Function OKLabGradient

palettes.go:161–170

OKLabGradient creates a gradient from (t,L,a,b) values with t∈[0,1] the position, L∈[0,1] the lightness, a∈[-1,1], and b∈[-1,1].

(points [][4]float64)

// OKLabGradient creates a gradient from (t,L,a,b) values with t∈[0,1] the position, L∈[0,1] the lightness, a∈[-1,1], and b∈[-1,1].
func OKLabGradient(points [][4]float64) ColorFunc {
	genSRGBLUTs()
	if len(points) == 0 {
		return func(y float64) color.RGBA { return color.RGBA{} }
	}
	return func(y float64) color.RGBA {
		p := interpolateGradient(y, points)
		return oklab2rgb(p[1], p[2], p[3])
	}
}