<!--
{
  "availability" : [
    "iOS: 8.0.0 - 26.0.0",
    "iPadOS: 8.0.0 - 26.0.0",
    "macCatalyst: 13.1.0 - 26.0.0",
    "macOS: 10.8.0 - 26.0.0",
    "tvOS: 9.0.0 - 26.0.0",
    "visionOS: 1.0.0 - 26.0.0",
    "watchOS: 3.0.0 - 26.0.0"
  ],
  "documentType" : "symbol",
  "framework" : "SceneKit",
  "identifier" : "/documentation/SceneKit/SCNParticleSystem/isLocal",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "SceneKit"
    ],
    "preciseIdentifier" : "c:objc(cs)SCNParticleSystem(py)local"
  },
  "title" : "isLocal"
}
-->

# isLocal

A Boolean value that specifies whether the particle simulation runs in the local coordinate space of the node containing it.

```
var isLocal: Bool { get set }
```

## Discussion

If <doc://com.apple.documentation/documentation/Swift/false> (the default), all positions, distances, and velocities in the particle system are in the scene’s world coordinate system. If <doc://com.apple.documentation/documentation/Swift/true>, the particle system runs in the local coordinate space of the node containing it.

Use this property to choose whether particles spawned by a moving emitter follow the system as it moves.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)