I'm having a problem making cloth for a character, where both sides of the cloth must have it's own UVs. I also want to use alphatesting to make some tears at the edges of the cloth, so I can't model "thickness" since then you would be able to see into the model at the edges.
With that in mind, I simply copied parts of the cloth, flipped the normals, and built the interior by hand. This worked fine until after I had UV:ed everything and tried to weld the two mirrored sides together for final export, when the vertices at the center seam just refused to weld (or collapse) anywhere the cloth has an interior. The outside welded with the inside, but that's not really what I wanted. So I get a nasty lighting seam throughout.
Is there a better way to make two-sided cloth? Or anyway to get around the won't-weld problem? I am using 3dsmax and Edit Polygon.
Any tips would be appreciated.