# Unknown

> This is the default uninitialized value for this enum. It is here as a placeholder. Unity will never return this, and you will never use it.

## Definition

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

```csharp
Unknown = 0
```