Production > Scene Planning > Animation Paths > Modifying a Path in the Camera, Top and Side Views

Modifying a Path in the Camera, Top and Side Views

Camera moves and motion paths can become quite advanced, especially with moves through 3D space. Harmony provides tools to view your camera’s path and make adjustments to it from both a 2D and 3D perspective.

You can display the trajectory of a motion path when you select an object in the Timeline or Camera view.

If you want to see the trajectory, enable the Show Control Points on Selected Layers option in the Preferences dialog box.

A motion path is easy to manipulate. One important concept to understand is that a trajectory contains both keyframes and control points. Both can be used to shape a path; each have their own significance and behaviour, however only keyframes appear in the Timeline view.

Keyframe: Has a transformation value and a position in space at a given frame. Keyframes are locked in time.
Control Point: Has a position but no fixed frame or timing. It is mainly used to deform a trajectory. There are no velocity handles available on a control point. The velocity segments are set between keyframes only, making curves and trajectories much smoother. Control points can only be added on a 3D path.

You can edit keyframes and control point parameters, such as the position, continuity, bias, tension and lock-in-time using the Coordinates and Control Point view.

Each time a keyframe or control point is selected in the Camera, Timeline or Xsheet view, its parameters appear in the Coordinates and Control Point view. You can also see the same information in the Coordinate and Control Point toolbars.

You can adjust these parameters by selecting the control points and keyframes in the Camera, Top and Side views with the Transform tool.

Continuity controls the smoothness of a transition between the segments joined by a point.

Tension controls how sharply the path bends as it passes through a control point or keyframe.

Bias controls the slope of the path so that it flows towards one side of the motion point or the other.

If you find that you are using the same Continuity, Tension and Bias settings, you can set a preference to remember your settings.

When you select a control point on a path, you can switch between a rounded or square corner by using the Linear/Curve command.