In our project we make use of characters that are paper-thin. For this approach we have used the Transparent/Cutout/Soft Edge Unlit shader that render both sides of the model. The problem is that this doesn't allow shadow receive/cast. What I wonder is if there is any known existing shader that can render both sides of an object, cast and receive shadows, and have a transparent cutout threshold?
Update
I made an attempt to modify Transparent/Cutout/Diffuse by adding Cull None. This does indeed render the model with shadows on both sides but since normal is pointing in one direction, lighting doesn't work. Would I have to make this a double pass shader?
Community wiki
Since question is no longer relevant for me (but might be for someone else), I flag this community wiki.