Change position of bones and layers, even post-animation?

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Reindeer
Posts: 269
Joined: Sat Oct 17, 2015 8:13 am

Change position of bones and layers, even post-animation?

Post by Reindeer »

After a long pause I’m using Moho again and I’m finding it as good as always but also some rust has set in… so I'm facing a certain degree of re-learning.
One thing I have never really grasped about the rigging process is how, if even possible, to change the position of bones and their relative layers after a rig has been completed and animated.

Say I’ve finished a rig. I’ve animated my character in a walking cycle but want to move the position of one of the legs (bones and layers) closer to the other leg.

The tool that looked like it could do the trick is Offset Bone, which will move a bone or a set of bones (say thigh, shin and foot) and nicely carry the parented graphics along.
But it will only change the position of the leg on frame 1, leaving frame 0 as it was. Which creates a confusing situation of what looks like two different rigs on frame 0 and frame 1.

So... is there a way to change the position of bones and their layers even after animation has been added? It sure would be handy...! :)
Daxel
Posts: 1081
Joined: Wed Mar 27, 2019 8:34 pm

Re: Change position of bones and layers, even post-animation?

Post by Daxel »

Exactly! Repositioning of bones post-rigging is something we all have wanted to do at some time, and I wrote a small proposal for the offset bone tool to have an option to do that, here: viewtopic.php?t=34448

At the end of that proposal I talk about the solution I used at that time that used a very useful script tool by hayasidist, "bake frame", that allows you to create a frame 0 with the points exactly how they are positioned at a given frame, even if they are being moved by bones. Read it to know more.

Right now, we are lucky to have a new amazing and feature packed Transform Rig script tool by Eugene (Mult Rush) that was made specifically to edit rigs, reuse limbs and all sort of cool super necesary and poweful features:




About how the already made animations respond to repositioning your bones, Mult Rush's script is able to adapt the existing actions to the changes you make to your rig. I'm not sure if you can have your main timeline animations adapted too, but you can always temporarily convert them into an action just to have them automatically adapted by the tool. Maybe there is an easier way, I still don't deeply undertand all its features.
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