# float4(_:_:_:_:) Returns an argument value representing the MSL value `float4(x, y, z, w)`. ``` @export(implementation) static func float4(_ x: T, _ y: T, _ z: T, _ w: T) -> Shader.Argument where T : BinaryFloatingPoint ``` --- 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)