Control motion history dependence effects for normal constraints

In certain situations, a constrained object can become motion history dependent. For more information, see Motion history dependence effects.

You can control motion history dependence by making sure that the aim vector and the up vector do not point in the same direction. If they are pointing in the same direction, the best way to prevent motion history dependence is to change the up vector’s direction. You could also change the aim vector, but it’s likely that you choose the aim vector so that the object aims in a particular way.

Additionally, if the normal constraint’s World Up Type is set to None, the constrained object can be motion history dependent.

To change the up vector or aim vector direction for normal constraints with the Attribute Editor

1. Check the Aim Vector and Up Vector attributes as described in Edit normal constraints. If they are the same, edit one of the them so that they do not both point in the same direction.

To change the normal constraint World Up Type attribute with the Attribute Editor

1. Check the World Up Type attribute as described in Edit normal constraints. If set to None, the constrained object can be motion history dependent.