Hi All,
I’m encountering neck issue when retargeting my metahuman to FAB anim packs and depending on the anims, my jaw submerged into the neck during certain action like kicking, and have a snail-like shape (refer to attached) during idle on certain anim pack.
What is the probable root cause and how to fix this?
Thanks in advance.
JK
Hello there @JK_Peng!
Considering your setup, and the result in your screenshot, this sounds more like a retarget issue, rather than something wrong with your Metahuman itself, as it only happens with a particular animation pack. Checking with my peers, there a few parameters to evaluate here:
First, double check your IK Retargeter chain mapping, make sure that the neck and head chains are mapped correctly between the source skeleton and the MetaHuman skeleton
Also, confirm that the neck bones (usually neck_01 and neck_02) are both mapped, no “end” bones are included in the chain, and said chain is isolated, not tied to the spine chain
Ensure the poses, scale, and rotation between target and source are alligned, specially in the areas around the neck, as any small difference will result in deformations
If there’s one specific animation pack where the retargeting works as intended, then check it’s details and setup, comparing it to the others, to see what makes it different
Finally, it always helps to review the UE docs related to the feature in question. Please review the retargeting process here:
Hi @brs-sebascova,
Thank you for your response. I’ll investigate based on your recommendation.
Cheer.
