# R_BC4_UNorm

> A one-component, block-compressed format where each 64-bit compressed texel block encodes a 4×4 rectangle of unsigned normalized red texel data.

## Definition

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

```csharp
R_BC4_UNorm = 102
```