Chapter 116: IESSpotLight

Core Idea

A IES version of SpotLight. Can only be used with WebGPURenderer.

Key Concepts

• iesMap : Texture: The IES map. It's a lookup table that stores normalized attenuation factors (0.0 to 1.0) that represent the light's intensity at a specific…

Reference Tables

Constructor

Signature
`new IESSpotLight( color : number

Properties

Property	Description
.iesMap : Texture	The IES map. It's a lookup table that stores normalized attenuation factors (0.0 to 1.0) that represent the light's intensity at a specific angle.

Key Takeaways

1. IESSpotLight extends: EventDispatcher → Object3D → Light → SpotLight
2. Most relevant properties: iesMap.

Connects To

• EventDispatcher: parent class
• Object3D: parent class
• Light: parent class
• SpotLight: parent class
• Source: src/lights/webgpu/IESSpotLight.js