The lighting formula that SceneKit uses to render the material.
- iOS 8.0+
- macOS 10.8+
- tvOS 9.0+
- watchOS 3.0+
SceneKit provides several different lighting models, each of which combines information from a material’s visual properties with the lights and other contents of a scene. For details on how each lighting model affects rendering, see Lighting Models. For details on the contribution from each visual property, see Visual Properties for Special Effects.