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	<title>SpotLight - 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">SpotLight</h1>
		<section>
			<header>
				<div class="class-description"><p>This light gets emitted from a single point in one direction, along a cone
that increases in size the further from the light it gets.</p>
<p>This light can cast shadows - see the <a href="SpotLightShadow.html">SpotLightShadow</a> for details.</p></div>
				<h2>Code Example</h2>
				<div translate="no"><pre><code class="language-js">// white spotlight shining from the side, modulated by a texture
const spotLight = new THREE.SpotLight( 0xffffff );
spotLight.position.set( 100, 1000, 100 );
spotLight.map = new THREE.TextureLoader().load( url );
spotLight.castShadow = true;
spotLight.shadow.mapSize.width = 1024;
spotLight.shadow.mapSize.height = 1024;
spotLight.shadow.camera.near = 500;
spotLight.shadow.camera.far = 4000;
spotLight.shadow.camera.fov = 30;s
</code></pre></div>
			</header>
			<article>
				<div class="container-overview">
					<h2>Constructor</h2>
					<h3 class="name name-method" id="SpotLight" translate="no">new <a href="#SpotLight">SpotLight</a><span class="signature">( color : <span class="param-type">number | Color | string</span>, intensity : <span class="param-type">number</span>, distance : <span class="param-type">number</span>, angle : <span class="param-type">number</span>, penumbra : <span class="param-type">number</span>, decay : <span class="param-type">number</span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Constructs a new spot 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 measured in candela (cd).<br/>Default is <code>1</code>.</p></td>
								</tr>
								<tr>
									<td class="name"><code>distance</code></td>
									<td class="description last"><p>Maximum range of the light. <code>0</code> means no limit.<br/>Default is <code>0</code>.</p></td>
								</tr>
								<tr>
									<td class="name"><code>angle</code></td>
									<td class="description last"><p>Maximum angle of light dispersion from its direction whose upper bound is <code>Math.PI/2</code>.<br/>Default is <code>Math.PI/3</code>.</p></td>
								</tr>
								<tr>
									<td class="name"><code>penumbra</code></td>
									<td class="description last"><p>Percent of the spotlight cone that is attenuated due to penumbra. Value range is <code>[0,1]</code>.<br/>Default is <code>0</code>.</p></td>
								</tr>
								<tr>
									<td class="name"><code>decay</code></td>
									<td class="description last"><p>The amount the light dims along the distance of the light.<br/>Default is <code>2</code>.</p></td>
								</tr>
							</tbody>
						</table>
					</div>
				</div>
				<h2 class="subsection-title">Properties</h2>
				<div class="member">
					<h3 class="name" id="angle" translate="no">.<a href="#angle">angle</a><span class="type-signature"> : number</span> </h3>
					<div class="description">
						<p>Maximum angle of light dispersion from its direction whose upper bound is <code>Math.PI/2</code>.<br/>Default is <code>Math.PI/3</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="decay" translate="no">.<a href="#decay">decay</a><span class="type-signature"> : number</span> </h3>
					<div class="description">
						<p>The amount the light dims along the distance of the light. In context of
physically-correct rendering the default value should not be changed.<br/>Default is <code>2</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="distance" translate="no">.<a href="#distance">distance</a><span class="type-signature"> : number</span> </h3>
					<div class="description">
						<p>Maximum range of the light. <code>0</code> means no limit.<br/>Default is <code>0</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="isSpotLight" translate="no">.<a href="#isSpotLight">isSpotLight</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="map" translate="no">.<a href="#map">map</a><span class="type-signature"> : <a href="Texture.html">Texture</a></span> </h3>
					<div class="description">
						<p>A texture used to modulate the color of the light. The spot light
color is mixed with the RGB value of this texture, with a ratio
corresponding to its alpha value. The cookie-like masking effect is
reproduced using pixel values (0, 0, 0, 1-cookie_value).</p>
<p><em>Warning</em>: This property is disabled if <a href="Object3D.html#castShadow">Object3D#castShadow</a> is set to <code>false</code>.<br/>Default is <code>null</code>.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="penumbra" translate="no">.<a href="#penumbra">penumbra</a><span class="type-signature"> : number</span> </h3>
					<div class="description">
						<p>Percent of the spotlight cone that is attenuated due to penumbra.
Value range is <code>[0,1]</code>.<br/>Default is <code>0</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="shadow" translate="no">.<a href="#shadow">shadow</a><span class="type-signature"> : <a href="SpotLightShadow.html">SpotLightShadow</a></span> </h3>
					<div class="description">
						<p>This property holds the light's shadow configuration.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="target" translate="no">.<a href="#target">target</a><span class="type-signature"> : <a href="Object3D.html">Object3D</a></span> </h3>
					<div class="description">
						<p>The spot light points from its position to the
target's position.</p>
<p>For the target's position to be changed to anything other
than the default, it must be added to the scene.</p>
<p>It is also possible to set the target to be another 3D object
in the scene. The light will now track the target object.</p>
					</div>
				</div>
				<h2 class="subsection-title">Source</h2>
				<p>
					<a href="https://github.com/mrdoob/three.js/blob/master/src/lights/SpotLight.js" target="_blank" rel="noopener" translate="no">src/lights/SpotLight.js</a>
				</p>
			</article>
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