blender_mmd_uuunyaa_tools
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UuuNyaa
Rigify to MMD, chest not rotating with lower body
Tried multiple version of blender (2.83, 2.93, 3.2) and respective rigify, all having the same issue that chest and above (spine_fk.002 bone) not rotating with the lower body. It happens with vmds that I imported with MMD Tools. It seems that spine_fk.002 is expected to be parented to spine_fk by the animation but they are actually not. Is this a known issue? I can't seem to find a blender version that this is working.
Also with blender 3.2 I am also experiencing the issue that the ik of legs are broken unless I delete the mmd_uuunyaa_leg_ik_parent.L/R bones.
Manually adding a child of constraint to parent spine_fk.002 to spine_fk for only rotations seem to fix the issue. Not sure if this can be a permanent fix implemented into the addon
Thank you for the report 😃
I experimented with the following assets, but could not reproduce the problem.
- Blender 3.2.1
- .pmx https://github.com/UuuNyaa/blender_mmd_assets/issues/33
- .vmd https://github.com/UuuNyaa/blender_mmd_assets/issues/35
https://user-images.githubusercontent.com/70152495/183357274-08b13fab-7ce4-40f8-bced-2f59dcbeff0d.mp4
Can you share the model and the motion with me to reproduce the problem?
Oh, I am using the default metarig that rigify came with because that's what I used to rig my own character. In your demo, your rigify rig is generated from the MMD rig, that probably generates a different rig from the default rigify rig.
I tried using Sidebar > MMD > Rigify to MMD: Convert to MMD compatible with defautl metarig and could not reproduce the problem.
https://user-images.githubusercontent.com/70152495/183374492-1f8f3392-5700-40d4-86a6-19d247016cf5.mp4
Can you show me the detailed reproduction steps?
I tried your VMD file it works on my side too. Maybe it's an issue specific to this VMD? I had no issue playing this VMD on an imported MMD model though.
Thank you for sharing.
I found the problem to be due to a combination of Convert to MMD compatible and the .vmd motion.
I will look into the cause.