To a freely available 3D model of a kangaroo I used Rigify in Blender 2.90.1 to add an armature. Now that I have added all the bones, I wanted to generate the rig.
Unfortunately Rigify reports an error about a disjoint bone position, but I have no idea how to fix the problem.
RIGIFY ERROR: Bone 'spine.003': Cannot connect chain - bone position is disjoint.
Incorrect armature for type 'chain_rigs'
One you fix this you’ll get a similar error about the arms. That’s because your arms are a chain of 5 connected bones. Here is a possible solution:
Oh, and then if you try to parent with Automatic weights once the rig generates, your mesh will move. That’s because it already has some sort of a parent. You have to alt+P the character, and choose Clear and keep transformation.
And then you’ll get a “bone heat” error. You can select all vertexes of your mesh and perform Merge by distance.
No problem
The mesh is moving? I just gave the new file a try and it didn’t move when I applied Automatic Weights.
But I did get “Bone heat error”. That’s because the vertices of the model are not merged together. In Edit mode, select all vertices, Merge by distance. Then parent with Automatic Weights and it should work. I am using 2.83.8 here but it should be the same in 2.9
*(just checked, works the same in 2.9 )
Maybe I am explaining it wrong. Here is a file I tweaked, the character is now operational. I fixed the problem with the disconnected vertices (just merged by distance as I said above). The meta rig had a few parenting problems that I tweaked quickly. That’s it.
You can select all vertexes of your mesh and perform Merge by distance.
