---
title: "setStencilReferenceValue(_:)"
framework: metal
role: symbol
role_heading: Instance Method
path: "metal/mtl4rendercommandencoder/setstencilreferencevalue(_:)"
---

# setStencilReferenceValue(_:)

Configures this encoder with a reference value for stencil testing.

## Declaration

```swift
func setStencilReferenceValue(_ referenceValue: UInt32)
```

## Parameters

- `referenceValue`: A stencil test comparison value.

## Discussion

Discussion The render pipeline applies this reference value to both front-facing and back-facing primitives.

## See Also

### Configuring depth and stencil behavior

- [setDepthStencilState(_:)](metal/mtl4rendercommandencoder/setdepthstencilstate(_:).md)
- [setDepthBias(_:slopeScale:clamp:)](metal/mtl4rendercommandencoder/setdepthbias(_:slopescale:clamp:).md)
- [setDepthClipMode(_:)](metal/mtl4rendercommandencoder/setdepthclipmode(_:).md)
- [setDepthTestBounds(_:)](metal/mtl4rendercommandencoder/setdepthtestbounds(_:).md)
- [setStencilReferenceValue(front:back:)](metal/mtl4rendercommandencoder/setstencilreferencevalue(front:back:).md)