CGTalk - facial rigging

flyingP

07-13-2003, 06:02 PM

Any of you guys got any good sugestions on facial rigging in Cinema, I am trying to rig the face of my alien thing from a while back and are using bones driven by expresions at the moment, it is getting complicated though and I am not quite getting the shapes that I'd like, aslo tried spline deformers but didn't like the results there either, is moving the points manually the only other option?

Stray

07-13-2003, 08:11 PM

Why don't you morph that puppy?

anyways. You have to break it down to what an actual part of the face is doing.

It is usually a good idea to use bones for the jaws. Seeing as the jaw does rotate around a pivot point. Another thing to think about is if the eyelid (does it have an eyelid?) should be morphed or boned.

Morphing doesn't rotate points around a pivot point. So you could get a little convergence if you are morphing the eyelid (ie the eyelid passing through the geometry of the eye halfway through the animation.) Although in a few tight instances I have gotten away with morphing a blink. i would suggest a bone rotation.

Most other facial transmorgrafications can be acheived through morphing. Smilling, muscle deformations.

Just a few thoughts on it.

I gotta run. i am going to see "Pirates of the Carribean"

Good luck!
-Stray

flyingP

07-13-2003, 08:39 PM

Thanks stray

I have actually brocken it down into seperate parts, the jaw is seperate although it is linked over targets with the lower lip, move the lower lip down and the jaw moves with it, although they can be moved independently, the upper lip and cheeks are working together although once again can be move independently. The eye lids are being moved by spline deformers controlled over a pose mixer object although I am getting some strange results in the eye corners so I'll be looking that one over again. I'd send a render but I've started moving everything around again.
To be honest I think what is needed is some real time looking at the anatomy of this thing again, maybe that I am trying to get it to do things that don't really fit to the anatomy anyway. If all else fails I'll morph it with PLA alhtough there mesh is rather complexand that won't be fun.

All the same thanks for the reply and enjoy the movie. For me I think it's time to sit down with a glass of red wine.

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