---
title: attenuationEndDistance
framework: modelio
role: symbol
role_heading: Instance Property
path: modelio/mdlphysicallyplausiblelight/attenuationenddistance
---

# attenuationEndDistance

The distance from the light source, in units of local coordinate space, at which its illumination becomes zero.

## Declaration

```swift
var attenuationEndDistance: Float { get set }
```

## Discussion

Discussion At distances less than the start distance, the light’s illumination is at full intensity. At distances greater than the end distance, the light provides no illumination. At distances in between the start and end distance, the attenuationFalloffExponent property defines the transition from full illumination to no illumination. The default distance is 2.0.

## See Also

### Managing Attenuation

- [attenuationStartDistance](modelio/mdlphysicallyplausiblelight/attenuationstartdistance.md)