I've been working on optimization of the hair strands layout for hair cards. The challenge was to identify what type of hair strands are present in most straight hair medium length haircuts. All four presented hair styles use the same map set (Color, Normal, Spec, AO). At the bottom of the post you can see the layer construction of each haircut (in form of GIFs).

Breakdown of the texture maps is on my blog:

https://www.artstation.com/alexlashko/blog/P2Md/hair-cards-breakdown

IG: https://www.instagram.com/alex.lashko.art/