This point may have been made already, but I am having a hard time sifting through the many posts that mention armatures, rigs, bones, extrusion so I am going to ask it maybe for another time.
I am working with the book Introducing Character Animation with Blender, Pages 144-?.
I am using blender 2.48a, if that matters.
Specifically on page 144 Tony Mullen instructs the reader to extrude a bone from the tip of the Spine.4 bone (the last bone in the chain of previously extruded bones that make up the spine) and rename it UpperBody.
UpperBody is then to be reparented to another bone called Torso, which is located around the pelvis.
What I notice is this:
A. UpperBody is still connected to the spine.
B. There is no dotted line showing a Parent/Child relationship between UpperBody and Torso, although the pic in the book shows one.
C. Since the Bones are not part of the same Armature set I am unable to select Torso in the child of drop down menu for UpperBody when it edit mode.
D. When I move Torso the whole spine and UpperBody moves, which makes it seem like the parenting stuck, but is this what I want, or are UpperBody and Toso supposed to be disconnected from the spine?
E. Later on that same page when I am asked to Extrude another bone from Spine.4 and name it Shoulders then reparent it to UpperBody the two bones become one big mess of overlapped structure. That does not seem right at all, but nothing I do seems to fix that.
I am concerned that I am not doing this right and that it will cause me problems down the line once I have spent hours building this rig.
So is extrusion and reparenting the way to go here, or should I make a new armature in object mode every time I want to add a new bone that is being used for control? (such as the Shoulders, UpperBody, Torso, etc…) and then should I make a correlating bone, such as Spine.4 the child of a control bone, such as UpperBody?
As I said I am a bit confused. This is a great book, but the in depth explanation about why things are being done seems to be lacking a bit. That I do not know what has changed from version 2.46 (i believe is the focus of this book, and 2.48a of even 2.49)
If anyone can help me to clear this up that would be great.