---
title: rgbBlendOperation
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtl4renderpipelinecolorattachmentdescriptor/rgbblendoperation
---

# rgbBlendOperation

Configures the RGB blend operation.

## Declaration

```swift
var rgbBlendOperation: MTLBlendOperation { get set }
```

## Discussion

Discussion This property defaults to MTLBlendOperationAdd.