Spine IK option

jwcjaygaines

In the blogspot for Diffeomorphic, it shows that there's an option to create a Spine IK controller, but no matter which version of Blender I use to import a model, those options are not showing up. By default, I still use 3.0, but I even tried it in 3.6, and it still wasn't there. Pretty sure I have the most recent version of the add-on installed as well. So I found a guide from Royal Skies on YouTube that details how to create one using a new bone between Spine 2 and Spine 3 (on an MHX rig, it's Spine-1 and Chest). The issue I'm running into is that the Chest and bones above that are changing position between Pose and Edit modes, essentially squishing the upper torso, and I'm not sure if it has to do with the driver the guide shows, or perhaps the constraints order that already exist for those bones. I asked on the YouTube video about this, but since the video is 4 years old by now, I doubt I'll ever get an answer. So I've come here to ask (perhaps the amazing Padone) how I would go about mimicking the process of how Diffeomorphic would create that. Basically, just manually do what the program would have if I had the option available. I'm sure it's probably something simple. Any help?

Padone

First be sure to update to the development version that's 4.1 now, especially if you use blender 4 or G9 there's lot of fixes there. You need to update both the importer and the mhx addon. Then spline-ik is an option for mhx when you create the rig. In animation you can activate the control in the MHX panel. The documentation is not up to date yet but the option is there.

https://bitbucket.org/Diffeomorphic/workspace/projects/DIF