You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 
 
 

82 lines
2.2 KiB

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<base href="../../../" />
<script src="page.js"></script>
<link type="text/css" rel="stylesheet" href="page.css" />
</head>
<body>
[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>
</body>
</html>