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	<title>RectAreaLight - Three.js Docs</title>
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		<p class="inheritance" translate="no"><a href="EventDispatcher.html">EventDispatcher</a> → <a href="Object3D.html">Object3D</a> → <a href="Light.html">Light</a> → </p>
	<h1 translate="no">RectAreaLight</h1>
		<section>
			<header>
				<div class="class-description"><p>This class emits light uniformly across the face a rectangular plane.
This light type can be used to simulate light sources such as bright
windows or strip lighting.</p>
<p>Important Notes:</p>
<ul>
<li>There is no shadow support.</li>
<li>Only PBR materials are supported.</li>
<li>You have to include <code>RectAreaLightUniformsLib</code> (<code>WebGLRenderer</code>) or <code>RectAreaLightTexturesLib</code> (<code>WebGPURenderer</code>)
into your app and init the uniforms/textures.</li>
</ul></div>
				<h2>Code Example</h2>
				<div translate="no"><pre><code class="language-js">RectAreaLightUniformsLib.init(); // only relevant for WebGLRenderer
THREE.RectAreaLightNode.setLTC( RectAreaLightTexturesLib.init() ); //  only relevant for WebGPURenderer
const intensity = 1; const width = 10; const height = 10;
const rectLight = new THREE.RectAreaLight( 0xffffff, intensity, width, height );
rectLight.position.set( 5, 5, 0 );
rectLight.lookAt( 0, 0, 0 );
scene.add( rectLight )
</code></pre></div>
			</header>
			<article>
				<div class="container-overview">
					<h2>Constructor</h2>
					<h3 class="name name-method" id="RectAreaLight" translate="no">new <a href="#RectAreaLight">RectAreaLight</a><span class="signature">( color : <span class="param-type">number | Color | string</span>, intensity : <span class="param-type">number</span>, width : <span class="param-type">number</span>, height : <span class="param-type">number</span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Constructs a new area light.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name"><code>color</code></td>
									<td class="description last"><p>The light's color.<br/>Default is <code>0xffffff</code>.</p></td>
								</tr>
								<tr>
									<td class="name"><code>intensity</code></td>
									<td class="description last"><p>The light's strength/intensity.<br/>Default is <code>1</code>.</p></td>
								</tr>
								<tr>
									<td class="name"><code>width</code></td>
									<td class="description last"><p>The width of the light.<br/>Default is <code>10</code>.</p></td>
								</tr>
								<tr>
									<td class="name"><code>height</code></td>
									<td class="description last"><p>The height of the light.<br/>Default is <code>10</code>.</p></td>
								</tr>
							</tbody>
						</table>
					</div>
				</div>
				<h2 class="subsection-title">Properties</h2>
				<div class="member">
					<h3 class="name" id="height" translate="no">.<a href="#height">height</a><span class="type-signature"> : number</span> </h3>
					<div class="description">
						<p>The height of the light.<br/>Default is <code>10</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="isRectAreaLight" translate="no">.<a href="#isRectAreaLight">isRectAreaLight</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.<br/>Default is <code>true</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="power" translate="no">.<a href="#power">power</a><span class="type-signature"> : number</span> </h3>
					<div class="description">
						<p>The light's power. Power is the luminous power of the light measured in lumens (lm).
Changing the power will also change the light's intensity.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="width" translate="no">.<a href="#width">width</a><span class="type-signature"> : number</span> </h3>
					<div class="description">
						<p>The width of the light.<br/>Default is <code>10</code>.</p>
					</div>
				</div>
				<h2 class="subsection-title">Source</h2>
				<p>
					<a href="https://github.com/mrdoob/three.js/blob/master/src/lights/RectAreaLight.js" target="_blank" rel="noopener" translate="no">src/lights/RectAreaLight.js</a>
				</p>
			</article>
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