---
title: rootJoint
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/skeletonresource/rootjoint
---

# rootJoint

The root joint of the skeleton hierarchy.

## Declaration

```swift
final var rootJoint: SkeletonResource.Joint { get }
```

## See Also

### Defining the joint hierarchy

- [SkeletonResource.Joint](realitykit/skeletonresource/joint.md)
- [SkeletonResource.JointBuilder](realitykit/skeletonresource/jointbuilder.md)