---
title: materialIndex
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/lowlevelmesh/part/materialindex
---

# materialIndex

The material index this part associates with.

## Declaration

```swift
var materialIndex: Int
```

## See Also

### Describing a low-level mesh part

- [indexOffset](realitykit/lowlevelmesh/part/indexoffset.md)
- [indexCount](realitykit/lowlevelmesh/part/indexcount.md)
- [topology](realitykit/lowlevelmesh/part/topology.md)
- [bounds](realitykit/lowlevelmesh/part/bounds.md)