---
title: reactiveMaskContentOffsetY
framework: metalfx
role: symbol
role_heading: Instance Property
path: metalfx/mtlfxtemporalscalerbase/reactivemaskcontentoffsety
---

# reactiveMaskContentOffsetY

The vertical offset, in pixels, of the region within the reactive mask texture to use as input.

## Declaration

```swift
var reactiveMaskContentOffsetY: Int { get set }
```