Bird Wing Rig Test

[jaredr]

I've been doing a lot of research into rigging bird wings lately. But I'm not sure exactly what you are asking. The folding seems fine. What software are you using?

[TTYO]

Oh it is a question...

Do birds rotate the forearm bones or the upper arm bones as they fold up their wings?

[thebrianproject]

my guess is that the wrist rotates at the ulna/radias bones like in humans. and some rotation comes from the shoulder. I'm not a bird expert but that's how I would set it up.


The process of twisting the forearm is called supination. Maybe googling bird supination will get you some answers.

[Cactus Dan]

Howdy,

Well, a bird's bone structure in the forearm is similar to ours, so it probably can twist like ours:
http://www.nurseminerva.co.uk/adapt/wings.htm

Here's another link with images of different views of a bird skeleton:
http://a-s.clayton.edu/biology/biol3650l/skeletal/bird_skeleton.htm

Adios,
Cactus Dan

[jaredr]

I'm pretty sure there has to be some forearm twist as a bird folds its wings. If you look at those pictures of the skeleton, notice that the arm bones are not lined up at all, so the hand has adjusted itself to conform to its body. I Think the amount of twist depends on the anatomy of the specific bird.

[thehive]

hey TTYO,


i jus did a duck rig in like a day an change but was able to figure out how to squeeze the feathers could u explain how you did it. look like position constraints averaged.

cheers

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