The Functions File

There are two text files in which you can enter user-defined functions:

• Project-specific file: /opt/Autodesk/project/<project_name>/expressions/userfun.expressions
• Template file: /opt/Autodesk/presets/<product_name>/expressions/userfun.expressions

To define a function for your current project, add it to the project-specific file. Modifying this file will affect only that project and not any other existing or future projects.

If you decide that you want to use the function in future projects, copy it from the project-specific file to the template file. When you create a project, the template file is copied to your project directory as the project-specific file for that new project. This functionality allows you to modify user-defined functions in new projects without affecting the behaviour of your animations in older projects.