# active

> Describes whether HDR output is currently active on the display. It is true if this is the case, and @@false@ otherwise.

## Definition

* **Type:** Property
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
public bool active { get; }
```

### Remarks

The value of this poperty can change at runtime as a consequence of calling [HDROutputSettings.RequestHDRModeChange](/engine/6000.0/script-reference/unityengine/hdroutputsettings/requesthdrmodechange.md). It is also possible that Unity can alter this value at runtime when responding to system or application level events.