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I have made a rigged right hand for a character and I'm trying to mirror it to make a left hand. Please refer to the image trying to mirror a hand

It doesn't seem as if I could use the mirror modifier to do this. If I select everything the modifier tab disappears. I tried to do this in a seperate file that only contains the hand and its rig, and selected the parts of the hand without the rig; was able to add a mirror modifier but as soon as I tried to select a reference object I get an error message at the bottom saying failed to set value.

Please help me with this.

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  • $\begingroup$ How did you rig your character, is your character made of one object or several objects? $\endgroup$
    – moonboots
    Commented Apr 23, 2022 at 15:46
  • $\begingroup$ @moonboots every piece of armour or body part is its own object and is directly parented to a bone, there's no armature deform. it's the same with the hand, every segment is parented to a bone individually $\endgroup$ Commented Apr 23, 2022 at 15:56

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In Edit mode, name your bones correctly (with the _R or .R suffixe for the right limbs), select all and go into the Armature panel > Symmetrize:

enter image description here

Select your objects, duplicate with ShiftDEnter and in the Object panel > Mirror > Global X (or CtrlMX):

enter image description here

Now parent each limb to each bone: Select the object, shift select the armature, switch it to Pose mode, select the good bone and Set Parent to > Bone.

Second solution: Symmetrize the armature, join all your objects into one, remove one half, give it a Mirror modifier in order to symmetrize:

enter image description here

Now parent the Object to the armature With Empty Groups. It creates an Armature modifier under the Mirror and it generates a series of vertex groups in your mesh, but for the moment the vertices are not assigned to any vertex group. Select a finger with L, select the vertex group to which it is supposed to be assigned to (here f1_R) and click on the Assign button:

enter image description here

When you have finished with one side, the opposite side will work as well, you can apply the Mirror modifier.

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  • $\begingroup$ Thank you for the detailed answer! However, when I try to Symmetrize nothing happens, there's no dupliated symmetrical armature like in your images $\endgroup$ Commented Apr 23, 2022 at 16:27
  • $\begingroup$ have you correctly named your bones? $\endgroup$
    – moonboots
    Commented Apr 23, 2022 at 16:27
  • $\begingroup$ It works now after I named the bone in the format in your image! I'm following the next step thanks! $\endgroup$ Commented Apr 23, 2022 at 16:44
  • $\begingroup$ @Egoless If this answer was satisfactory, please click the check mark by the top left of the answer to show it is what you wanted. $\endgroup$ Commented Apr 23, 2022 at 16:46
  • $\begingroup$ can I maybe ask if there is any possible way to avoid having to redo the parenting individually for each bone? Is it possible to have the parented relationships between the objects and the bones mirrored across too? (because the hand has 30+ joints...) $\endgroup$ Commented Apr 23, 2022 at 16:58

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