Bake a texture from shader in unity

Question

I have a face mesh and texture that is generated at runtime in unity using the Banuba Unity SDK(Banuba Unity SDK). What i'm trying to do is bake the face texture into the uv coordinate space of the face mesh.

I tried to use the approach mentioned in this post : Bake texture from shader But unfortunately it doesn't work for me because of the specific shader Banuba uses.