javascript
/
three.js
镜像自地址 https://github.com/tazdij/three.js.git


			
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		[page:Object3D] &rarr;

		<h1>[name]</h1>

		<p class="desc">
			Creates a visual aid for a [page:RectAreaLight].
		</p>

		<h2>Code Example</h2>

		<code>
		const light = new THREE.RectAreaLight( 0xffffbb, 1.0, 5, 5 );
		const helper = new RectAreaLightHelper( light );
		light.add( helper ); // helper must be added as a child of the light
		</code>


		<h2>Constructor</h2>

		<h3>[name]( [param:RectAreaLight light], [param:Hex color] )</h3>
		<p>
			[page:RectAreaLight light] -- The light being 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:RectAreaLight light]</h3>
		<p>Reference to the RectAreaLight being visualized.</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:null dispose]()</h3>
		<p>Dispose of the rectAreaLightHelper.</p>

		<h3>[method:null update]()</h3>
		<p>Updates the helper to match the position and direction of the [page:.light].</p>


		<h2>Source</h2>

		<p>
			[link:https://github.com/mrdoob/three.js/blob/master/examples/jsm/helpers/RectAreaLightHelper.js examples/jsm/helpers/RectAreaLightHelper.js]
		</p>
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