---
title: apertureMode
framework: avfoundation
role: symbol
role_heading: Instance Property
path: avfoundation/avassetimagegenerator/aperturemode-swift.property
---

# apertureMode

Specifies the aperture mode for the generated image.

## Declaration

```swift
var apertureMode: AVAssetImageGenerator.ApertureMode? { get set }
```

## Discussion

Discussion The default value is cleanAperture.

## See Also

### Configuring image generation

- [maximumSize](avfoundation/avassetimagegenerator/maximumsize.md)
- [requestedTimeToleranceBefore](avfoundation/avassetimagegenerator/requestedtimetolerancebefore.md)
- [requestedTimeToleranceAfter](avfoundation/avassetimagegenerator/requestedtimetoleranceafter.md)
- [dynamicRangePolicy](avfoundation/avassetimagegenerator/dynamicrangepolicy-swift.property.md)
- [AVAssetImageGenerator.DynamicRangePolicy](avfoundation/avassetimagegenerator/dynamicrangepolicy-swift.struct.md)
- [appliesPreferredTrackTransform](avfoundation/avassetimagegenerator/appliespreferredtracktransform.md)
- [AVAssetImageGenerator.ApertureMode](avfoundation/avassetimagegenerator/aperturemode-swift.struct.md)