The OpenGL context that the view uses to render its contents.
- macOS 10.8–10.14Deprecated
If you use OpenGL for custom rendering (see the
SCNScene protocols), you can use this property to share OpenGL resources between the context used for rendering the scene and other OpenGL contexts your app uses. For details on sharing OpenGL resources, see Sharing Rendering Context Resources. (SceneKit automatically shares its own OpenGL resources between multiple
SCNView instances in your app as needed.)