---
title: blurRadius
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/bloomoptionscomponent/blurradius
---

# blurRadius

The width of the bloom blur kernel as a percentage of viewport height

## Declaration

```swift
var blurRadius: Float
```

## Discussion

Discussion Valid range: [3, 12]

## See Also

### Configuring the bloom effect

- [strength](realitykit/bloomoptionscomponent/strength.md)
- [threshold](realitykit/bloomoptionscomponent/threshold.md)