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im trying to rig the character of Lol Ahri in Blender 2.9, i want her to walk and wave. I downloaded the object(ahri), and used the basic human armature. i downloaded the object(ahri), and used the basic human armature

But when i try to parent the model with the rig, it shows me the error "Bone Heat Weighting: failed to find solution for one or more bones". I tried to use automatic weigths i choose automatic weigths the error

So i started looking for solutions, this is what i tried: MERGE BY DISTANCE (or remove doubles), scaled up, decimate geometry, delete loose, remove all modifiers, any of the bones are showing off, just using a single bone, changed the merge distance to 0.002, and placed the root bone at the center of the model. here i removed doubles enter image description here

the link to the project is: https://pasteall.org/blend/af6843868fb648748cb9687925586701

if you could help me i would be very grateful :)

Sofia Noguera
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  • weird because merge by distance make it work, even though it won't be properly parented and you need to bring some corrections afterwards – moonboots Jan 30 '21 at 04:34
  • You only used that option and worked? Maybe i have to reinstall the program? And if you could please tell me what corrections i have to make – Sofia Noguera Jan 30 '21 at 14:04
  • https://blender.stackexchange.com/questions/69892/bone-heat-weighting-failed-to-find-solution-for-one-or-more-bones-error-message Removing non manifold geometry from mesh (select non manifold verts & delete to test) removes the warning also. Also recommend making the rig scale unity (1, 1, 1) by applying scale. – batFINGER Jan 30 '21 at 14:09
  • Thanks! I'll try it – Sofia Noguera Jan 30 '21 at 14:39
  • It worked!! Thanks :))) – Sofia Noguera Jan 31 '21 at 02:35

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Thanks to batFINGER! Im going to post the solution in photos, maybe helps someone who was a little lost like me :))

Select only the object and choose edit mode, there click in select, and then select all by trait. There select non manifold. enter image description here

In the box that apears in the bottom, deselect Verticesenter image description here

Still in edit mode go to mesh, select merge and click in By Distance enter image description here

Now try parenting in object mode enter image description here

And for me it worked :) enter image description here

Sofia Noguera
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