Editing Hierarchy (section)

===Computer-graphic imaging===
{{Main|3D modeling}}
[[Computer-generated imagery|CGI]] and [[computer animation|computer-animation]] [[computer program|programs]] mostly use hierarchies for models. On a [[3D computer graphics|3D]] model of a [[human]] for example, the [[chest]] is a [[parent]] of the upper left arm, which is a parent of the lower left arm, which is a parent of the [[hand]]. This pattern is used in [[3D modeling|modeling]] and [[animation]] for almost everything built as a 3D [[Digital data|digital]] model.