IK Spline issue

[Anonymous]

Hello, I have been having this issue for a few days now and have yet to find a solution to it. For some reason, when I try to move my rig's master control the IK spline I have on the tail is offsetting and moving away from the rest of the rig. I tried to see if it was an a problem with the translate values, or if I just needed to clean up the contraints but nothing has worked, and in some cases made it worse. Not only this, but the top of the Spine ik is bending forward when I try to move the rig back. I provided pictures of what I'm describing. Hope to hear from someone soon. Thanks! 

[gautham.chandran47]

It looks like there is a double transformation happening. The IK Spline curve should be outside the control rig or joint as it will be controlled by the IK itself. Please try unparenting the IK Spline "curve" and move the controller. 

If the issue is still there, please share the rig for further assistance. 

[Anonymous]

Hi! I actually have a dropbox link to it in this thread, sorry if I put it in the wrong topic I didn't realize it when I made the post.

https://forums.autodesk.com/t5/maya-forum/ik-spline-issue/m-p/8675067#M70393

[gautham.chandran47 · Accepted solution]

As I mentioned before, it seems there was a double transformation. You can refer the screencast attached with this.

[Anonymous]

I can't believe how easy of a fix that was I didn't even notice!
Thank you so much you've been a big help! Also, do you know what the issue with the spine bending forward is? Do I just have to parent that to the head joints?

[gautham.chandran47 · Accepted solution]

All the joints should be under the main controller. You can just group all joints and parent it under the main controller.

[Anonymous]

Ok, that did it! One last thing and I'll get out of your hair, the spine doesn't want to move at all unless it's with the main controller. If I use the hip controller or if try to rotate any of the joints on the spine it doesnt move or rotate at all. Should I just add controllers to the spine curve like I did the tail? 

[gautham.chandran47 · Accepted solution]

You can create a separate controller for the upper body and parent that controller to the spine curve instead of the main controller. And parent the upper body joints, head controller and hand controllers under this new controller.

I've attached a quit fix file which I did all mentioned things for your reference. Note that there is only one Hip controller, feel free to add more if needed.

https://drive.google.com/open?id=12I4cUM4LPtKVt1mMQuXgAVZ_w2txIJKw

[Anonymous]

That's fantastic! Thank you so much, you've been a huge help

[gautham.chandran47]

Happy to help  

Happy rigging.