Help! need serious help! with char_setup

Xsi
1

I am stuck right at the beginning when i am trying to setup the leg, toe skeleton. I've done all the tutorial from Ed_harriss home page about setuping character. However, i still can't figure out what i want to do.

Alright, here is my problem: I am setting up 3 chains of bone from the hip to the ankle, to the toe. How do i link, constrain to get when i grap the root of hip bone and move it around, but the end effector of the toe bone will stay in place.

What i did (which fail) is that i made a 2 join bone from hip to ankle, one join bone from ankle to middle of the foot, one join bone from foot to end of toe. I pos_constrain the root of toe bone to the end effector of feet bone, root of feet bone to the end effector of the hip bone.

then i get a control object, "match translation" to the end effector of the hip bone. select the hip bone end effector, pos_constrain to the control object.

Now, if i move the control object. i will get a nice ik join which the feet bone chain and the toe bone chain will follow. I move the hip, every thing below my control object will stay inplace.

What can i do to make, if i move this control object, the toe will stay in place?

I have tried to make another control object which l placed it to the end effector of the feet bone (let's call it feet controller) I do pos_constrain from end effector of feet bone to the feet controller. Well, it behave funny, it is not the way i want. You try it then you'll know what i mean. if i want the feet controller to stay in place with the end effector, i do one more constrain to the feet controller. i selected the feet controller and do pos_contrain to the end effector for the feet bone chain. sometimes work and sometimes doesn't. Even if it works, it doesn't behave what i want.

I want to move the root of hip. but the tip of the toe will stay in place. Also, if i move those controllor individually, i want the toe can stay in place as well. So that i can control them from top to bottom. i don't want to do fk skeleton for the leg(i hate rotating feet, it is hard to get it stick on the ground, always moving, slipping when i animating it)

Alright, thanks for your patient to read my post up to this point. I hope you guys understand what is my problem. I am looking forward to see any help from you guys. Please, help.!!!!

2

Bonjour HapZungLam,

I'm not sure to understand your problem. Here is 2 quotes of your post that leave me confused:

""What can i do to make, if i move this control object, the toe will stay in place?""

""I want to move the root of hip. but the tip of the toe will stay in place. Also, if i move those controllor individually, i want the toe can stay in place as well.""

For the first part I would create a control object that will be child of the control object of the leg effector. I would place this new control object on the toe effector, and pos-contraint the toe effector to this new control object.

Also, I would keep the foot chains (foot+toe) in a separate hierarchy from the leg. So you just apply pos-constraint to the foot root on the leg effector, and everything follows.

Sorry if I misunderstood your problem.

Hope this helps
Salutations - Cheers
Bernard Lebel

3

Since when we walk, first is the heel gets up, then the toe. so that if i grap the heel, i don't want to the toe move. However, toe bone is 1 set of 1 bone chain, same as the feet bone. so, it is kind of like FK.

I've tried your solution. However, it doesn't do the job.

4

i did some screen shots to expline it clearly.

this is the solution you gave me. see if it is what you mean.

this is my old fail solution. this is basiclly the same.