# HDRDisplayBitDepth

> Options for the number of bits for HDR output in each color channel of swap chain buffers. Applicable when an HDR display is active.

## Definition

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

```csharp
public enum HDRDisplayBitDepth
```

## Remarks

The bit count also defines the method Unity uses to render content to the display.

## Fields

| Value                                                                                      | Description                                                                                     |
| ------------------------------------------------------------------------------------------ | ----------------------------------------------------------------------------------------------- |
| [BitDepth10](/engine/6000.5/script-reference/unityengine/hdrdisplaybitdepth/bitdepth10.md) | Unity uses the R10G10B10A2 buffer format and Rec2020 primaries with ST2084 PQ encoding.         |
| [BitDepth16](/engine/6000.5/script-reference/unityengine/hdrdisplaybitdepth/bitdepth16.md) | Unity uses the R16G16B16A16 buffer format and Rec709 primaries with linear color (no encoding). |