---
title: reactiveMaskTexture
framework: metalfx
role: symbol
role_heading: Instance Property
path: metalfx/mtlfxtemporaldenoisedscalerbase/reactivemasktexture
---

# reactiveMaskTexture

A reactive-mask texture input for this scaler to evaluate.

## Declaration

```swift
var reactiveMaskTexture: (any MTLTexture)? { get set }
```

## Discussion

Discussion This texture helps guide the denoiser when objects move quickly in a scene with inaccurate motion information, such as when they involve alpha blending. In these situations, you can get better results by guiding MetalFX whether to favor the current frame on a per-pixel basis with a reactive mask texture. When providing this texture, you are responsible for ensuring each pixel is in the range [0.0, 1.0], where a value: Equal to 0.0 tells MetalFX to follow its normal behavior for the corresponding pixel Equal to 1.0 tells MetalFX to ignore temporal history for the corresponding pixel In the range (0.0, 1.0) proportionally blends the effect for the corresponding pixel