---
title: ARWorldTrackingConfiguration.EnvironmentTexturing.manual
framework: arkit
role: symbol
role_heading: Case
path: arkit/arworldtrackingconfiguration/environmenttexturing-swift.enum/manual
---

# ARWorldTrackingConfiguration.EnvironmentTexturing.manual

The framework generates environment textures only for probe anchors you explicitly add to the session.

## Declaration

```swift
case manual
```

## Discussion

Discussion When you use this environmentTexturing option, you must manually choose when and where to generate environment map textures: Create an AREnvironmentProbeAnchor object with a transform indicating its position in the scene. Add the probe anchor to the session with the add(anchor:) method. If you display AR content using ARSCNView, SceneKit automatically retrieves texture maps from probe anchors and uses them to light the scene. Otherwise, use a delegate method such as session(_:didUpdate:) to find out when the probe anchor’s texture has been updated and access the environmentTexture property.