Motion, Tweening, and Easing.¶
Penner, R. (2002). Motion, Tweening, and Easing. Robert Penner's Programming Macromedia Flash MX.
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1 citation across 1 artifact.
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Primes¶
- Continuity
- In user-experience and product design, smooth animations and easing functions (cubic-Bezier, exponential easing) operationalize perceived continuity, with the canonical library of easing equations due to Penner (2002)
This sourceCanonical library of easing equations — linear, quadratic, cubic, quartic, quintic, sinusoidal, exponential, and circular ease-in/ease-out/ease-in-out — that operationalize perceived continuity in animation and UI design; widely adopted across JavaScript, ActionScript, CSS, and game-engine animation libraries.
- In user-experience and product design, smooth animations and easing functions (cubic-Bezier, exponential easing) operationalize perceived continuity, with the canonical library of easing equations due to Penner (2002)
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