On a mesh imported into Blender from a specific format with a conversion plug-in, I get duplicated vertices in the same positions, and the different faces of the mesh aren't connected to each-others.
As far as I can tell, this would be solved by the "Remove double" function, however using it deforms the mesh.
What can I do to merge all the duplicated vertices in the mesh, but without deforming it ?
(This mesh was under PMX format, in order to be used with MikuMikuDance. I imported it in Blender to rig it.)
Faces aren't connected to each others :
Normal mesh :
Deformed mesh :