---
title: SCNParticleSortingMode.oldestFirst
framework: scenekit
role: symbol
role_heading: Case
path: scenekit/scnparticlesortingmode/oldestfirst
---

# SCNParticleSortingMode.oldestFirst

Particles emitted earlier are rendered before particles emitted more recently.

## Declaration

```swift
case oldestFirst
```

## See Also

### Constants

- [SCNParticleSortingMode.none](scenekit/scnparticlesortingmode/none.md)
- [SCNParticleSortingMode.projectedDepth](scenekit/scnparticlesortingmode/projecteddepth.md)
- [SCNParticleSortingMode.distance](scenekit/scnparticlesortingmode/distance.md)
- [SCNParticleSortingMode.youngestFirst](scenekit/scnparticlesortingmode/youngestfirst.md)