---
title: aVector
framework: coreimage
role: symbol
role_heading: Instance Property
path: coreimage/cicolormatrix/avector
---

# aVector

The amount of alpha to multiply the source color values by.

## Declaration

```swift
var aVector: CIVector { get set }
```

## See Also

### Instance Properties

- [bVector](coreimage/cicolormatrix/bvector.md)
- [gVector](coreimage/cicolormatrix/gvector.md)
- [rVector](coreimage/cicolormatrix/rvector.md)
- [biasVector](coreimage/cicolormatrix/biasvector.md)
- [inputImage](coreimage/cicolormatrix/inputimage.md)