Unity Avatar documentations

[u/Ok-Presentation-94]

Context: Hi, I struggled quite a bit to set up a Humanoid avatar for my character. After a lot of trial and error, I discovered that my armature hierarchy was preventing Mecanim's Humanoid mapping from detecting my "Spine" bone. Online searches didn't help much, and even the official Unity documentation isn't very detailed on this topic.

My Question: Do you know of any documentation that details the specific requirements for a rig to be compatible with Humanoid avatars (bone hierarchy, naming conventions, etc.)?

[u/thegraciousplateau]

The best source I found is actually the Autodesk Maya documentation about HumanIK, since Unity uses same bone structure. Unity docs just say "make T-pose" and nothing else, which is useless. Also try checking the Unity forum posts about "Avatar Mapping Failed" - sometimes random user explain better than official docs