I've rigged a model and applied automatic weights. I went into weight painting mode to touch up and refine the bendy parts, I selected the left thigh bone and applied mirror with topographical mirror.

I swipe here to showcase for the second picture highlighting my issue.

This streak across the auto-weighted area stays in the same spot when I select the right thigh as shown here:

Streak stays behind and does not seem to be affected by mirroring.

It seems like mirroring does not work, it pastes changes from one side to the other after the options become enabled. I've been fiddling a little bit with the options to find out how to edit the pre-existing weights and have the operations applied for the bone's siblings as well. I also note that when topographical mirror is not enabled, the changes are not even applied in any form to the other bone. I appreciate any help and information to help with this problem, or if I'm misconstruing some options and coming to bad conclusions.

  • $\begingroup$ I tried the same thing and had the same problem. I will mention that this is supposed to work. side note: are your bones named correctly? $\endgroup$ – Millard Aug 20 '19 at 2:00
  • $\begingroup$ I believe so, unless blender is case sensitive. The name of the bone mapped to the vertex area I was painting on is named thigh.l and it's sibling bone was thigh.r . $\endgroup$ – Halloween Never Ends Aug 20 '19 at 5:09
  • $\begingroup$ That should probably work, but if you want you can try renaming those two bones to thigh.L and thigh.R, but I don't think it will make a difference. This is annoying, because this is supposed to work, but doesn't for some reason. $\endgroup$ – Millard Aug 20 '19 at 13:21
  • $\begingroup$ I believe there is a way to mirror the weights after you have already made the adjustments on one side, but I'm not sure where that option is found. $\endgroup$ – Millard Aug 20 '19 at 13:22

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.