Acutially, when Zb calculate a displacement map, when i chech the Smooth Uvs option, only the internal Uvs are smoothed. Not the Uvs border.
However i noticed that when the Smooth Uvs option is active, The uvs on the mesh borders are smoothed.
You should fix that in a next release.
Fortunately, i find a workaround using 3D Coat.
I render a disp map with linear Uvs and use 3d coat to convert it into a map that works with smoothed Uvs
