| half4 main(half4 hsl) { | |
| // HSL-to-RGB conversion algorithm lifted from sksl_shared $hsl_to_rgb. | |
| half C = (1 - abs(2 * hsl.z - 1)) * hsl.y; | |
| half3 p = hsl.xxx + half3(0, 2/3.0, 1/3.0); | |
| half3 q = saturate(abs(fract(p) * 6 - 3) - 1); | |
| return half4((q - 0.5) * C + hsl.z, 1); | |
| } |