Enumeration of all supported easing functions for animation and movement interpolation. Each easing function expects a normalized time value t ∈ [0,1] and returns a smoothed progression value ∈ [0,1]. Use with EasingFunctions.From to obtain the corresponding easing function delegate.
| Enumerator |
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| Linear | Linear easing with constant velocity throughout the transition. No acceleration or deceleration is applied; the output equals the input. Formula: f(t) = t.
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| EaseInQuad | Quadratic ease-in curve that starts slowly and gradually accelerates. Creates a gentle acceleration effect suitable for subtle animations. Formula: f(t) = t²
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| EaseOutQuad | Quadratic ease-out curve that starts quickly and gradually decelerates. Creates a gentle deceleration effect as the animation approaches completion. Formula: f(t) = t(2 - t)
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| EaseInOutQuad | Quadratic ease-in/out curve with slow start and end, faster movement in the middle. Provides smooth acceleration and deceleration for balanced animations. Combines ease-in for the first half and ease-out for the second half.
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| EaseInCubic | Cubic ease-in curve that starts very slowly with strong acceleration toward the end. More pronounced than quadratic easing; ideal for dramatic entrances. Formula: f(t) = t³
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| EaseOutCubic | Cubic ease-out curve that starts quickly with strong deceleration toward the end. More pronounced than quadratic easing; ideal for dramatic stops. Formula: f(t) = (t-1)³ + 1.
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| EaseInOutCubic | Cubic ease-in/out curve with gentle start and finish, smooth transition through the center. Provides more pronounced easing than quadratic while maintaining smoothness. Well-suited for natural-feeling object movements.
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| EaseInQuart | Quartic ease-in curve with very slow start and steep acceleration. Creates a heavy, cinematic feel with dramatic acceleration buildup. Formula: f(t) = t⁴
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| EaseOutQuart | Quartic ease-out curve with fast start and steep deceleration. Creates a heavy, cinematic feel with dramatic deceleration to rest. Formula: f(t) = 1 - (t-1)⁴
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| EaseInOutQuart | Quartic ease-in/out curve with balanced acceleration and deceleration. Heavy easing at both ends creates a cinematic, weighty motion feel. Ideal for important UI transitions or camera movements.
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| EaseInQuint | Quintic ease-in curve with extremely slow start and powerful acceleration. The strongest ease-in; barely moves at the beginning before accelerating dramatically. Formula: f(t) = t⁵
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| EaseOutQuint | Quintic ease-out curve with very fast start and strong deceleration. The strongest ease-out; rockets forward then settles gradually to rest. Formula: f(t) = (t-1)⁵ + 1.
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| EaseInOutQuint | Quintic ease-in/out curve providing the smoothest easing with nearly flat velocity at the midpoint. Maximal easing at both ends creates extremely smooth, natural-feeling motion. Best for long, flowing animations requiring the most gradual transitions.
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| SmoothStep | Hermite smoothstep interpolation with smooth edges and continuous first derivative (C¹). Provides gentle ease-in and ease-out with zero velocity at endpoints. Formula: f(t) = 3t² - 2t³ Commonly used in procedural generation and shader programming.
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| SmootherStep | Ken Perlin's improved smootherstep interpolation with gentler transitions and continuous second derivative (C²). Even smoother than SmoothStep with flatter velocity curve at the center. Formula: f(t) = 6t⁵ - 15t⁴ + 10t³ Preferred for high-quality interpolation where smoothness is critical.
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1.14.0