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# init(squareSize:)

Initializes a checkerboard noise source with the specified square size.

```
init(squareSize: Double)
```

## Parameters

`squareSize`

The initial value for the [`squareSize`](/documentation/GameplayKit/GKCheckerboardNoiseSource/squareSize) property, which determines the size of the checkerboard pattern.

## Return Value

A new noise source.

## Discussion

To make use of this noise source, create a [`GKNoise`](/documentation/GameplayKit/GKNoise) object from it (and optionally apply operations to that noise object or combine it with other noise objects). Then create a [`GKNoiseMap`](/documentation/GameplayKit/GKNoiseMap) object from your noise object, generating a concrete field of values that you can sample from directly or visualize using the <doc://com.apple.documentation/documentation/SpriteKit/SKTexture> or `SKTileMap` class.

---

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