Rigged through Blender (Rigify) and Errors in Unity

Question

I am working on a Unity scene and as the 3D model is missing the bones, I ended up going to Blender for the rigging.

For that, I followed the procedure that Unity suggests by using the add-on Rigify. I was also following this tutorial, which was really helpful.

After exporting from Blender (in .fbx) and importing it on Unity, I went through the configurations (as @vcard suggested here)

In the "Rig" section, I pressed the button "Configure" (to configure the Avatar Definitions) and came across an error "Character is not in T pose".

I solved this one quite fast by accessing the menu "Pose" (in the Inspector) and then "Enforce T Pose".

After that, back in the scene, I came across the following error on the Inspector:

Invalid Avatar Rig Configuration: Missing or invalid transform: Required human bone 'Head' not found.

I went straight to the configurations and decided to add the specific bones to the Head that appeared on the inspector (in the Avatar Definitions configurator). With that, I came found out that the problem is really the organization where there were placed by Rigify.

Any guidance is appreciated.

Answer 1

As I didn't find the ideal order for the structure that allowed Unity to recognize the existence of the bones 'head' and 'neck' (that were present), I ended up using another platform: Mixamo (check here how to upload and rig 3D characters).

I strongly recommend Mixamo as it is online, free and super simple to use.

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Process

1. Start by uploading the character:

2. Press "Next".
3. Place the markers. If your character is symmetric, before positioning the markers, activate "Use Symmetry" (which simplifies even more the task).

That's it. This is the Skeleton view in the review process:

Then I downloaded it in the format "FBX for Unity" and imported in Unity.

Now the Santa can finally close its arms: