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Bone wiggle drive vertical bone (or points) position?
Posted: Tue Feb 03, 2009 12:29 am
by madrobot
I'm doing a test using bone wiggle to drive the mouth.
But of course it gives you rotation. And I can't constrain
a bone to have its position driven by another bone's
rotation (can I?)
So the movement is along an arc.
Any ideas how I could get that along a path,
up and down?
Posted: Tue Feb 03, 2009 12:33 am
by Genete
Bind the point that needs to travel up and down to two bones (50% to each) that rotates in different directions but aligned properly. Both would pull/push from/to the bone to the same direction when rotate. Obviously it has a limit. You cannot push/pull the point upper/lower than the distance to each rotation center of each bone (that has to be the same for both).
If you don't get it by your self, ask again.
-G
Posted: Tue Feb 03, 2009 1:06 am
by heyvern
Posted: Tue Feb 03, 2009 1:55 am
by madrobot
Thanks!
What a fantastic community
Posted: Tue Feb 03, 2009 2:26 am
by synthsin75
Yeah, when I saw the topic title, I immediately thought of Genete's springy rig. Genete's finally done so much he's forgetting some of it.
Posted: Tue Feb 03, 2009 4:52 am
by heyvern
The cool thing about this is that if you have clean dialog without music or sound effects is that it works really well. I used a piece of dialog I had from another project that was done in a studio and had no other sound but the voice. The bone wiggle really did a good job matching up with the sound.
I used a lower rotation limit on the upper lip bone. I had to use a huge value on the lower lip bone to get any noticeable motion. It must be based on the max volume of the sound.
-vern
Posted: Tue Feb 03, 2009 5:14 am
by madrobot
Yep I think on my current deadline
this trick might just save me
Posted: Tue Feb 03, 2009 7:14 am
by Genete
Yes, I know. But I was lazy yesterday.
