# zFailOperationBack

> What to do with the contents of the buffer if the stencil test passes, but the depth test fails for back-facing geometry.

## Definition

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

```csharp
public StencilOp zFailOperationBack { get; set; }
```