---
title: Rotation3D.SlerpPath.automatic
framework: spatial
role: symbol
role_heading: Case
path: spatial/rotation3d/slerppath/automatic
---

# Rotation3D.SlerpPath.automatic

Spherical linear interpolation along the automatically selected arc between two rotations.

## Declaration

```swift
case automatic
```

## Discussion

Discussion For angular separations that are less than or equal to 180°, the spherical linear interpolation along the shortest arc between two rotations, otherwise along the longest arc.

## See Also

### Enumeration Cases

- [Rotation3D.SlerpPath.shortest](spatial/rotation3d/slerppath/shortest.md)
- [Rotation3D.SlerpPath.longest](spatial/rotation3d/slerppath/longest.md)