one shader on tvo same mesh = not same look :(

[Gamecode]

http://sgames.cz/waterlines.jpg

i use zaks watershader, have two same meshes, apply this one shader to mesh1,mesh2 .. and :
mesh in left side, is ok,mesh on right side have vertical lines on complete sufracE:(

[jviper]

Looks like the DUDV texture is clamped and your mesh is using texture coordinates outside of the texture.