---
title: treePartOffset
framework: hvf
role: symbol
role_heading: Instance Property
platforms: [iOS 18.4+, iPadOS 18.4+, Mac Catalyst 18.4+, macOS 15.4+, tvOS 18.4+, visionOS 2.4+, watchOS 11.4+]
path: hvf/compositesubpart/treepartoffset
---

# treePartOffset

The offset of the part’s data in the render context transform tree (depth first)

## Declaration

```swift
var treePartOffset: UInt16
```