SceneKit's instance property “autoenablesDefaultLighting” doesn't work

Question

I tried to turn on and off default lighting in SCNView via .autoenablesDefaultLighting instance property but in doesn't work (Neither in UI nor programmatically).

I need all objects to be black when there's no light.

How to turn default lighting off ?

Here's a code:

import SceneKit
import QuartzCore

class GameViewController: NSViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        let scnView = SCNView(frame: NSRect(x: 0, 
                                            y: 0,
                                        width: 450, 
                                       height: 300))

        view.addSubview(scnView)
        scnView.autoenablesDefaultLighting = false     // DOESN'T WORK
        scnView.allowsCameraControl = true
        scnView.backgroundColor = NSColor.blue

        let scene = SCNScene()
        scnView.scene = scene

        let sphereGeo = SCNSphere(radius: 2)
        sphereGeo.segmentCount = 4
        sphereGeo.materials.first?.diffuse.contents = NSColor.lightGray
        let sphereNode = SCNNode(geometry: sphereGeo)
        sphereNode.name = "Sphere Node"
        scene.rootNode.addChildNode(sphereNode)
    }
}

Answer 1

It seems it's working only when I'm using Physically Based Rendering shading model.

let material = SCNMaterial()
material.lightingModel = SCNMaterial.LightingModel.physicallyBased

sceneView.autoenablesDefaultLighting = false

If I use .physicallyBased type property for shading my models the lighting works as supposed.