3. UV map
 

                                                                                          




1.  



2. 　

3.　　




4.  　




5. 　　

Utilize will cut into each pieces.


6.　　

It will be a square shape.


7.　

All faces are separated.


8.　　




9.　　

Select all edges.


10.　

Deselect the border edges.


11.　




12.　

Now all faces are connected like this.


13.　　



14.　　

Select all uv points.


15.



16.　

Check the direction by selecting uv points like this.
The UV map needs to rotate 90 degree on counter clock wise.


17.　

Rotate.


18.　　

Select the bottom of the uv points.
The bottom of uv points of the hair should be selected.



19.　　




20.

Apply Normalize to make a squre shape.