
Waist IK?
I'm trying to make a kneeling animation in Pro, but when I select the root (my character waist bone) after setting up IK and move it down, the characters legs go through the floor. What do I need to do in order to get that working? I'd like to grab the root and have the feet stay planted.
I've seen older post from years ago about this, but maybe there's a simpler solution that has been added.
Thanks!
Answer

Hi Adam,
what you are looking for is called IK Pinning. Simply select the IK handles of the feet. Then in the "channels" view of the Pose Editor, tick the "IK Pinned" property. This will ensure that the feets IK handles stay in place when you move the waist down.
This feature uses the Child-Of constraint under the hood. Please note that there are some corner cases you need to be aware of. Therefore, please watch the following two video tutorials:
https://www.soxware.com/umotion-manual/ProLesson3.html
https://www.soxware.com/umotion-manual/ProLesson5.html
Please let me know in case you have any follow-up questions.
Best regards,
Peter
Customer support service by UserEcho
Hi Adam,
what you are looking for is called IK Pinning. Simply select the IK handles of the feet. Then in the "channels" view of the Pose Editor, tick the "IK Pinned" property. This will ensure that the feets IK handles stay in place when you move the waist down.
This feature uses the Child-Of constraint under the hood. Please note that there are some corner cases you need to be aware of. Therefore, please watch the following two video tutorials:
https://www.soxware.com/umotion-manual/ProLesson3.html
https://www.soxware.com/umotion-manual/ProLesson5.html
Please let me know in case you have any follow-up questions.
Best regards,
Peter