Using AVCaptureDevice as SCNScene Background Content

Question

During SceneKit: what a new presentation at WWCD2017 (44:19) it was indicated that we can now use AVCaptureDeviceas the background for SCNScene.

Fragment from the presentation:

let captureDevice: AVCaptureDevice = ...
scene.background.contents = captureDevice

However the following code

let captureDevice = AVCaptureDevice.default(.builtInWideAngleCamera, for: .video, position: .back)!
scene.background.contents = captureDevice

creates an error:

[SceneKit] Error: Cannot get pixel buffer (CVPixelBufferRef)

I also tried creating and starting AVCaptureSessionand then using the device, but it gives the same result.

What could be the problem here?

Answer 1

Edit

This bug seems to be fixed in iOS 11.2

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Original answer

this seems like a bug in SceneKit.

, ARSCNView. API SceneKit, .