---
title: CompositorFrameIndex
framework: compositorservices
role: symbol
role_heading: Type Alias
path: compositorservices/compositorframeindex
---

# CompositorFrameIndex

The sequential index for a frame in the compositor’s timeline.

## Declaration

```swift
typealias CompositorFrameIndex = UInt64
```

## Discussion

Discussion During the creation of your content, the compositor creates frames for you to render your content. This type stores the index the compositor assigns to that frame. The compositor presents frames sequentially based on their indexes.

## See Also

### Getting frame-related details

- [frameIndex](compositorservices/layerrenderer/frame/frameindex.md)
- [LayerFrameIndex](compositorservices/layerframeindex.md)