---
title: "blur(radius:opaque:)"
framework: swiftui
role: symbol
role_heading: Instance Method
path: "swiftui/visualeffect/blur(radius:opaque:)"
---

# blur(radius:opaque:)

Applies a Gaussian blur to the view.

## Declaration

```swift
func blur(radius: CGFloat, opaque: Bool = false) -> some VisualEffect

```

## 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.

## Return Value

Return Value An effect that blurs the view.

## Discussion

Discussion Use blur(radius:opaque:) to apply a gaussian blur effect to the rendering of the view.

## See Also

### Applying other effects

- [distortionEffect(_:maxSampleOffset:isEnabled:)](swiftui/visualeffect/distortioneffect(_:maxsampleoffset:isenabled:).md)
- [layerEffect(_:maxSampleOffset:isEnabled:)](swiftui/visualeffect/layereffect(_:maxsampleoffset:isenabled:).md)