# ClothPlaneShape Shape representing an infinite plane that encloses one half of the world. ``` struct ClothPlaneShape ``` ## Overview The plane passes through the entity’s origin with the given `normal`. Everything on the side opposite the normal (including the plane itself) is considered inside the shape. ## Topics ### Creating a plane shape [`init(normal: SIMD3, bias: Float)`](/documentation/RealityKit/ClothPlaneShape/init(normal:bias:)) Creates a plane shape with the given normal and surface displacement. ### Configuring the plane [`var bias: Float`](/documentation/RealityKit/ClothPlaneShape/bias) The distance by which the surface of the plane shape is displaced along the direction of its normal. ### Instance Properties [`var normal: SIMD3`](/documentation/RealityKit/ClothPlaneShape/normal) The normal vector determining the orientation of the plane. ## Relationships ### Conforms To [`Sendable`](/documentation/Swift/Sendable) [`Equatable`](/documentation/Swift/Equatable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) --- 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)