This displays a cone shaped helper object for a [page:SpotLight].
var spotLight = new v3d.SpotLight(0xffffff);
spotLight.position.set(10, 10, 10);
scene.add(spotLight);
var spotLightHelper = new v3d.SpotLightHelper(spotLight);
scene.add(spotLightHelper);
[page:SpotLight light] -- The [page:SpotLight] to be visualized.
[page:Hex color] -- (optional) if this is not the set the helper will take the color of the light.
See the base [page:Object3D] class for common properties.
[page:LineSegments] used to visualize the light.
Reference to the [page:SpotLight] being visualized.
Reference to the spotLight's [page:Object3D.matrixWorld matrixWorld].
See [page:Object3D.matrixAutoUpdate]. Set to *false* here as the helper is using the spotLight's [page:Object3D.matrixWorld matrixWorld].
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.
See the base [page:Object3D] class for common methods.
Disposes of the light helper.
Updates the light helper.
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