---
title: isLocal
framework: scenekit
role: symbol
role_heading: Instance Property
path: scenekit/scnparticlesystem/islocal
---

# isLocal

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

## Declaration

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

## Discussion

Discussion If false (the default), all positions, distances, and velocities in the particle system are in the scene’s world coordinate system. If 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.

## See Also

### Controlling Particle Simulation

- [reset()](scenekit/scnparticlesystem/reset().md)
- [speedFactor](scenekit/scnparticlesystem/speedfactor.md)