# setUniformTransform(type:transform:) Registers a raw-data transformer closure for a uniform of type `V`. ``` func setUniformTransform(type: V.Type, transform: @escaping @_lifetime(0: copy 0) (inout MutableRawSpan, Entity) -> Void) where V : BitwiseCopyable ``` ## Parameters `type` The `BitwiseCopyable` type the transformer operates on. `transform` A closure `(inout MutableRawSpan, Entity) -> Void`. ## Discussion Use this overload when the transformation is most naturally expressed over the raw byte representation of the value. --- 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)