The parent object that contains this object.
- iOS 9.0+
- macOS 10.11+
- tvOS 9.0+
- Model I/O
Many asset formats describe a hierarchy of transforms that model the spatial relationships between meshes, lights, and cameras in the asset. In such formats, hierarchic transforms are
MDLObject instances whose
children property references the objects affected by the transform, and those objects can be other
MDLObject instances with children of their own.
This property’s value is
nil for the top-level objects in a