File: SpotLightHelper.md | Updated: 11/15/2025
This displays a cone shaped helper object for a SpotLight.
const spotLight = new THREE.SpotLight( 0xffffff );
spotLight.position.set( 10, 10, 10 );
scene.add( spotLight );
const spotLightHelper = new THREE.SpotLightHelper( spotLight );
scene.add( spotLightHelper );
Constructs a new spot light helper.
light | The light to be visualized.
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color | The helper's color. If not set, the helper will take the color of the light.
The color parameter passed in the constructor. If not set, the helper will take the color of the light.
The light being visualized.
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 light being visualized.