Category:LSL Color

LSL has its own special format for color. LSL uses a vector to store color. Unlike traditional RGB where each channel is 0 -> 255, LSL's color channels are 0 -> 1.

Format: <R, G, B>

vector white   = <1.0, 1.0, 1.0>;
vector grey    = <0.5, 0.5, 0.5>;
vector black   = <0.0, 0.0, 0.0>;
vector red     = <1.0, 0.0, 0.0>;
vector green   = <0.0, 1.0, 0.0>;
vector blue    = <0.0, 0.0, 1.0>;
vector yellow  = <1.0, 1.0, 0.0>;
vector cyan    = <0.0, 1.0, 1.0>;
vector magenta = <1.0, 0.0, 1.0>;

Useful functions for storing/retrieving color and alpha values to/from integers

integer ColorAlphatoRGBA(vector color, float alpha) {
    return (((integer)(alpha   * 255.0) & 0xFF) << 24) |
           (((integer)(color.x * 255.0) & 0xFF) << 16) |
           (((integer)(color.y * 255.0) & 0xFF) << 8) |
            ((integer)(color.z * 255.0) & 0xFF);
}
 
vector RGBAtoColor(integer rgba) {
    return < (rgba >> 16) & 0xFF, (rgba >> 8) & 0xFF, (rgba & 0xFF) > / 255.0;
}
 
float RGBAtoAlpha(integer rgba) {
    return ((rgba >> 24) & 0xFF) / 255.0;
}