I have a little floating robot character, it's just a sphere with an eye and 4 little "nub" sort of feet legs that extend from it's bottom. I want to do keyframe animation on the sphere, and have the little legs swing and bounce around (within limits on their movement), while attached to the sphere.
I have some limit rotation constraints set up on them but I decided I want to just simulate them like a puppet's feet or something, instead of manually animating them. How can I achieve this? The sphere is not yet rigged and neither are the legs, will I need to rig them to do this? Or can I handle the little feet with physics and constraints alone?
I've tried rigid and soft body and setting their parent empty as a constraint target but the feet just fall down infinitely when I bake the simulation. I've never tried to do simulations so I'm not sure where I should be looking to do this. Also at the base of my little feet I have a small colored ring from which they extend, this is animated using a lattice so that when the feet move, this little "rubbery" part deforms a bit as well, and if possible I'd like to preserve that in any simulation, though it's not that important and I could do without it. I should note that I've done a simple character similar to this before but that was without needing any physics.