Production > Scene Planning > Animation Paths > Modifying a Path in the Function View

Modifying a Path in the Function View

If you are accustomed to using graphs and function curves, you can use the Function view to define trajectories.

The graph in the Function view displays the motion over the first and last keyframes set in the scene, as well as any keyframes created between. If the scene is 60 frames, but the character's motion ends at frame 40, then the editor will only display up to frame 40.

The Function view lets you edit function curves and parameters. It is a visual graph for adding, removing, and editing keyframes, as well as adjusting the velocity. The Function view allows you to display multiple functions in the background as a reference.

Function View

Parameter Description

Function List

Function View Function List Section

When selecting a layer in the Timeline view, all the corresponding functions are displayed. Select all the functions you want to see and edit; hide the ones you don't.
Display Toolbar The Display toolbar allows you to modify how the editing area is displayed. You can hide the grid, disable the synchronization with the current frame, reset the zoom level and normalize the function display by stacking them one over the other to compare them regardless of their value range.
Current Frame Displays the current scene frame.
Selected Keyframe Value Displays the value of the selected keyframe.
Display Advanced Parameter Values

Function View Advanced Parameters

Displays the Projection, Bias, Tension and Continuity parameters to adjust the curve around the selected keyframe.

Keyframe, Velocity and Interpolation Options This toolbar lets you add and delete keyframes, adjust the velocity curve, adjust the segments to motion or stop-motion keyframes and set the velocity to create steps instead of a constant progression.
Function Types This toolbar lets you click on the different function types to enable or disable all the listed functions of that type.
Value Scale Displays the value range for the displayed editing area. It can be referenced to know the value of a keyframe.
Selected Keyframe The selected keyframe is displayed in red. When selected, the keyframe values are displayed in the corresponding fields.
Bezier Handles The Bezier handles let you adjust the ease in and ease out of each keyframe. The more the handle is pulled out horizontally, the slower the animation will be. The more the handle is pulled out vertically, the faster the animation will be.
Function Curve The thin line going from keyframe to keyframe is the actual curve. The section of a curve located between two keyframes is called a segment.
Frame Scale The Frame Scale displays the frame range for the displayed editing area. It can be referenced to know the current frame of a keyframe.