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three.js
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		[page:Object3D] &rarr;

		<h1>[name]</h1>

		<p class="desc">
			This displays a cone shaped helper object for a [page:SpotLight].
		</p>

		<h2>Code Example</h2>
		<code>
		const spotLight = new THREE.SpotLight( 0xffffff );
		spotLight.position.set( 10, 10, 10 );
		scene.add( spotLight );

		const spotLightHelper = new THREE.SpotLightHelper( spotLight );
		scene.add( spotLightHelper );
		</code>

		<h2>Examples</h2>
		<p>[example:webgl_lights_spotlights WebGL/ lights / spotlights ]</p>

		<h2>Constructor</h2>

		<h3>[name]( [param:SpotLight light], [param:Hex color] )</h3>
		<p>
			[page:SpotLight light] -- The [page:SpotLight] to be visualized.
			<br /><br />

			[page:Hex color] -- (optional) if this is not the set the helper will take
			the color of the light.
		</p>

		<h2>Properties</h2>
		<p>See the base [page:Object3D] class for common properties.</p>

		<h3>[property:LineSegments cone]</h3>
		<p>[page:LineSegments] used to visualize the light.</p>

		<h3>[property:SpotLight light]</h3>
		<p>Reference to the [page:SpotLight] being visualized.</p>

		<h3>[property:Object matrix]</h3>
		<p>Reference to the spotLight's [page:Object3D.matrixWorld matrixWorld].</p>

		<h3>[property:Object matrixAutoUpdate]</h3>
		<p>
			See [page:Object3D.matrixAutoUpdate]. Set to `false` here as the helper is
			using the spotLight's [page:Object3D.matrixWorld matrixWorld].
		</p>

		<h3>[property:hex color]</h3>
		<p>
			The color parameter passed in the constructor. Default is `undefined`. If
			this is changed, the helper's color will update the next time
			[page:.update update] is called.
		</p>

		<h2>Methods</h2>
		<p>See the base [page:Object3D] class for common methods.</p>

		<h3>[method:undefined dispose]()</h3>
		<p>
			Frees the GPU-related resources allocated by this instance. Call this
			method whenever this instance is no longer used in your app.
		</p>

		<h3>[method:undefined update]()</h3>
		<p>Updates the light helper.</p>

		<h2>Source</h2>

		<p>
			[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
		</p>
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