hi all, I am following the book “Introducing Character Animation with Blender” by Tony Mullen. I am in chapter 4 (Armatures and Rigging), but i am kinda stuck at the spine IK solver. It seems that it makes it move erratically when i try to just move it a little bit. not only that, but if i right-click (or escape) the armature doesn’t go back to the rest position, but it take a strange position. the problem is on the bone “IK_spine” (I believe), between “shoulders” and “upperbody.”
i don’t know if i am doing something wrong (most likely) or something is missing in the book. the blend file is in the following link:
Thank you for you help.
PS. I changed the links to reflect the correct blend file. sorry for the confusion.