Moho Animation Forum

Hello friends,

Any tips to make switching from IK/FK and vice-versa not move the limbs?

I've got a smart bone doing the switching but every time I switch them there is a slight movement in the arms, no matter how much I try to adjust the IK.

Just wondering if there might be some tried and true tricks out there to avoid this

Thanks,

PS
Oh, and is there a way to control the elbow when using IK? I need an arm to rotate both ways but with IK on, it only rotates one way...
Of course, disabling the IK, rotating the arm, then enabling IK again works. Just wondering if there's a better way.

Use the Manipulate Bones tool. By default, it works in IK mode, but to rotate only one bone (FK mode), hold Alt. This combo is very useful for quickly animating a character.

I wish there was a mode to move the bone's position as well with the tool. It can do that, but only for the root bone in a chain. Having the ability to scale would be another plus, eliminating the need for two separate tools.

Hope this helps.

FYI, I seem to recall someone wrote an all-purpose bone tool that combined the main features. This was a very long time ago, though, and I'm not sure it's still available or whether it works in Moho 14.x, but it might be worth seeking out.

Oh, duh! I totally forgot about MR Pose Tool. This is a different tool from what I mentioned earlier, and it's also way more powerful:

Mohoscripts Link: MR Pose Tool

I have it installed, but I kept putting off trying it out. I think I'll learn how to use it today.

(I swear, Eugene makes sooo many useful tools, it's difficult to keep track of them all. But this is a good 'problem' to have.)

Greenlaw wrote: ↑Tue Apr 14, 2026 9:09 am Use the Manipulate Bones tool. By default, it works in IK mode, but to rotate only one bone (FK mode), hold Alt. This combo is very useful for quickly animating a character.

Oh, thanks! I had no idea you could do that. Will give it a try.