Trajectory

Scooter following a trajectory

Whenever an object moves through world space, you can view its trajectory. A trajectory is the visible path the object makes because of its movement. You can think of a trajectory as a three-dimensional function curve for the Position track of an object.

Object trajectories appear with the following properties:

In 3D Studio R4, trajectories were referred to as "motion paths." In 3ds max, there is a Path constraint, which picks a spline in the scene to use as a motion path for an object.