Mixamo anims with a custom rig from Blender. Arms point in wrong direction

Question

My objective is the following:

1. Download Mixamo Animations and use them as a Godot Animation Library
2. Create a Rig/Armature in Blender and reimport it within Godot as a Godot Skeleton (BoneMap)
3. Use the Animation Library I mentioned earlier with my custom model.

Everything works well except for the arms. For some reason each arm translates towards their opposite directions:

I'm not sure what I'm doing wrong. The only way I get it to work is by using my custom model in Mixamo and downloading animation using that model. I thought the model wouldn't matter as long as the skeleton adheres to Godot's Bone layout.

Let me share my workflow, hopefully somebody notices something I'm doing wrong.

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My Custom Character's Blend File:

If we look at my character's Blend File (Not Mixamo Files), this would be my character's setup:

When exporting my custom rig, I use the following GLB export settings:

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In Mixamo

I download the YBot in Tpose (No other Animations)

And then I download the animations I need with the following settings:

Mixamo to Blender

I import both the T-Pose YBot which I use to store all the animations, and I put each animation into one collection called Animations:

I then start adding individual animations into the YBot Armature:

I then export the YBot T-Pose model with its new animations with the same GLB Export settings I mentioned above.

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Godot

After importing both custom model and mixamo animations into Godot (from Blender), I make sure to reimport both glb files after setting a BoneMap to SkeletonProfileHumanoid.

Custom Model

Mixamo Animations Model

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Making Animation Library

First I open the AnimationPlayer attached to my Mixamo Animations Scene and do the following:

• Press Manage Animations
• Make Unique
• Save File

Afterwards I create an AnimationPlayer for m custom character scene:

• Press Manage Animations
• Press Load Library
• Make Unique

After all this, I get the image I shared above:

I'm not sure what I'm doing wrong?

Network

Answer 1

For some reason each arm translates towards their opposite directions:

This is a fairly common problem.

One solution (not the best) is to change the basic pose for correction.

Continuo

Answer 2

Thanks for replying! So you're saying this might be happening due to the A-Pose and by switching over to T-Pose it should work?

Network

Answer 3

So you're saying this might be happening due to the A-Pose and by switching over to T-Pose it should work?

I fear that it's not that simple. In my case, the pose was created and corrected individually. But you can start by trying a simple solution.

Continuo

Answer 4

I followed the link, but I'm afraid I'm a bit still confused. My apologies. What did you mean when changing the basic pose?

In my head, I thought about taking my custom rig, putting the character in T-Pose and that's about it. But I understood it's not that simple. Again sorry being so confused, I've been trying to solve this since Saturday 😅

Network

Answer 5

What did you mean when changing the basic pose?

I wasn't the one making the change. A person did research on the problem and created a posture that partially solved my problem. So more than in that thread I can't report, unfortunately. I'd like to figure out more myself. 😕

Continuo

Answer 6

Thanks for pointing me towards the right direction though! I won't give up, so once I figure it out, I'll come back here and post the solution, hopefully we'll finally solve this mystery.

Network

Answer 7

I won't give up, so once I figure it out, I'll come back here and post the solution

I suspect there's something to do with the orientation of the bones. And it worked fine in Blender 2.93 and problems appeared in version 3.x. I guess we need to look for what changed in this transition.

hopefully we'll finally solve this mystery.

🍻

Continuo

Answer 8

Looks like the mixamo rotations are for T-Pose and you have an A-Pose rig instead.

Hoiden