Path Maker

The "Path Maker" add-on allows you to write tags in some output paths. Tags will be replace at render time by a string generated with a line of code, a python script or an hardcoded string.

The addon can be used with CLI with the --addons flag:

blender -b /path/to/file.blend --addons blender_path_maker

It supports:

• The "Output Path" in the output properties panels
• The "Base Path" in the file output compositor nodes
• The "filepath" in the collection exporters (you'll have to use the Path Maker buttons to make it work though)

Tag Type dropdown:

• Expression: single line python expression (example: bpy.context.scene.name)
• Path: Hard coded path (example: toto\hello\world)
• Script: Path to a python script that will be interpreted (the script has to print the value)

For example: The tag (filename) can be replace by bpy.path.display_name_from_filepath(bpy.data.filepath) so that an Output Path like C:/hello/(filename)/world will now be C:/hello/file_name/world.

Example for a script:

import bpy

def run():
    version = bpy.app.version_string
    return version

The python script has to have a function definition named run that returns a string.