Check the Texture palette to make sure Transparency is off; if it is on (which I think it is by default) then Zbrush might be treating black areas of the texture as being transparent.
Sorry, just realised i didn't have the checkbox ticked at the beginning to allow for it. Thought everything was on by default with new projects. Thanks for the quick response though :)
In your viewer settings, what is the intensity of height force parameter ? Default is 1. It's if not your problem, can you send me your project (by PM) ?
Cool, thanks! Could you elaborate a bit on the character ini setup? I'm a bit unclear about that. Does it have something to do with the Default/UDKCharInfo.ini?
I think he means custom vertex normals instead of using the default smoothing. http://wiki.polycount.com/NormalMap Look to the "Edited Vertex Normals" section.
They should totally hire you and use this as a default in Unity and not their crappy mat editor shit that they've got going on right now - this is really cool looking!