thanks for the suggestions everyone - i was just thinking it the wrong way ;) turned out that i could use a turret like setup to almost get to where i want. not perfect but will do the trick.
cheers flo On Wed, May 9, 2012 at 2:31 PM, Sven Constable <[email protected]>wrote: > I think I did a similar setup 2 years ago. I don’t'know your character/rig > situation but it's just about the restrictions in the rotation-planes? So, > one joint rotates in xy and the underlying should only rotate in xz for > example, but within a usable IK chain.**** > > ** ** > > When I have the time, I will check out that scene, but it was something > with a few constraints, '1bone-IK' chains and expressions (to limit > position of the effectors in 2d planes)**** > > ** ** > > So, you're right. I think, its not possible with a 2bone IK and nothing > else :)**** > > ** ** > > regards**** > > sven**** > > ** ** > > *From:* [email protected] [mailto: > [email protected]] *On Behalf Of *Florian Eberle > *Sent:* Wednesday, May 09, 2012 12:38 > *To:* [email protected] > *Subject:* [Rigging] Robot IK Legs**** > > ** ** > > hello people > > banging my had about a rigging setup here: > i have a rather stiff robot that needs to be rigged and i'm struggling > with the IK-setup for the legs. > the problem is the structure of the robots hips. it's very restricted in > that it only has two hinge joints. > one that allows the leg to rotate front/back and the other rotates out/in, > rotation along the leg is not possible. > the two hinges are not in the same place (obviously) so i have different > rotation points. and to complicate things even more: > the knee does not lie on the legs 'plane' but is offset a good amount. > > after some very frustrating tries i'm reasonably sure that it's just not > possible to rig with the built in two bone IK. > can someone prove me wrong here (or at least tell me i'm right)? > > i'd appreciate any hints, tips, trick and references > > thanks > > -- > Flo Eberle > Lead Modeling Artist/ > Technical Director > > **** >
