Question about the eye lid of game characters

iaserlul

i've been studying other game characters recently and I noticed that professional character artist do this method of extracting the eye lids 

based on what im seeing is that they have a seperate material around the eye (indicated by the white) thats stacked on top of the mesh

can someone educate me on why they do this so i can learn myself



Model taken from ue5 metahuman

Neox

First guess is, its a wet layer. I am just surprised that it is clipping and not floating above

pior

Well ... the most direct way to check is simply to load up any Metahuman in UE !