Easing / Easing Functions
Was ist Easing / Easing Functions?
Easing functions control how fast or slow an animation speeds up and slows down, making motion feel natural and physically believable rather than robotic and mechanical.
Auf einen Blick
- Auch bekannt als
- Interpolation curvesTweening curvesMotion curvesAnimation curves
- Verwendet für
- Making animated movement feel natural and physically groundedControlling acceleration and deceleration in UI and motion graphicsDefining the feel of character and camera movement in animationDistinguishing professional-quality animation from mechanical linear motion
- Gängige Tools
- Animation software curve editorsCSS animation timing functionsGame engine animation systemsMotion graphics timeline tools
- Verwandte Begriffe
- AnimationKeyframeMotion blurFrame rateIn-betweening
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Im Vergleich
Linear interpolation changes an animated value at a constant rate from start to end, producing movement that feels mechanical and robotic because it lacks the acceleration and deceleration present in virtually all real-world physical motion. Easing applies a curve to the rate of change, reflecting the non-linear speed profiles of objects under real physical forces. The perceptual difference between a linearly animated camera move and the same move with ease in-out applied is immediately noticeable even to viewers who cannot articulate why one feels natural and the other does not.
Stellen Sie es sich vor wie…
Imagine a toy car sitting still on the floor. If you push it perfectly evenly with the exact same force the whole time, it moves at a completely steady speed that feels strange and robotic, like a machine. But if you give it a gentle push that gets stronger at first and then lets it coast to a smooth stop at the end, it moves the way real cars move: building up speed, then slowing down as it arrives. That difference between the steady robotic movement and the naturally accelerating and decelerating movement is exactly what easing does in animation. It gives animated objects the same starting and stopping behavior that real objects have in the real world, so they feel like they belong to a world with gravity and physics rather than floating around in a computer. Audiences process this intuitively, feeling well-eased animation as alive and poorly eased animation as artificial, even without knowing anything about the technical principles involved.
Profi-Tipp
When evaluating AI-generated animation or specifying motion quality in generation prompts, think in terms of how the motion should start and stop rather than only what it should show. A camera move described as beginning slowly and accelerating smoothly before gently decelerating to rest implicitly communicates ease in-out behavior that models can interpret and apply. This approach also works when reviewing generated motion for quality: footage where movements begin and end abruptly at constant speed typically indicates missing easing that could be addressed in post-production through re-timing or speed curve adjustment.
Arten und Varianten
- Ease in begins slowly and accelerates toward the end, useful for objects starting from rest.
- Ease out begins fast and decelerates to a stop, useful for objects arriving at a destination.
- Ease in-out combines both, accelerating at the start and decelerating at the end, the most natural-feeling general option.
- Linear easing changes at a constant rate, appropriate only for contexts where mechanical precision is intentional.
- Bounce easing overshoots the endpoint and oscillates before settling, mimicking elastic or springy physical behavior.
- Elastic easing stretches significantly past the target before snapping back, used for cartoonish or stylized motion.
- Stepped easing moves in discrete quantized jumps, used for retro, 8-bit-influenced, or deliberately mechanical aesthetics.
Bereit, Ihre erste Szene in Morphic zu erstellen?
Morphic ausprobierenTypische Anwendungsfälle
- Designing UI element transitions in apps, websites, and interactive media where the easing of buttons, panels, and menus appearing or disappearing defines the feel of the interface.
- Animating motion graphics and title sequences where the acceleration and deceleration of moving elements is a primary expressive tool.
- Defining camera movement quality in cinematic animation, where ease in-out curves give dolly and pan movements the deceleration that distinguishes smooth professional camerawork from mechanical linear motion.
- Character animation in games and film where natural movement requires easing curves that reflect the physical laws governing how bodies accelerate and stop.
- Communicating animation quality requirements to AI tools through descriptive language that implies the intended easing behavior.
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