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# add(_:)

Replaces values in the noise field by adding them to values from the specified noise object.

```
func add(_ noise: GKNoise)
```

## Parameters

`noise`

The noise object from which to add noise values.

## Discussion

Note that adding noise values can result in values outside the [-1.0, 1.0] range used for colorizing noise. If you plan to procduce colorized textures from the noise object, use the [`remapValues(toCurveWithControlPoints:)`](/documentation/GameplayKit/GKNoise/remapValues(toCurveWithControlPoints:)) method to return results to that range first.

![](images/com.apple.gameplaykit/media-2556393@2x.png)

---

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