---
title: volume
framework: quartzcore
role: symbol
role_heading: Type Property
path: quartzcore/caemitterlayeremittermode/volume
---

# volume

Particles are emitted from the a position within the particle emitter.

## Declaration

```swift
static let volume: CAEmitterLayerEmitterMode
```

## See Also

### Constants

- [points](quartzcore/caemitterlayeremittermode/points.md)
- [outline](quartzcore/caemitterlayeremittermode/outline.md)
- [surface](quartzcore/caemitterlayeremittermode/surface.md)