Inverse Kinematics: Dan Ebberts

[Dan Ebberts]

Hi Jarod,

The hand does become detached if you move it far enough that the arm pieces can’t reach it. Is that what you mean, or are you seeing something else?

Dan

[Jarod Gibson]

I am seeing something else.
For example, if I were to replicate the arm you animated on your website, the hand would not stay attached even that much. It’s like it’s held together with loose threads….
Thanks!

Jarod

[Filip Vandueren]

I’ve noticed the following issue with Dan’s script:

the script assumes that the solution for the initial pose is 0 degrees for both limbs, the standard pose of the model should be a fully stretched leg.

so if you design your leg to be a bit relaxed (bent a few degrees), there will be an error.

[Dan Ebberts]

That’s true. I have a newer version that eliminates that problem. I’ll have to dig it up and post it.

Dan

[Filip Vandueren]

I’ve been working on a ‘super’ inverse kine setup with toes that automatically bend while they’re still touching the floor, and feet that don’t disconnect from the limbs.
I’ll post it one of these days for some feedback.
My wife is creating an animated short and I thought: why not rig the entire model ?

There’s a lot of stuff going on actually: gyroscopes (the head stays level), there’s a point of interest for the eyes and head, and I even experimeted with automated inertia in the character’s hair 😎

Promise I will post as a case study, so we can all go nuts tweaking the ‘bionic expression woman’

[Jarod Gibson]

Thanks guys. I will try starting the arm at 0 degrees. Can’t wait for those other expressions you mentioned. Thank you both!

Jarod

[Mike Clasby]

Looking forward to Dan’s and Filip’s latest and greatest.

Christmas in May… hooray!

[Michiel Wesselius]

Hi Dan,

Thanks for your great IK-tutorial!
I have one question though; is there any way to set up the limbs with constraints instead of setting the rotation to either cw or ccw?

Regards,

Michiel