>
									<td class="description last">
										<p>The current node builder.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="InputNode.html#generateNodeType">InputNode#generateNodeType</a></dt>
						</dl>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> The node type.</dt>
						</dl>
					</div>
					<h3 class="name name-method" id="getHash" translate="no">.<a href="#getHash">getHash</a><span class="signature">( builder : <span class="param-type"><a href="NodeBuilder.html">NodeBuilder</a></span> )</span><span class="type-signature"> : string</span> </h3>
					<div class="method">
						<div class="description">
							<p>This method is overwritten since the attribute data might be shared
and thus the hash should be shared as well.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong translate="no">builder</strong>
									</td>
									<td class="description last">
										<p>The current node builder.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="InputNode.html#getHash">InputNode#getHash</a></dt>
						</dl>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> The hash.</dt>
						</dl>
					</div>
					<h3 class="name name-method" id="getInputType" translate="no">.<a href="#getInputType">getInputType</a><span class="signature">( builder : <span class="param-type"><a href="NodeBuilder.html">NodeBuilder</a></span> )</span><span class="type-signature"> : string</span> </h3>
					<div class="method">
						<div class="description">
							<p>Overwrites the default implementation to return a fixed value <code>'bufferAttribute'</code>.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong translate="no">builder</strong>
									</td>
									<td class="description last">
										<p>The current node builder.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="InputNode.html#getInputType">InputNode#getInputType</a></dt>
						</dl>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> The input type.</dt>
						</dl>
					</div>
					<h3 class="name name-method" id="setInstanced" translate="no">.<a href="#setInstanced">setInstanced</a><span class="signature">( value : <span class="param-type">boolean</span> )</span><span class="type-signature"> : <a href="BufferAttributeNode.html">BufferAttributeNode</a></span> </h3>
					<div class="method">
						<div class="description">
							<p>Sets the <code>instanced</code> property to the given value.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong translate="no">value</strong>
									</td>
									<td class="description last">
										<p>The value to set.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> A reference to this node.</dt>
						</dl>
					</div>
					<h3 class="name name-method" id="setUsage" translate="no">.<a href="#setUsage">setUsage</a><span class="signature">( value : <span class="param-type">number</span> )</span><span class="type-signature"> : <a href="BufferAttributeNode.html">BufferAttributeNode</a></span> </h3>
					<div class="method">
						<div class="description">
							<p>Sets the <code>usage</code> property to the given value.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong translate="no">value</strong>
									</td>
									<td class="description last">
										<p>The usage to set.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> A reference to this node.</dt>
						</dl>
					</div>
					<h3 class="name name-method" id="setup" translate="no">.<a href="#setup">setup</a><span class="signature">( builder : <span class="param-type"><a href="NodeBuilder.html">NodeBuilder</a></span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Depending on which value was passed to the node, <code>setup()</code> behaves
differently. If no instance of <code>BufferAttribute</code> was passed, the method
creates an internal attribute and configures it respectively.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong translate="no">builder</strong>
									</td>
									<td class="description last">
										<p>The current node builder.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="InputNode.html#setup">InputNode#setup</a></dt>
						</dl>
					</div>
				<h2 class="subsection-title">Source</h2>
				<p>
					<a href="https://github.com/mrdoob/three.js/blob/master/src/nodes/accessors/BufferAttributeNode.js" translate="no" target="_blank" rel="noopener">src/nodes/accessors/BufferAttributeNode.js</a>
				</p>
			</article>
		</section>
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