ソルバーが空間でどの程度進んでジョイントの限度を "見る" ことができるか決定します。
Distance inside the limit value at which the limit will be considered to be active by the solver.
For translational joints the unit is meters.
For rotational joints the unit is degrees.
Setting this low can cause jittering, but might run faster.
Setting this high can reduce jittering, but might run slower. Jointed objects will still fall asleep correctly.
0 = use defaults