Smooth Bind Problem

Hello, i was watching a video and the instructor made a smooth bind that worked great, and i tried the same, created the skeleton and made a smooth bind.

The result was not the expected:

this is the result expected:

I'm assuming that i need to change my weights, but what's the reason that the instructors smooth is so good and mine so bad without doing anything?

Is it a nurbs surface? maybe you just need to hit 3 on the keyboard? Otherwise the mesh may not have enough divisions to get the effect you want

It is a nurb, and i tried that but the result is the same.

Here on a wireframe view:

mine:

video:

was your original curve linear.. if so that might explain it

hmm i deleted the nurb and reviewed the lesson on how to build it again, but the result is the same

what settings are you using in the smooth bind options?

-> Joint Hierarchy
-> Closest in hierarchy
-> [x] allow multiple bind poses
-> 5 max influences
-> [x] mantain max influences
-> 4 dropoff rate
-> [x] remove unused influences
-> [x] colorize skeleton

Video doesn't have allow multiple bind poses option (maya 6.5) and colorize skeleton (which doesn't makes sense). All the other options are the same