Adds NURBS output curves to hair follicles that do not already have output curves. Added output curves are based on the hair system's input curves.
Use this option to add NURBS output curves to a hair system created from Paint Effects or to replace output curves that have been deleted. You cannot use Add Output Curves to Hair to create a second node or a new hair system (for example, hairSytemShape node).
See nHair connections and nHair output.