---
title: scale
framework: scenekit
role: symbol
role_heading: Type Property
path: scenekit/scnphysicsshape/option/scale
---

# scale

An option for selecting the scale factor of the shape relative to the local coordinate space of the node containing it.

## Declaration

```swift
static let scale: SCNPhysicsShape.Option
```

## Discussion

Discussion The value for this key is an NSValue object containing an SCNVector3 structure, whose components describe the scale factor in each of the x-, y- and z-axis directions. The default value is the vector {1.0, 1.0, 1.0}, specifying no change of scale. SceneKit’s physics simulation ignores the scale property of nodes containing physics bodies when simulating collisions. Instead, use this option to provide a scale factor when creating custom physics shapes. (If you create a physics body for a node without specifying a custom shape, SceneKit uses the node’s scale property to infer this scale factor at creation time.)

## See Also

### Type Properties

- [collisionMargin](scenekit/scnphysicsshape/option/collisionmargin.md)
- [keepAsCompound](scenekit/scnphysicsshape/option/keepascompound.md)
- [type](scenekit/scnphysicsshape/option/type.md)
- [SCNPhysicsShape.ShapeType](scenekit/scnphysicsshape/shapetype.md)