Hello.
I'm trying to come up with a solution for making a twisting thumb rig, but im getting nowhere.
The thumb should be able to twist about 3-4 times around itself and start to crease up.
Anyone got any experience or ideas?
Use a lattice animated by a drive key or a twist nonlinear? Just make sure you don
hi dunkelzahn!
Yeah i tried that, the problem is that when i do something like that the parts inbetween the latticepoints gets very small when you twist, the thing i wanna achieve has to maintain some sort of volume, like you let the skin slide and be a bit elastic.
Why do want to twist the thumb? A normal thumb has saddle joint, means it can rotate on two axis front and sideways. It cannot twist the way you describe.
Description of a Saddle Joint:
It
Thanks again for your reply!
Yes i know thumbs work that way, that why im haveing trouble with this effect 
Im trying your way with slight twisting and blendshaping or clustering the wrinkles.
Thanks for the input.
/per
actually... i used the thumb twist all time..
even anatomically its not possible.. but it gives animtor some control..to get otherwise difficult thumb pose.. i just give them attribute on hand control for thumb twist on base thumb joint(between trapezium and carpo metacarpal joint).
i think its all about end result..
sunny