Speed Graph in After Effects
Master Custom Animation Timing in After Effects
The Speed Graph controls acceleration and deceleration without changing property values or animation duration. It provides more refined control than standard easing options.
Core Animation Concepts
Speed vs Value
Speed Graph manipulates the rate of change, not the actual property values like position or rotation. Think of it as controlling how fast your object moves through its path.
Custom Easing Benefits
Provides sophisticated motion control beyond basic ease in/out options. Essential for professional-quality animations that feel natural and engaging.
Bezier Handle Control
Yellow handles allow precise curve manipulation. Steep curves create sharp speed changes, while gradual hills produce smooth acceleration patterns.
Triangle Animation Setup Process
Select and Position
Shift-click all triangle layers and press P for Position. Set initial keyframe at origin with stopwatch.
Create Movement
Move playhead to 1 second mark. Drag triangles upward to top of rectangles while holding Shift for straight motion paths.
Apply Basic Easing
Use Keyframe Assistant to apply Easy Ease, Ease Out, and Ease In to different triangle sets for comparison.
Access Graph Editor
Select custom ease keyframes and click Graph Editor icon. Choose Edit Speed Graph from graph type options.
Easing Types Comparison
| Feature | Easing Type | Effect | Use Case |
|---|---|---|---|
| No Ease | Linear motion | Basic movement | |
| Easy Ease | Smooth in/out | Natural motion | |
| Ease Out | Smooth exit | Stopping motion | |
| Ease In | Smooth start | Starting motion | |
| Custom Speed Graph | Full control | Professional polish |
Look for the white line in Speed Graph mode. If you see red and green lines, you're in Value Graph mode. The left axis represents speed, while the bottom axis shows time in frames.
Speed Graph Curve Presets
Hold Keyframes
No interpolation between keyframes. Creates instant position changes without smooth transitions between points.
Linear Motion
Consistent speed throughout animation. Creates mechanical, uniform movement without acceleration or deceleration variations.
Auto Bezier
Automatic smooth curves with yellow handles. Provides foundation for custom curve manipulation and refined motion control.
Custom Curve Creation Checklist
Generates yellow handles for curve manipulation
Activates bezier controls for precise curve shaping
Steep curves create sharp changes, gradual hills create smooth motion
Preview speed changes and adjust handles as needed
Iterate handle positions until achieving target acceleration pattern
Steep curves compress values together creating acceleration, while gradual curves spread values apart for deceleration. This fundamental relationship controls your animation's feel.
Speed Graph vs Standard Easing
The speed graph won't change the value of whatever properties you're editing, and it won't change how long the animation is either. But what it does do is add custom easing so you can control your object's acceleration and deceleration.
Key Takeaways