Hmmm, this has always puzzled me - I have seen a few ships (particularly indian and chinese) ships with this - the the hull has this "wrinkle" or "ripple effect" - can someone enlighten me as to why this happen? It makes the ship look like its made of paper meshes! I have never seen this on the western ships.
This has been discussed before and you can see this on all modern warships if the lighting is right. (strong contrast at shallow incident angle to surface, like how waves looks flat from top but larger from parallel). There are examples of Hyuga, Burke and type 045 on the web. Something to do with surface cooling after being welded together. Older riveted ships I believe looks prettier.