---
title: scaleX
framework: metalperformanceshaders
role: symbol
role_heading: Instance Property
path: metalperformanceshaders/mpsscaletransform/scalex
---

# scaleX

The horizontal scale factor.

## Declaration

```swift
var scaleX: Double
```

## See Also

### Fields

- [scaleY](metalperformanceshaders/mpsscaletransform/scaley.md)
- [translateX](metalperformanceshaders/mpsscaletransform/translatex.md)
- [translateY](metalperformanceshaders/mpsscaletransform/translatey.md)