Module easing 

Easing helpers for deterministic motion.

Fret’s UI motion is driven by a monotonic tick/frame clock (ADR 0034). shadcn/ui and Radix often express easing in CSS (e.g. ease-[cubic-bezier(0.22,1,0.36,1)]). This module provides small, reusable easing math so motion policies can match those outcomes without DOM/CSS.

Structs

CubicBezier

A CSS-style cubic-bezier easing curve.

Constants

EASE

EASE_IN

EASE_IN_OUT

EASE_OUT

SHADCN_EASE

shadcn/ui v4 commonly uses ease-[cubic-bezier(0.22,1,0.36,1)] for overlay-like transitions.

Functions

linear

smoothstep