So I picked up a copy of ‘The Essential Blender’ and have been following the rigging chapter to the letter and I’ve run into a small problem that isn’t addressed in the book. The section where he talks about adding a knee to help control the rotation of the lower leg in relation to the foot. Everything works fine until I add the knee bone and move/scale it into place. I have a couple screenshots to better describe what is happening.
In edit mode, I select the lower leg, shift+d, move the new bone forward a little, and LMB to accept. Since I have x-axis mirror on, a bone is created on both sides and everything looks good so far. HOWEVER, when I tab back into pose mode, the new left bone’s tip jumps back to the ankle joint, bending the leg in a weird direction. The right (mirrored) side, however, looks and behaves normally!
Can anyone suggest what I’m doing wrong? (I realize I’m using v.2.49b and not the 2.44 included in the book, but I just installed blender from the apt repository.