# `GSCompositingOperation.GSCompositingOperationLuminosity`

*Type Property*

`COMPOSITE_HSL_LUMINOSITY`  `kCGBlendModeLuminosity`       `NSCompositingOperationLuminosity`

## Declaration

```swift
static let luminosity: GSCompositingOperation
```

```objc
extern GSCompositingOperation const GSCompositingOperationLuminosity;
```

```python
GSCompositingOperationLuminosity: GSCompositingOperation
```