api-spatial-anchors

You can persist AR content across Lens Studio sessions by using the Spatial Anchors API to create and save WorldAnchors at fixed real-world positions. This attaches content to stable anchors that survive between sessions.

A world anchor fixes virtual content to a specific real-world position using device tracking. You need world anchors for persistent AR scene placement, such as furniture placement or room decoration, where content must remain stable across multiple sessions.

Yes, device tracking is required to use spatial anchors in Lens Studio. Tracking enables the AnchorModule to map real-world coordinates, allowing WorldAnchors to maintain accurate fixed positions for location-anchored content.

Yes, you can save spatial anchors to the cloud using the Location Cloud Storage Module. This requires device relocalization in the same physical area to successfully load and restore the anchored AR content in subsequent sessions.

Add an AnchorModule to your scene, start an AnchorSession, then use createWorldAnchor and saveAnchor to persist the anchor. Attach your furniture content via AnchorComponent so it remains fixed to the real-world position across sessions.

Spatial anchors require device relocalization in the same physical area to retrieve persisted content. Cloud persistence depends on the Location Cloud Storage Module, and stable placement relies on continuous device tracking throughout the AR session.