# acquireSceneSegmentationSession

Source: https://www.nianticspatial.com/docs/api/swift/NSDK.NSDKSession.method-acquireSceneSegmentationSession/

acquireSceneSegmentationSession

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## Declaration

@MainActor func acquireSceneSegmentationSession() -> NSDKSceneSegmentationSession

#### Summary

Returns the shared scene segmentation session, creating it on first call.
Subsequent calls return the same instance. The session is inactive until start() is
called. NSDKSession.update() will call update() on it automatically each frame once
it is started.

> **Info:**
>
> **Notice**
>
> Important: Must be called from the main thread.

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