That is the most important feature this would make me use this over the good old wooden puppet, which is small (10cm). I.e. it travels with me with my drawing utensils.
I guess I am asking: what exactly is the value proposition?
INVERSE kinematics derive joint angles from coordinates
it's useful when you have a chain of joints and a mug to grab with it
Imagine a character walking with forward kinematics. Every time you move the characters hips , you’d have to rotate the leg joints and make sure the foot doesn’t slide. Remember virtual characters don’t have friction.
IK lets you lock the foot in a spot so you can animate the body above it without having to spend time matching the foot position.
In a real world, this is like if you tried to put your hand on a door handle while jumping up and down. It’s easier to keep position when you hold the handle than if you were to just touch it.
You need a proper motion controller on top to actually have realistic walking motion driven by steps.