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I'm trying to rig a game character with rigify and it keeps giving me a "cannot connect chain bone" error for spine.003? The character in question I've combined parts of the animal rig "cat" with Basic metarig human. But the bones that are being flagged are from the human part of the rig with only the large head/face bones and tail being from the cat itself.

Full Error: enter image description here

I've tried having the bones connected and "kept offset" but are virtually occupying the same space both scale 0 to line up but the error keeps appearing. Would anyone be willing to please take a look at the rig and figure out what is going wrong? I've usually manually made rigs with limited features and want to speed up the process wherever I can but I just don't know rigify in order to troubleshoot myself.

Drive link: Character model

enter image description hereenter image description here

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There are many issues on cascade:

The whole face has to be rebuilt, because lots of bones need to have their respective head and tail in the same spot, as you find them in the original Face Sample, so I deleted the whole face system from the Metarig in order to generate the body rig.

The first problem that pops up is the fact that the first tail bone (oddly named ORG-spine.003) has to have its Rigify Type property "Connect chain" unticked.

enter image description here

Now the rig gets generated, but it doesn't create a proper neck-head control: to solve you have to select the metarig, go to edit mode and make sure that spine.004 is child of spine.003 (keep offset), while spine.005 and ORG-spine.011 (another odd name) are connected children of the previous bones.

Then go to pose mode and assign to spine.004 a "spines.super_head" Rigify Type.

enter image description here

Now the body rig can be correctly generated:

enter image description here

Back to the Metarig, in edit mode you can add a faces.super_face Sample, upgrade it to the new Face type, and place its bones, paying attention to move the joints without disconnecting them (in the picture below I marked only some of the groups of joints that need to be moved as a whole, not one by one: as a general rule, always use box select or circle select on a joint, then move it in place).

enter image description here

Lastly, make the Face bone child of the ORG-spine.011 (keep offset), and regenerate the rig.

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  • $\begingroup$ So can I continuously regernate the rig over and over with each iteration? Like add tail generate rig, face generate rig, place face bones generate rig. $\endgroup$
    – SentinelForce
    Commented Jun 2 at 8:52
  • $\begingroup$ yes, absolutely. $\endgroup$
    – josh sanfelici
    Commented Jun 2 at 8:54
  • $\begingroup$ Cool it'll be trial and error cause ive never used rigify before so repsonses might be delayed while I try and work through this. $\endgroup$
    – SentinelForce
    Commented Jun 2 at 9:10
  • $\begingroup$ One thing I will ask. How do I adjust the weights of the rig once I bind the finished result to the mesh? Is it the same as how you would normally $\endgroup$
    – SentinelForce
    Commented Jun 2 at 12:56
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    $\begingroup$ Yes, everything is the same as a standard rig, you will find all deforming bones in the Bone layer named "DEF". All others bones are set to "Non deforming", because they are used for ConTRoL, MeCHanism, or copies of the ORiGinal metarig. $\endgroup$
    – josh sanfelici
    Commented Jun 2 at 13:17

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