# Reflection Diffuse (RealityKit) Diffuse component of reflection. ## Parameter Types |Input |Type | |-----------------|---------| |`Emitter U V` |Vector2f | |`Attenuation U V`|Vector2f | |`Attenuation Map`|AssetPath| |Output|Type | |------|-------------| |`Out` |Color4| --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)