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# CAEmitterLayerEmitterMode

```
struct CAEmitterLayerEmitterMode
```

## Topics

### Initializers

[`init(rawValue:)`](/documentation/QuartzCore/CAEmitterLayerEmitterMode/init(rawValue:))

### Type Properties

[`outline`](/documentation/QuartzCore/CAEmitterLayerEmitterMode/outline)

Particles are emitted from the outline of the particle emitter.

[`points`](/documentation/QuartzCore/CAEmitterLayerEmitterMode/points)

Particles are emitted from points on the particle emitter.

[`surface`](/documentation/QuartzCore/CAEmitterLayerEmitterMode/surface)

Particles are emitted from the surface of the particle emitter.

[`volume`](/documentation/QuartzCore/CAEmitterLayerEmitterMode/volume)

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


---

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