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		<p class="inheritance" translate="no"><a href="EventDispatcher.html">EventDispatcher</a> → <a href="Node.html">Node</a> → </p>
	<h1 translate="no">LightsNode</h1>
		<section>
			<header>
				<div class="class-description"><p>This node represents the scene's lighting and manages the lighting model's life cycle
for the current build 3D object. It is responsible for computing the total outgoing
light in a given lighting context.</p></div>
			</header>
			<article>
				<div class="container-overview">
					<h2>Constructor</h2>
					<h3 class="name name-method" id="LightsNode" translate="no">new <a href="#LightsNode">LightsNode</a><span class="signature">()</span> </h3>
					<div class="method">
						<div class="description">
							<p>Constructs a new lights node.</p>
						</div>
					</div>
				</div>
				<h2 class="subsection-title">Properties</h2>
				<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>LightsNode</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="Node.html#global">Node#global</a></dt>
						</dl>
				</div>
				<div class="member">
					<h3 class="name" id="hasLights" translate="no">.<a href="#hasLights">hasLights</a><span class="type-signature"> : boolean</span> </h3>
					<div class="description">
						<p>Whether the scene has lights or not.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="outgoingLightNode" translate="no">.<a href="#outgoingLightNode">outgoingLightNode</a><span class="type-signature"> : <a href="Node.html">Node</a>.&lt;vec3></span> </h3>
					<div class="description">
						<p>A node representing the outgoing light.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="totalDiffuseNode" translate="no">.<a href="#totalDiffuseNode">totalDiffuseNode</a><span class="type-signature"> : <a href="Node.html">Node</a>.&lt;vec3></span> </h3>
					<div class="description">
						<p>A node representing the total diffuse light.</p>
					</div>
				</div>
				<div class="member">
					<h3 class="name" id="totalSpecularNode" translate="no">.<a href="#totalSpecularNode">totalSpecularNode</a><span class="type-signature"> : <a href="Node.html">Node</a>.&lt;vec3></span> </h3>
					<div class="description">
						<p>A node representing the total specular light.</p>
					</div>
				</div>
				<h2 class="subsection-title">Methods</h2>
					<h3 class="name name-method" id="customCacheKey" translate="no">.<a href="#customCacheKey">customCacheKey</a><span class="signature">()</span><span class="type-signature"> : number</span> </h3>
					<div class="method">
						<div class="description">
							<p>Overwrites the default <a href="Node.html#customCacheKey">Node#customCacheKey</a> implementation by including
light data into the cache key.</p>
						</div>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="Node.html#customCacheKey">Node#customCacheKey</a></dt>
						</dl>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> The custom cache key.</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>Computes a hash value for identifying the current light nodes setup.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>builder</strong>
									</td>
									<td class="description last">
										<p>A reference to the current node builder.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="Node.html#getHash">Node#getHash</a></dt>
						</dl>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> The computed hash.</dt>
						</dl>
					</div>
					<h3 class="name name-method" id="getLights" translate="no">.<a href="#getLights">getLights</a><span class="signature">()</span><span class="type-signature"> : Array.&lt;<a href="Light.html">Light</a>></span> </h3>
					<div class="method">
						<div class="description">
							<p>Returns an array of the scene's lights.</p>
						</div>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> The scene's lights.</dt>
						</dl>
					</div>
					<h3 class="name name-method" id="setLights" translate="no">.<a href="#setLights">setLights</a><span class="signature">( lights : <span class="param-type">Array.&lt;<a href="Light.html">Light</a>></span> )</span><span class="type-signature"> : <a href="LightsNode.html">LightsNode</a></span> </h3>
					<div class="method">
						<div class="description">
							<p>Configures this node with an array of lights.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>lights</strong>
									</td>
									<td class="description last">
										<p>An array of lights.</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><span class="type-signature"> : <a href="Node.html">Node</a>.&lt;vec3></span> </h3>
					<div class="method">
						<div class="description">
							<p>The implementation makes sure that for each light in the scene
there is a corresponding light node. By building the light nodes
and evaluating the lighting model the outgoing light is computed.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>builder</strong>
									</td>
									<td class="description last">
										<p>A reference to the current node builder.</p>
									</td>
								</tr>
							</tbody>
						</table>
						<dl class="details">
							<dt class="tag-overrides"><strong>Overrides:</strong> <a href="Node.html#setup">Node#setup</a></dt>
						</dl>
						<dl class="details">
							<dt class="tag-returns"><strong>Returns:</strong> A node representing the outgoing light.</dt>
						</dl>
					</div>
					<h3 class="name name-method" id="setupDirectLight" translate="no">.<a href="#setupDirectLight">setupDirectLight</a><span class="signature">( builder : <span class="param-type">Object</span>, lightNode : <span class="param-type">Object</span>, lightData : <span class="param-type">Object</span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Sets up a direct light in the lighting model.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>builder</strong>
									</td>
									<td class="description last">
										<p>The builder object containing the context and stack.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong>lightNode</strong>
									</td>
									<td class="description last">
										<p>The light node.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong>lightData</strong>
									</td>
									<td class="description last">
										<p>The light object containing color and direction properties.</p>
									</td>
								</tr>
							</tbody>
						</table>
					</div>
					<h3 class="name name-method" id="setupLights" translate="no">.<a href="#setupLights">setupLights</a><span class="signature">( builder : <span class="param-type"><a href="NodeBuilder.html">NodeBuilder</a></span>, lightNodes : <span class="param-type">Array.&lt;<a href="LightingNode.html">LightingNode</a>></span> )</span> </h3>
					<div class="method">
						<div class="description">
							<p>Setups the internal lights by building all respective
light nodes.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>builder</strong>
									</td>
									<td class="description last">
										<p>A reference to the current node builder.</p>
									</td>
								</tr>
								<tr>
									<td class="name">
										<strong>lightNodes</strong>
									</td>
									<td class="description last">
										<p>An array of lighting nodes.</p>
									</td>
								</tr>
							</tbody>
						</table>
					</div>
					<h3 class="name name-method" id="setupLightsNode" translate="no">.<a href="#setupLightsNode">setupLightsNode</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>Creates lighting nodes for each scene light. This makes it possible to further
process lights in the node system.</p>
						</div>
						<table class="params">
							<tbody>
								<tr>
									<td class="name">
										<strong>builder</strong>
									</td>
									<td class="description last">
										<p>A reference to the current node builder.</p>
									</td>
								</tr>
							</tbody>
						</table>
					</div>
				<h2 class="subsection-title">Source</h2>
				<p>
					<a href="https://github.com/mrdoob/three.js/blob/master/src/nodes/lighting/LightsNode.js" translate="no" target="_blank" rel="noopener">src/nodes/lighting/LightsNode.js</a>
				</p>
			</article>
		</section>
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