Applies all changes from the current automatic transaction.
- iOS 8.0+
- macOS 10.8+
- tvOS 9.0+
- watchOS 3.0+
SceneKit automatically calls this method at the end of each pass through the run loop, regardless of the run loop mode. If your app does not have a run loop, you must call this method explicitly.
If the current transaction has any nested transactions that are still animating, SceneKit waits to commit the current transaction’s changes until those transactions complete.