---
title: attenuationRadius
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/pointlightcomponent/attenuationradius
---

# attenuationRadius

The distance from the light source where its intensity reaches zero.

## Declaration

```swift
var attenuationRadius: Float
```

## Discussion

Discussion Any objects at or beyond this distance do not receive illumination. The default value is 10.0 meters. See PointLightComponent for more information about how the intensity and attenuationRadius properties affect this light.

## See Also

### Configuring the light

- [intensity](realitykit/pointlightcomponent/intensity.md)
- [attenuationFalloffExponent](realitykit/pointlightcomponent/attenuationfalloffexponent.md)