I stumbled into this video tutorial when I did my research for the first project. The guy in this tutorial explained how to create a chicken toy using NURBS, in a quite simple way.
I didn't know much about NURBS modeling, so it was a good thing to try this tutorial.
Several things I learned in during the exercise:
1. NURBS has an isopharm, which actually acts like a zipper. We can open and close the object by manipulating the isopharm.
2. Because of that, pay attention about the placing of your model. By that I mean front, back and side should correspond with X, Y and Z axis correctly.
3. Also plan well where we're going to place the isopharm. If we have the kind of model where 2 sides are geometrically symmetric (like this chicken toy), we can use the isopharm to split the model exactly in half. We then create a dynamic copy of the half and flip it in opposite direction. And from that point we just need to work on the original half; the copied part will mimic whatever changes we've done exactly in the opposite direction. Pretty neat, hm?
4. Of course, there will be the business of joining those two halves together again, that was quite tricky. For some reason my chicken didn't do what the guy's chicken did in the video. It wasn't closed very properly, I guess. But I haven't figured out what went wrong.
Anyway, this is the chicken about half way. Once I finish it, I'll be back and post it here.
See the video tutorial here .



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