MHX IK issues with "Keep DAZ Rig"
DrGonzo62
Posts: 362
Hi,
I just discovered that keeping the DAZ rig when converting to MHX via Diffeo cause IK issues for me.
Without keeping the DAZ rig, IK is working fine and the feet stay planted (purple figure).
When I do keep the DAZ rig, the feet are moving/rotating (greenish figure) despite the IK controller actually staying in place.
Why is that, and can this be fixed?
I do like to keep the DAZ rig to quickly apply poses, but I can't have the feet move THAT much.
Thanks!
DAZ-Rig-problem.jpg
1025 x 734 - 20K
DAZ Rig problem settings.jpg
339 x 541 - 38K
Post edited by DrGonzo62 on

Comments
Yes it seems there's some quirks with "keep daz rig" in MHX. As a workaround it seems to work fine enough without poles, so you may want to try it. Now reported to Thomas, I came up with some fixes though I'm not an expert in MHX so Thomas may fix it better.
https://bitbucket.org/Diffeomorphic/import_daz/issues/2574/
update. This is fixed in the last commit, now hands and feet always stay in place, and there's also ik stretchiness in the daz rig if we choose the option for mhx. For ik stretch to work it is important to unlock the figure in daz studio to import the ik poses. Thanks to Thomas for this nice improvement.
https://bitbucket.org/Diffeomorphic/import_daz/downloads/
https://bitbucket.org/Diffeomorphic/import_daz/wiki/Posing/Save Pose Preset
Thank you very much, Padone!
I'll try it again without creating poles and using your copy rotation constraint fix.
While the motion of the feet when keeping the Daz rig isn't all that much, it still looks silly when a person is standing
with their weight on their feet and the feet are still somehow moving during an animation. That kills any kind of realism for me.
Thanks for bringing it up to Thomas!
Hi Padone,
Turning off Poles didn't make a difference for me.
Not sure why that worked for you.
I'm on Diffeo 4.5.0.2698
Update:
Changing the Target for all leg bones to Local space with owner orientation does keep the feet planted in place without them sliding when moving the Hip. I left Pole Targets on as well since it didn't make a difference for me.