quinticOut: Fifth-Power Deceleration

Maximum polynomial deceleration creating extraordinarily gentle completion

The quinticOut function produces the most extreme polynomial deceleration through inverted fifth-power scaling. This creates the most dramatic transition from rapid motion to extraordinarily gentle completion.

$f(t) = 1 - (t-1)^5$

The inverted quintic relationship maximizes the deceleration effect beyond all lower-order polynomial curves, creating the longest possible gentle landing phase.

ライブエディター

const fragment = () => {
  const w = 0.01
  const t = iTime.fract()
  const y = quinticOut(t)
  const Y = quinticOut(uv.x)
  const a = vec3(0.9, 0.6, 0.1)
  const b = vec3(0.1, 0.4, 0.9)
  const c = a.mix(b, y).mul(uv.x.step(t))
  const lines = mmin2(smoothstep(0, w, uv.mod(0.1).min(uv.sub(vec2(t, y)).abs())))
  const curve = stroke(uv.y.sub(Y), 0, w).mul(c)
  const color = lines.oneMinus().mul(0.2).add(curve)
  return vec4(color, 1)
}