It should be on by default when using DFAO.
When i use skylight or cubmap the mouth of Characters are have Irrational reflection，i don’t know how to remove this 。so i think specular occ can do it but i don’t know how to make it work！:o
Characters are an entirely different matter. The simplest solution would be using using textures to mask it or cover it up.
Skinned meshes do not produce distance fields.