0
$\begingroup$

So I'm using a Damped Track constraint and over that a Limit Rotation constraint as I only want the bone to rotate in X axis. This is the only setup I get it "working" but it has one tiny mistake, it rotates it a little bit to one of the sides, when it's not supposed to.

enter image description here

Even weirder is that if I take off the Limit Rotation constraint and I make it so the bone naturally only rotates on the axis I want then it looks fine (but I need the Limit constraint).

enter image description here

I would really appreciate any ideas, thanks!

Note: if I change the Convert option to anything else other than Local (or Local with Parent) then it goes all over the place.

--- EDIT ---

After doing Locked Track as constraint instead of Damped Track and Limit Rotation the rotation still happens, even when I'm not moving the tracked bone in X:

enter image description here

$\endgroup$
  • 1
    $\begingroup$ Its x axis rotation isn't necessarily what you think it is, because transforms are matrices that are converted to Eulers for evaluating constraints, and there isn't a 1:1 correspondence between Eulers and actual orientations (XYZ euler 180/0/0 == XYZ euler 0/180/180.) For people that don't know their 3D math inside and out, which is almost everybody, Euler angles are alluring but deadly sirens. If you want it to be limited to a single axis of rotation, use a Locked Track constraint instead. $\endgroup$ – Nathan Dec 19 '19 at 11:58
  • $\begingroup$ @Nathan thanks, I hadn't seen that constraint and it seems to work fine like those other two but that tiny rotation still happens o,O I'll add the screenshot to the main post. $\endgroup$ – Opponent019 Dec 19 '19 at 20:39
  • $\begingroup$ "Tiny rotation"-- don't give it a limit rotation constraint. Only use the locked track constraint. $\endgroup$ – Nathan Dec 20 '19 at 5:19
  • $\begingroup$ If that's what you have (can't see with cropped screenshot), then we need to see bone axes, and probably a file would be best. $\endgroup$ – Nathan Dec 20 '19 at 5:27

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.