---
title: atlasTextureIndex
framework: realitykit
role: symbol
role_heading: Instance Property
path: realitykit/lightmapresource/atlasreference/atlastextureindex
---

# atlasTextureIndex

Index of the atlas within the LightmapResource.

## Declaration

```swift
var atlasTextureIndex: Int
```

## See Also

### Locating the atlas texture

- [atlasTextureSlice](realitykit/lightmapresource/atlasreference/atlastextureslice.md)