Recently I made a hair tool for game production, which can easily generate hair maps. Can generate flowmap, alpha map, root map, id map very conveniently。
https://shining1.gumroad.com/l/EvJvf
There are a total of 10 points that can be edited. After the tip_width parameter is reduced, the position of the point can be freely edited.
You can also use the swirl node to adjust the distortion