---
title: interPupillaryDistance
framework: modelio
role: symbol
role_heading: Instance Property
path: modelio/mdlstereoscopiccamera/interpupillarydistance
---

# interPupillaryDistance

The distance, in millimeters, between the stereoscopic camera’s two viewpoints.

## Declaration

```swift
var interPupillaryDistance: Float { get set }
```

## Discussion

Discussion Each viewpoint is assumed to be horizontally offset from the camera’s position by half the interocular distance.

## See Also

### Modeling Stereoscopic Imaging

- [overlap](modelio/mdlstereoscopiccamera/overlap.md)
- [leftVergence](modelio/mdlstereoscopiccamera/leftvergence.md)
- [rightVergence](modelio/mdlstereoscopiccamera/rightvergence.md)