---
title: destinationAlphaBlendFactor
framework: metal
role: symbol
role_heading: Instance Property
path: metal/mtlrenderpipelinecolorattachmentdescriptor/destinationalphablendfactor
---

# destinationAlphaBlendFactor

The destination blend factor (DBF) used by the alpha blend operation.

## Declaration

```swift
var destinationAlphaBlendFactor: MTLBlendFactor { get set }
```

## Discussion

Discussion The default value is MTLBlendFactor.zero.

## See Also

### Configuring blend factors

- [destinationRGBBlendFactor](metal/mtlrenderpipelinecolorattachmentdescriptor/destinationrgbblendfactor.md)
- [sourceAlphaBlendFactor](metal/mtlrenderpipelinecolorattachmentdescriptor/sourcealphablendfactor.md)
- [sourceRGBBlendFactor](metal/mtlrenderpipelinecolorattachmentdescriptor/sourcergbblendfactor.md)
- [MTLBlendFactor](metal/mtlblendfactor.md)