Ràng Buộc Giám Sát Chuyển Động (Follow Track Constraint)#

By default the Follow Track constraint is making objects have the same position at a frame as the track has. The motion of this object happens on a single plane defined by the camera and the original position of the object.

Các Tùy Chọn (Options)#

../../../_images/animation_constraints_motion-tracking_follow-track_panel.png — Follow Track Constraint panel.#

Đoạn Phim đang Hoạt Động (Active Clip): Receive tracking data from the scene's Active Clip. If unchecked, an option appears to choose from the other clips.
Vị Trí 3D (3D Position): Use the 3D position of the track to parent to.
Chưa Biến Dạng (Undistorted): Parent to the undistorted position of the 2D track.
Phương Pháp Khung Hình (Frame Method): Defines how the footage is fitted in the camera frame.
Máy Quay Phim (Camera): Select the camera to which the motion is parented to (if empty, the active scene camera is used).
Đối Tượng định Độ Sâu (Depth Object): If this object is set, constrained objects will be projected onto the surface of this depth object which can be used to create facial makeup visual effects.
Ràng Buộc thành Đường Cong-F (Constraint to F-Curve): Creates F-Curves for the object that copies the movement caused by the constraint.
Tác Động/Ảnh Hưởng (Influence): Controls the percentage of affect the constraint has on the object. See common constraint properties for more information.

Ví Dụ (Example)#

Video Ví Dụ về Theo Dõi Giám Sát (Follow Track Example Video)