# ASTC_HDR_4x4

> ASTC (4x4 pixel block in 128 bits) compressed RGB(A) HDR texture format.

## Definition

* **Type:** Field
* **Namespace:** [UnityEngine](/engine/6000.0/script-reference/unityengine.md)
* **Assembly:** UnityEngine.CoreModule

```csharp
ASTC_HDR_4x4 = 66
```

### Remarks

Additional Resources: [TextureImporter.textureFormat](/engine/6000.0/script-reference/unityeditor/textureimporter/textureformat.md).