MHX property Left/RIght Forearms Follow hand not work for IK hand
Thomas I do not clear remember all optiions, but I suppose we could make MHK which can IK <> FK snap
perfectly (though we need to set some options correctly, eg No rotation limit and not follow hand for twist bone, to get perfect snap)
But today I check pose with snap IK <> FK now it show twist bones rotate slightly.. which option I set..
I think I forgot some important option when convert MHX.
Convert MHX auto set those? or I need to set option untill convert as MHX?
(eg,, Connect IK chains etc)
Comments (7)
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reporter -
reporter - changed title to MHX property Left/RIght Forearms Follow hand not work for IK hand
- marked as bug
- marked as major
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reporter The problem is, with FK, if I switch (Arms follow hand)
forearms L / R bone constrain for hand FK, copy rotation toggle.
(disable/enable)
but with IK, constrain for hand IK, copy rotation not toggle.
so always it try to copy rotation with influence as 1.00
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reporter I could confirm, if I disable IK bone constrain (copy rotation)
for both arms, I can still twist Forearms and hand separatelly with IK, but snap FK<>IK perfect fit (non deform)
you may just need to set the bone constrain as un-visible with IK, as same as FK. (FK auto toggle , so forearmas not follow hand rotation when disable)
without it you should see, twist bone rotate when FK<>IK snap, even though you disable forearms follow hands.
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reporter I can not confirm other setting clear, but in fkik.py 810 >>
def setForearmFollow(amt, context, prop, suffix): rig = getMhxRig(amt, context) follows = getattr(amt, prop) pb = rig.pose.bones["forearm"+suffix] for cns in pb.constraints: if (cns.type == 'COPY_ROTATION' and cns.subtarget == "hand.fk"+suffix): cns.mute = not follows break # add IK mute Start for cns in pb.constraints: if (cns.type == 'COPY_ROTATION' and cns.subtarget == "hand0.ik"+suffix): cns.mute = not follows break # add IK mute End
Then you can toggle (mute) Forearm not follow IK hand constrain for copy rotation.
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repo owner Fixed in last commit.
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reporter - changed status to resolved
Thanks It work !!
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Yes I feel, with recent version, Left / RIght Arms follow hand option, not work. because even though I disable it for perfect snap, when I twist ik hand along with local Y, forarms bond twist >> it should cause snap issue