---
title: indexOffset
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/lowlevelmesh/part/indexoffset
---

# indexOffset

The offset, in bytes, of the first index.

## Declaration

```swift
var indexOffset: Int
```

## See Also

### Describing a low-level mesh part

- [indexCount](realitykit/lowlevelmesh/part/indexcount.md)
- [topology](realitykit/lowlevelmesh/part/topology.md)
- [materialIndex](realitykit/lowlevelmesh/part/materialindex.md)
- [bounds](realitykit/lowlevelmesh/part/bounds.md)