Im using a lattice to deform a tire, which works perfectly for planar movement.
However, when moving vertically (from vehicle tilting when turning/accelerating) I want the tire to deform only on ground contact, not above it and not so it clips the surface plane.
I have been playing with the lattice deform strength setting - but it does not give me exactly what I want.
Maybe this image explains the issue some. I would like the plane to be a defined border for the tire mesh.