otconfig command

Give preference to definitions from index files. Any operator definitions listed in index files take precedence over definitions for the same operators found in operator type libraries. Turn on this option if you have operator definitions that need to be shared between this version of Houdini and versions 5.5 or earlier.

Give preference to definitions saved in hip file. Hip files can optionally embed an operator type library containing definitions for all operators used in the hip file. If this option is on, these definitions stored in the Hip file are given precedence over definitions for the same operators stored in other operator type libraries. Turn on this option if you don’t want future changes to operator definitions to affect the functioning of your hip files. The “-x” option takes precedence over this option.

Give precedence to definitions with latest date. If this option is on and there are several definitions available for a single operator, Houdini will use the one which was modified most recently. If this option is off, Houdini uses the order in which the operator type libraries are loaded to determine which definition to use. The “-x” and “-i” options take precedence over this option.

Save operator definitions to hip file. If this option is on, whenever you save your Hip file, Houdini will embed an operator type library into the file. This library contains the operator definitions for all operators used in the Hip file. Turning this option off will reduce the disk space used by your Hip files, but if you delete one of the operator definitions used by the Hip file, the Hip file will not be able to create the deleted operator(s).

Save definitions of unlocked assets to hip file. If this option is on, whenever you save your Hip file, Houdini will embed an operator type library into the file. This library contains the operator definitions for all operator types in the Hip file that have at least one instance which is set to allow editing of its contents. If the save operator definitions to hip file option is turned on, this option doesn’t matter because all operator type definitions will be saved in the hip file whether or not there are any unlocked instances. This option is for hip files which have required modifications to an asset instance. In that case, changes to the external asset definition may invalidate the changes to the asset made within the hip file. By saving the definitions of these unlocked assets to the hip file these conflicts can be avoided. When this option is on, it is a good idea to also turn on the option to give preference to definitions saved in hip file. This will ensure that any changes to the external asset definition are ignored by this hip file.

Leave Values When Defaults Change. If this option is turned on, parameters at their default values are not changed when a new definition for the operator type is loaded with a new set of default values. If this option is turned off, then parameters at their old default values are changed to match the new default values.

Display warning for out of date operators. If this option and -i are on, Houdini checks the modification times of all operator definitions embedded in the hip file. If it finds that the embedded definition is not as recent as another definition available on disk, it opens a warning dialog to notify you that the Hip file contains operator definitions that are out of date.

Display warning during load when nodes use an incomplete asset definition because a complete definition is not available.

Create backup files when saving libraries. If this option is on, any time an operator type library file is saved a backup copy of the file will be created. This feature ensures that any changes you make to an operator definition can be undone. By default the backups are made in a “backup” subdirectory of the operator type library’s path. You can override this location by setting the HOUDINI_BACKUP_DIR environment variable.

Safeguard operator definitions. Removes “Allow Editing of Contents”/“Match Current Definition” from the context menu. Hiding this option affords a level of security preventing the user from modifying operator definitions.

Use OPlibraries files to find OTLs. This option controls how Houdini finds OTL files to load when starting up. With this option on, Houdini searches the HOUDINI_PATH for files named OPlibraries which contain lists of OTL file names to load. With this option off, Houdini scans for *.otl in all directories specified by the HOUDINI_OTLSCAN_PATH environment variable. This path defaults to the otls subdirectory of every directory in the HOUDINI_PATH.