Timeline Reference

Animation system for controlling track properties over time or distance.

Timeline Overview Timeline interface showing properties, keyframes, and curve editing

Interface Elements

When a node with controllable properties is selected, the Timeline displays:

  1. Properties - List of controllable properties
  2. Add Property Button - Add an optional override property
  3. Toggle Curve View Button - Switch between dope sheet and curve editor
  4. Ruler - Time (s) or distance (m), depending on the node’s duration type (Time or Distance)
  5. Playhead - Current position indicator, also shown as a transparent cart in the Game View
  6. Dope Sheet/Curve View - Keyframe editing area

Timeline Controls

Input Action Notes
Ruler Seek Drag on ruler to set playhead time
Middle Mouse Drag Pan Pan timeline view
Mouse Wheel Zoom Zoom in/out on timeline

Property Controls

Input Action Notes
Left Click Select Select property track
Shift + Click Multi-Select Add property to selection
Set Keyframe Button Set Keyframe Add or update keyframe at playhead time
Jump to Next/Previous Keyframe Jump to Keyframe Jump playhead to next/previous keyframe

View Controls

Input Action Notes
Toggle Curve View Button Switch View Mode Toggle between dope sheet and curves
Right-click Toggle Curve View Curve Visualization Enable/disable read-only curve display

Keyframe Editing

Input Action Notes
I Insert Add keyframe at playhead
Left Click Select Select keyframe
Double Click Edit Edit keyframe value
Shift + Click Multi-Select Add to selection
Drag Move Reposition keyframe
Delete Remove Delete selected keyframes
Ctrl+C/V Copy/Paste Duplicate keyframes
Box Select Multi-Select Drag to select multiple
Right Click Context Menu Optimize, change interpolation type, etc.

Animation Properties

Interpolation Types

Type Description Visual
Constant Step changes Flat line segments
Linear Straight transitions Straight line slopes
Bezier Smooth curves Curved transitions
Auto Bezier (Default) Smooth curves Curved transitions with mirrored Bézier handles

Property Types

Node Properties (Node-dependent)

Property Description Node Types Units
Roll Speed Banking rate Force, Geometric, Curved, Bridge rad/sec
Normal Force Vertical G-force Force G
Lateral Force Horizontal G-force Force G
Pitch Speed Up/down rotation rate Geometric rad/sec
Yaw Speed Left/right turn rate Geometric rad/sec

Override Properties (All nodes)

These optional properties have no effect unless added. For example, adding the Fixed Velocity property overrides the cart’s velocity, even with no keyframes. Otherwise, velocity is physically simulated.

Property Description Units
Fixed Velocity Override speed m/s
Heart Heartline offset m
Friction Surface friction -
Resistance Air resistance μm⁻¹

Note: Property values automatically carry forward between connected sections. For example, pitch curvature created in a Force Section will carry over to the default pitch speed of a following Geometric Section. To reset a property to its inherited value, right-click the keyframe and select Reset.

← Back to Documentation