# blur(radius:opaque:) Applies a Gaussian blur to this view. ``` nonisolated func blur(radius: CGFloat, opaque: Bool = false) -> some View ``` ## Parameters `radius` The radial size of the blur. A blur is more diffuse when its radius is large. `opaque` A Boolean value that indicates whether the blur renderer permits transparency in the blur output. Set to `true` to create an opaque blur, or set to `false` to permit transparency. ## Discussion Use `blur(radius:opaque:)` to apply a gaussian blur effect to the rendering of this view. The example below shows two [`Text`](/documentation/SwiftUI/Text) views, the first with no blur effects, the second with `blur(radius:opaque:)` applied with the `radius` set to `2`. The larger the radius, the more diffuse the effect. ``` struct Blur: View { var body: some View { VStack { Text("This is some text.") .padding() Text("This is some blurry text.") .blur(radius: 2.0) } } } ```  --- 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)