# RGB_A1_ETC2_SRGB

> A four-component, ETC2 compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized RGB texel data with sRGB nonlinear encoding, and provides 1 bit of alpha.

## Definition

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

```csharp
RGB_A1_ETC2_SRGB = 121
```