trajectory is a line that shows the path traveled by a selected object across a selected interval

To make a trajectory visible, select an object in the Viewport and an interval on the Timeline.

Trajectory Rendering Modes

Tools for switching Trajectory rendering modes can be found on the Toolbar:

1. Parent trajectories

If you select a group object, trajectory will be rendered only for the highest one in the object hierarchy.

2. All trajectories

If you want to show trajectories for every selected Point Controller or object, choose this option.

3. Edges trajectories

If this option is enabled, trajectories will show the positions of Edges connecting selected point controllers.

4. Edges and trajectories fixed

This mode shows positions on the selected point controllers and edges that connect them

Point controllers are shown as green points. In the current frame, they are marked with yellow circles

5. Using only key frames

In this mode, you will see trajectories of the selected point controllers in the keyframes.

Trajectory Edit Mode

When this mode is enabled, you can move, rotate and otherwise adjust any point of a trajectory by applying standard Manipulators.

To edit a trajectory:

1. Select a Point Controller (or several controllers)

2. Select an interval on the Timeline.
Changes you’ll be making are going to be applied to this interval

3. (optional) Turn on the Set trajectory interval switch.
This way, the trajectory won’t disappear when nyou deselect frames on the Timeline.

4. Enable Trajectory Edit Mode button on the Toolbar.

5. The point on the trajectory should look like this:

Darker green points on the trajectory represent keyframes.
Meanwhile brighter points represent interpolation (i.e. regular) frames.

6. Now you can select these points and apply manipulators to them:


Moving interpolation frames changes interpolation on the corresponding interval to Fixed.

Once you finish editing trajectories, you can disable the mode by turning off the Trajectory Edit Mode button.

Set Trajectory Interval

This button fixes the trajectories on the selectd interval.

When this mode is enabled, trajectories for the selected objects are always redered on the interval you've set, even if you select another interval.

To remove fixing, simply disable the button.


See Also

Rotation Trajectories

Key Frames


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