Graphics Programs Reference
In-Depth Information
3.
Let's create another Inverse Kinematics constraint, this ime for the leg2.R bone,
using these seings:
Ta rget : c h a r _ s ke l
Bone: footIK.R
Chain Length: 2
This ime we simply repeated the same procedure, but using the right seings for
the right leg of our armature.
The inal task that we must perform to get the armature setup done is recalculaing
the roll of the bones.
4.
Let's switch to Edit Mode , select all the bones (press the A key, once or twice),
then go to Armature → Bone Roll → Recalculate with Z-Axis Up . This operaion
causes the internal rotaion of the bones to be set in such a way that we can
animate it later and make use of a very useful mirroring tool. Let's save the file
before coninuing.
For the sake of analyzing the effect of the setup steps that we just performed, let's take
a couple of minutes to play with the armature in Pose Mode . Select a bone, move it
around, rotate it, and see how it affects other bones in the armature; do this for all bones
in the armature so that you can see how the enire skeleton works. When done with this
exploraion task, let's select all the bones (the A key) and make sure to perform a clearing
of all transformaions ( Pose → Clear Transform → Clear Location , then Clear Rotation ,
then Clear Scale ).
Objective Complete - Mini Debriefing
This task was a very straighforward one, as we are creaing a very basic armature setup,
the procedure was quite short. First, we set up the parening relaionship between various
bones in the armature, which is the basic tool that we can use for adding some funcionality
to the armature. Then we worked on using a constraint for two bones in our armature, the
constraint we used is a widely used one, called Inverse Kinematics . With these two simple
tasks, our armature ofers enough funcionality for us to work out the walk cycle that we
intend to create.
Classified Intel
Even though the task was quite easy to perform and very short too, it doesn't mean that
the setup of an armature is a trivial task. Let's discuss the general ideas behind this task
in more depth.
 
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