# USDValue.Vec4h A 4-component half-precision vector. ``` @frozen struct Vec4h ``` ## Topics ### Initializers [`init()`](/documentation/USDKit/USDValue/Vec4h/init()) Creates a zero vector. [`init(Float16, Float16, Float16, Float16)`](/documentation/USDKit/USDValue/Vec4h/init(_:_:_:_:)) Creates a vector with the given components. ### Instance Properties [`var simd: SIMD4`](/documentation/USDKit/USDValue/Vec4h/simd) The vector as a `SIMD4`. [`var w: Float16`](/documentation/USDKit/USDValue/Vec4h/w) [`var x: Float16`](/documentation/USDKit/USDValue/Vec4h/x) [`var y: Float16`](/documentation/USDKit/USDValue/Vec4h/y) [`var z: Float16`](/documentation/USDKit/USDValue/Vec4h/z) ### Subscripts [`subscript(Int) -> Float16`](/documentation/USDKit/USDValue/Vec4h/subscript(_:)) Accesses the component at the specified index. ## Relationships ### Conforms To [`Escapable`](/documentation/Swift/Escapable) [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible) [`Hashable`](/documentation/Swift/Hashable) [`Copyable`](/documentation/Swift/Copyable) [`MetadataValue`](/documentation/USDKit/USDStage/Object/MetadataValue) [`BitwiseCopyable`](/documentation/Swift/BitwiseCopyable) [`USDValueProtocol`](/documentation/USDKit/USDValueProtocol) [`Value`](/documentation/USDKit/USDPrim/Attribute/Value) [`Equatable`](/documentation/Swift/Equatable) [`Sendable`](/documentation/Swift/Sendable) --- 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)