---
title: renderSize
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avmutablevideocomposition/rendersize
---

# renderSize

The size at which the video composition should render.

## Declaration

```swift
var renderSize: CGSize { get set }
```

## See Also

### Configuring video composition properties

- [frameDuration](avfoundation/avmutablevideocomposition/frameduration.md)
- [renderScale](avfoundation/avmutablevideocomposition/renderscale.md)
- [animationTool](avfoundation/avmutablevideocomposition/animationtool.md)