smoothing seam issues

Unleashed

Ok so I was redoing my comicon entry and I kept having this gaping huge seam in the model, at first I thought it was textures but it definitely is not, something to do with the mesh. textureless normalmapless in marmoset:

The model itself is welded, everything is set to one smoothing group. I think its to do with the overlapping uvs and the connected area but I dont really know why its happening

Mark Dygert

UV seam? They create broken geometry.

http://www.ericchadwick.com/examples/provost/byf2.html

BeatKitano

That's the uv, look at the others seams it cuts exactly lke that.

glib

Also if that's the phong shader in marmoset, it needs a normal to render correctly.

I think the real WTF is the chick with a dong, personally.