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# CAEmitterLayerRenderMode

```
struct CAEmitterLayerRenderMode
```

## Topics

### Initializers

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

### Type Properties

[`additive`](/documentation/QuartzCore/CAEmitterLayerRenderMode/additive)

The particles are rendered using source-additive compositing.

[`backToFront`](/documentation/QuartzCore/CAEmitterLayerRenderMode/backToFront)

Particles are rendered from back to front, sorted by z-position. This mode uses source-over compositing.

[`oldestFirst`](/documentation/QuartzCore/CAEmitterLayerRenderMode/oldestFirst)

Particles are rendered oldest first. This mode uses source-over compositing.

[`oldestLast`](/documentation/QuartzCore/CAEmitterLayerRenderMode/oldestLast)

Particles are rendered oldest last. This mode uses source-over compositing.

[`unordered`](/documentation/QuartzCore/CAEmitterLayerRenderMode/unordered)

Particles are rendered unordered. This mode uses source-over compositing.


---

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