This flag loads a file and associates it with the passed reference node. If the reference node does not exist, the command will fail. If the file is already loaded, then this flag will reload the same file.If a file is not given, the command will load (or reload) the last used reference file.
This flag is obsolete and has been replaced witht the loadReferenceDepth flag. When used with the -open flag, no references will be loaded. When used with -import, -reference or -loadReference flags, will load the top-most reference only.
Used to specify which references should be loaded. Valid types are “all”, “none” and “topOnly”, which will load all references, no references and top-level references only, respectively. Must be used with the -open, -import, -reference or -loadReference flags. When “none” is used with -loadReference, only path validation is performed. This can be used to replace a reference without triggering reload. Not using loadReferenceDepth will load references in the same loaded or unloaded state that they were in when the file was saved.
Used to control the return value in open, import, loadReference, and reference operations. It will force file command to return a list of new nodes added to the current scene.
Derived from mel command maya.cmds.file