Difference between revisions of "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) / 255.0, ((rgba >> 8) & 0xFF) / 255.0, (rgba & 0xFF) / 255.0 >;
}

float RGBAtoAlpha(integer rgba) {
	return ((rgba >> 24) & 0xFF) / 255.0;
}