Cache Modifier
Overview
This modifier stores a snapshot of hair or guides and displays it inside a viewport. This is needed, for example, when detaching hair from base surface and/or saving it in a groom. Even if the modifier stack below this modifier does not output anything because there is no base surface, this modifier will show the cached hair or guides output to visually aid in placement of the groom inside the viewport.
Missing Something? Let us know if this page needs more information about the topic.