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Raptor365
09-28-2009, 09:54 PM
This is a proof of concept for a bird wing animation rig I need for a personal project.

The rigs I've seen in the past included bones/joints and were primarily for one purpose, flight.
I need a number of independatnt feathers with a fully animatable wing structure for a specific animation script that is capapble of full control over the wing shapes and feather angles.

This is my latest and most promising rig that I did today that uses seperate feathers to describe the wing look. Something I need.

Shown here is one layer with proxy feathers(red lo-polys). The feathers can be anything from polys to Cloner-style C4D realistic hair style feathers.

Everything right now is done with xpresso and Coffee coding (shown in the first few frames).

The concept is simple:

-3 controllers (green triangles) are used to position the wing and feather directions which control 3 corresponding points of a B-Spline.
Similar to a C4D IK-Spline rig, withought the joints.
More controllers are ofcourse possible if needed.

-The positions of the controllers, currently polygon cubes, dictate the shape and length/stretch of the wing while the rotation of the controls dictate the angle of the feathers.
Ideally there would be 3 banks of feathers on the same wing with various angle and position offsets but under the guides of 3 global controllers like shown here.
(3 or more controllers)

The remaining inner section of the wing where it nears the body would be standard polygons and hair/fur as with real bird geometry.
This rig is for the bigger wing feathers only, not for the fluffy body hair.

The advantage to this rig for me is that toon animations are more easily done, such as going from a closed/resting position to opening and mimicking covering ones eyes, giving the finger, ect.
The controllers themselves can be morphed so wing 'routines' can be made up ahead of time and morphed.
So I think this rig may work for what I need, I hope.

Anyways, that's sort of it so far. Bird wings. Sheeesh.

Your thoughts are welcome.

//edited: See below.

djembeplay
09-29-2009, 10:23 AM
Ya, good idea - I have been thinking lightly about a good way to do feathers as well. I would go about it the same way as you essentially. I would probably use PSR constraints and 2d vector sliders on the HUD... that's a little more intuitive for me than attaching everything with xpresso... but either way works.

triplej96
09-29-2009, 11:09 AM
Looking nice Gord!

Raptor365
09-29-2009, 04:22 PM
Here's a little more. A slight change in operation.

-edited.

I hope this idea pans out. I have another idea that after the rig is ready.
I could morph several wing poses and then have target objects around the bird.
As I manouver the controllers near the targets I could have automatic morph blending taking place, which in theory would make animating it a breeze.
Or maybe just manouver a cube around the targets to blend the poses?
Just an idea, well see.



//edit:updated

So I think this might do it.

The splines are connected like a web. It's hard to see but there are 6 splines, 3 arms and 3 feather base lines.

The triangle controls vary the positions of the splines they're over and the feather angles.
The middle feathers (yellow) angles are interpolated between the other controllers.

And 3 joints that track the splines as well. Those are for a mesh piece that would join
to the bird body, kind of a nub.

Now I have to see what kind of a morph blending controller I can come up with.

http://i179.photobucket.com/albums/w289/TheRaptor365/misc/feathers_3.jpg

Raptor365
10-01-2009, 03:14 AM
That worked but I'm scrapping the whole thing. It's not what I want.
I think I'll try something based more closely on a real bird wing. (http://www.rspbliverpool.org.uk/muscles.jpg)
That was interesting though.

Raptor365
10-01-2009, 09:41 PM
Just rigged up this and tested it out and I have to say it's kicking butt.
2 controllers handling everything perfectly although I still need to add a controller
for the fingers, for toony expressions, minor.

The bone from the shoulder to the wrist stretches so that'll help with skinning.

And the feathers to figure out yet.

http://i179.photobucket.com/albums/w289/TheRaptor365/misc/feathers_4.jpg

triplej96
10-02-2009, 07:47 AM
Hey Gord, looking cool. I want to see it in motion!

Raptor365
10-02-2009, 02:34 PM
I'll try and put one up within the week. I'm still figuring out the feathers. I may have to include handles like I had in the first post to assist with the feather angles and then interpolate between them with xpresso. I'm not sure yet.

I'm trying to get something like this although I'm focusing on the primaries and secondaries right now.

http://i179.photobucket.com/albums/w289/TheRaptor365/misc/wing-feathers.jpg


//edit: Here's a quick test of the unfinished rig.

6872832

Tom Marshall
10-02-2009, 06:54 PM
Well, I haven't gotten to learning rigging yet, but that looks pretty good to me... :beer: