Floor constraint with bumps?

Question

I am making an animation with a car and was wondering if there was a way to integrate bumps into the floor constraint, so that the wheels would automatically go over the bumps

Answer 1

Yes, you can do that, by creating a floor marker and using a shrinkwrap constraint to raise it up the level of any bumps:

The wheel's armature has a wheel parent, an axle, and a floor bone. Both the axle and the floor are parented to the wheel parent.

The floor bone is raised to the level of the mesh by a shrinkwrap constraint, as pictured. (Not lowered, but you can build that in with a second constraint if you want.) The axle has a floor constraint (with offset) targeting the floor bone. As the wheel parent moves over a bump, the floor bone raises to the level of the bump, which raises the floored axle bone.