# BT1886

> ITU-R BT.1886 transfer function, standard for HDTV.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine](/engine/6000.7/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
BT1886 = 1
```

### Remarks

BT.1886 is a gamma 2.4 transfer function that applies a power-law relationship between the input signal and the output luminance, designed for the Rec. 709 (HDTV) standards.

Both its inputs and outputs are normalized to \[0, 1], similar to TransferFunction.sRGB and [TransferFunction.Gamma22](/engine/6000.7/script-reference/unityengine/transferfunction/gamma22.md) EOTFs.

For more information, refer to [International Telecommunication Union's Reference document for BT.1886](https://www.itu.int/dms_pubrec/itu-r/rec/bt/R-REC-BT.1886-0-201103-I!!PDF-E.pdf)