---
title: makeUnlitLightingFunction()
framework: realitykit
role: symbol
role_heading: Instance Method
path: realitykit/lowlevelrendercontextlighting/makeunlitlightingfunction()
---

# makeUnlitLightingFunction()

Returns an unlit lighting function that emits the surface emissive color directly, without any lighting calculations.

## Declaration

```swift
func makeUnlitLightingFunction() -> sending LowLevelMaterialResource.LightingFunction
```

## Return Value

Return Value An unlit LowLevelMaterialResource.LightingFunction.

## See Also

### Making lighting functions

- [makeImageBasedLightingFunction()](realitykit/lowlevelrendercontextlighting/makeimagebasedlightingfunction().md)