Retarget Root Bone Correctly

[Anonymous]

Dear all,

this is my third post here. I am struggling right now to retarget correclty the root bone with HIK. After i have created a root joint for my target rig and parented it with the Hips, i tried to now retarget the source to the target. I encounter strange problems. First problem is that my Joint somehow does not update correctly in the view. If i move frame to frame the root joint connection to the hips stuck in the air. After i change values like IK Pull and change it back, the joint suddenly updates and is correctly shown.

My second problem is that the root of the target stays at 0,0,0 and does not follow the animation like the source does.

I found a post here with the same problem and he solved his problem somehow but constraining the source root to the target root. I tried this and this is the result after using constrain->point:

My target model moves faster than the source it looks like sliding over the ground while doing the same animation of the source. You can see on the picture how far he is already away from the source after a few frames. Target should be exaclty at the source rig.

I really hope you guys can help me here, would love to continue working on my zombie game.

Best,

Damien

[Anonymous]

Update 04-10-2019 22:55:

I just cleared the field of "root" at the HIK target for a test, only Rig without Root is defined for the target rig in HIK. Now the source is faster than the target slightly. This is really strange, i am confused as hell.

Picture 1 (Roots Point Constrained and Target Root Cleared in HIK, Frame 0:

Picture 2 (Roots Point Constrained and Target Root Cleared in HIK, Frame about 30 % , Source is already slightly more on the front):

Picture 3 (Roots Point Constrained and Target Root Cleared in HIK, Frame 100% , Source is much more shifted to the front):

Now i am really confused, is this a MAYA BUG or is there something i dont do correctly? Do i maybe need to somehow constrain the horizontal axis of the target hip to the target root so the hip stays always on top of it? Is this always the case at correct taken mocap animations with root that the hip is direclty on top of the root regarding the horizontal axis?

This happens if i constrain the horizontal axis of the hip to the root (so now the right way):

Just realised that the source is also slightly more on the front at the end of the animation when i completely delete the target root. 😞 i am confused

Thank you for every idea

Best,

Damien

[Anonymous · Accepted solution]

Update:

Ok , now i just constrained the target root to the target hip in horizontal axis via point constrain. I can actually live with it that the source is slightly on the front at the end of the animation, maybe this is connected with the leg length or something but it actually looks good enough now. Thanks guys!

The target is still lifted up, for now i will manually adjust the height via the graph editor after the first bake of the FBX to the second FBX bake.

Best,

Damien