“Kinematics is a branch of classical mechanics that describes the motion of points, bodies (objects), and systems of bodies (groups of objects) without considering the forces that cause them to move” - wikipedia
Forward kinematics is when you have a
controls (ctrls in a
eg: A|B|C|D in that when A is moved B C D follow, when B is moved C and D
follow and so down the `chain’.
Here are two examples of setting up an
FK chain. One using parenting to create
the hierarchy and the other using constraints.
I’m using cubes here to clearly show what is going on, but these can be
any type of
control Curve /
As you can see both of these examples will result in a
control rig that
will behave in a forward [kinematic]
*Side note: we can then attach
clusters etc to the results of
these controls to alter the base shape
deform the Cube.
Here is a look at that in action, the control curves driving
joints that are
skinned to the
Cube to change the shape of the cube (more on that later).
Another kinematic we use a lot is
Inverse Kinematics (IK).