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How to make a bone NOT inherit location from parent? Or how to position bone at world location?

Discussion in 'Technology' started by The Good Book Dev AIV, Oct 8, 2018.

  1. Lets say I have two bones, A "Root" bone and a "Child" bone, the "Child" bone has the "Root" bone set as its parent. How can I make it keep its world position while the parent moves?

    Now, the reason I ask is because I want to create some "root motion" animations for UE4 (which I have gotten working) but since the root bone moves during the animation, its really hard(or as far as i can see; impossible) to keep the IK targets I use in the same place while the "Root" bone moves.

    As an example see webm-related: http://webmshare.com/nq8qa (I'm aware that this animation is horrible for root motion and in this case it won't be used)

    But in that rig I have the head as the root bone, when it bobs up and down I'd still like to be able to keep the IK targets located at the feet still without bobbing with the head bone!

    Any suggestions on how to do this? The easiest thing would obviously be if I could copy the world position of a bone and then paste it on the next keyframe, but I can't for the life of me find that sort of functionality!

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