SceneKit_高级08_天空盒子制作

let scnView = SCNView(frame: self.view.bounds, options: [SCNView.Option.preferredRenderingAPI.rawValue:true])     
scnView.backgroundColor = UIColor.black
self.view.addSubview(scnView)
scnView.allowsCameraControl = true

    let scene = SCNScene()
    scnView.scene = scene

    scene.background.contents = "skybox01_cube.png"

    let cameraNode = SCNNode()
    cameraNode.camera = SCNCamera()
    scene.rootNode.addChildNode(cameraNode)

open var lightingEnvironment: SCNMaterialProperty { get }