# Linear

> Linear transfer function, where output luminance is directly proportional to input.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine](/engine/6000.5/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
Linear = 3
```

### Remarks

The Linear transfer function maintains a direct proportionality between the input signal and the output luminance with no gamma correction applied.

Unity uses this EOTF when the [ColorGamut](/engine/6000.5/script-reference/unityengine/colorgamut.md) of the display is [ColorGamut.Rec709](/engine/6000.5/script-reference/unityengine/colorgamut/rec709.md) or [ColorGamut.Rec2020](/engine/6000.5/script-reference/unityengine/colorgamut/rec2020.md).