# Gamma22

> Gamma 2.2 transfer function, common in CRT displays.

## Definition

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

```csharp
Gamma22 = 4
```

### Remarks

The Gamma 2.2 transfer function applies a simple power-law relationship between the input signal and the output luminance.

Both its inputs and outputs are normalized to \[0, 1], similar to [TransferFunction.BT1886](/engine/6000.5/script-reference/unityengine/transferfunction/bt1886.md) and [TransferFunction.Gamma22](/engine/6000.5/script-reference/unityengine/transferfunction/gamma22.md) EOTFs.

Unity uses this EOTF when the [ColorGamut](/engine/6000.5/script-reference/unityengine/colorgamut.md) of the display is [ColorGamut.P3D65G22](/engine/6000.5/script-reference/unityengine/colorgamut/p3d65g22.md).