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I need help regards of reseting rotation of mirrored object.

I duplicated eye object of my character and wanna to rotate them (both eyes) via action. I wanna use one action for both eyes, but: eyes are rotating in different direction even if the values of axes is the same.

Please for one quick kick.

Thanks a lot.

Updated with screenshots

Left and right eye rotated by 40 degrees Z-axis (same value but different direction) 40 degrees Z-axis

This is what I expect This is what I expect

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  • $\begingroup$ How did you duplicate those eyes objects (via Mirror modifier ? if yes, did you apply it ?) and what kind of "action" do you use to rotate ? $\endgroup$
    – Mr Zak
    Commented Jul 22, 2016 at 16:49
  • $\begingroup$ I just duplicated the object, mirrored - no modifier, and applied transformations to reset axes. $\endgroup$
    – Miroslav Endyš
    Commented Jul 25, 2016 at 6:01
  • $\begingroup$ Do you mean rotating objects individually ? It depends on pivot point then. Not sure what was meant to be "reset rotation" though. $\endgroup$
    – Mr Zak
    Commented Jul 25, 2016 at 8:18
  • $\begingroup$ see updated with screenshots $\endgroup$
    – Miroslav Endyš
    Commented Jul 25, 2016 at 13:25

1 Answer 1

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Ok, so we have a scene with a pair of mirrored objects. I am using arrows because they have a clearer direction than spheres.

enter image description here

Supposing that they are created with a mirror modifier, you will have something like this in your modifiers panel:

enter image description here

Now, if you rotate the eyes in edit mode, you get this:

image description

To spin the eyes differently, you will have to separate them from each other. This is a destructive operation.

(Personally, I would first back them up to another layer. To do that, duplicate (Shift + D), then cancel the grab (right click). Then move the copied object to another layer with m.)

Apply the mirror modifier by hitting apply here:

enter image description here

Then, in edit mode (Tab) hit P and select By loose parts. Now you have two objects, but their centers are off:

enter image description here

Select one of the eyes and hit Ctrl + Shift + Alt + C and select Origin to Geometry.

Now you can happily rotate the eyes independently. To make the eyes move in synch, go to constraints:

enter image description here

There, Add Object Constraint > Copy Rotation (second row, second collumn). Then pick the other eye as Target:

enter image description here

Now the objects rotate in synch:

image description

You can also make it so that the eyes look at a point in space. First, add an empty to be that point (Shift + A > Empty > pick any you want.) Put it where the eyes look. With one eye selected go in Constraints and add Track To. Select the empty as the Target. If the eye points the wrong way, play around with the To: and Up: parameters until it works. Repeat for the other eye. Here is the result:

image description

I hope this helps.

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