Creates a visual aid consisting of a spherical [page:Mesh] for a [page:HemisphereLight HemisphereLight].
const light = new THREE.HemisphereLight( 0xffffbb, 0x080820, 1 );
const helper = new THREE.HemisphereLightHelper( light, 5 );
scene.add( helper );
[page:HemisphereLight light] -- The light being visualized.
[page:Number size] -- The size of the mesh used to visualize the light.
[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.
Reference to the HemisphereLight being visualized.
Reference to the hemisphereLight's [page:Object3D.matrixWorld matrixWorld].
See [page:Object3D.matrixAutoUpdate]. Set to `false` here as the helper is using the hemisphereLight'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.
Frees the GPU-related resources allocated by this instance. Call this method whenever this instance is no longer used in your app.
Updates the helper to match the position and direction of the [page:.light].
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]