Function RGBtoHSV

RGBtoHSV(
    colRGB: number | vec4,
    green?: number,
    blue?: number,
    alpha?: number,
): vec4
Converts an RGB color to HSV. Accepts either a vec4 (r, g, b, a) or a number for red with green, blue, alpha provided. Returns hue in degrees [0, 360), saturation and value in [0, 1], and preserves alpha. Round-trips with HSVtoRGB: HSVtoRGB(RGBtoHSV(rgb)) ≈ rgb.
Parameters
- colRGB: number | vec4
  vec4 (r,g,b,a) or number for red
- Optionalgreen: number
  green component (0 to 1) when colRGB is a number
- Optionalblue: number
  blue component (0 to 1) when colRGB is a number
- Optionalalpha: number
  alpha component (0 to 1) when colRGB is a number
Returns vec4
vec4(h, s, v, a) with hue in degrees