In order to learn about unwrapping a head mesh, I looked at some examples from videogames. I’ll post some of them in case anyone else is interested:
Alt, Cyberpunk: https://i.imgur.com/N0y4Z6i.png
Rafe, Uncharted 4: https://i.imgur.com/yrryOkC.png
Tommy, Mafia: https://i.imgur.com/O4SPQgY.png
Ada, RE2: https://i.imgur.com/T2cTECb.png
Claire, RE2: https://i.imgur.com/yr4GRED.png
Pretty much everything I look at (with the exception of Cyberpunk which is all over the shop) use a layout where the head unwrap pretty much becomes square at the edges - the left and right edge at the end of the map. The majority I found have been like the third one, Tommy, with straight edges and the bottom too, but these have a squared off mesh.
Does anyone have any advice, or know of any tutorials, on how best to achieve a similar unwrap to the last two? My starting point has been a seam down the center stopping at the hairline around the forehead, but the mess that unwrapping produces is extremely difficult to mould into what they do. They have relatively little distortion and the resolution looks pretty constant. I can’t get the left and right edges straight without making a giant mess, and I always seem to have a huge amount of resolution on the neck.