I spent quite some time working on hair during this project, especially early on.
We had a vision on how to achieve and explore different techniques and features. Here are a few experiments using strands/cards/geometry.
We also built a custom shader network and tried different shading models.
Had a ton of fun working with Jorge Jimenez on these tests, learned a lot.
None of these made into the game but the lessons and learnings did :)
Final assets in-game were cards built by Airship and modified/enhanced by our internal team, with custom textures, shaders and proprietary features.