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>

Light colors

Unlike most other functions relating to color in LSL, lights operate in a slightly different color space and thus do not accept a regular RGB value. (Or, they will, however the displayed color will not be the expected color).

Fortunately, this is easily resolved with 2 functions:

• llsRGB2Linear - Convert regular LSL color into linear color. (for use in lights)
• llLinear2sRGB - Convert linear color to regular LSL color.

Equivalent color vectors to the default color picker palette. These are defined in the viewer program directory's skins/default/colors.xml while custom user-saved palette entries will be in user_settings/colors.xml.

<syntaxhighlight lang="lsl2">vector black = <0, 0, 0>; //ColorPaletteEntry01, "Black" vector white_A = <1, 1, 1>; //ColorPaletteEntry17, "White" vector gray = <0.5, 0.5, 0.5>; //ColorPaletteEntry02, "Gray" vector light_gray = <0.75, 0.75, 0.75>; //ColorPaletteEntry18, "LtGray" vector dark_red = <0.5, 0, 0>; //ColorPaletteEntry03 vector red = <1, 0, 0>; //ColorPaletteEntry19, "Red" vector dark_yellow = <0.5, 0.5, 0>; //ColorPaletteEntry04 vector yellow = <1, 1, 0>; //ColorPaletteEntry20, "Yellow" vector dark_green = <0, 0.5, 0>; //ColorPaletteEntry05 vector green = <0, 1, 0>; //ColorPaletteEntry21, "Green" vector dark_cyan = <0, 0.5, 0.5>; //ColorPaletteEntry06 vector cyan = <0, 1, 1>; //ColorPaletteEntry22 vector dark_blue = <0, 0, 0.5>; //ColorPaletteEntry07 vector blue = <0, 0, 1>; //ColorPaletteEntry23, "Blue" vector dark_magenta = <0.5, 0, 0.5>; //ColorPaletteEntry08 vector magenta = <1, 0, 1>; //ColorPaletteEntry24, "Purple" vector dirty_yellow = <0.5, 0.5, 0>; //ColorPaletteEntry09 vector light_yellow = <1, 1, 0.5>; //ColorPaletteEntry25 vector dark_green_to_blue = <0, 0.25, 0.25>; //ColorPaletteEntry10 vector green_to_blue = <0, 1, 0.5>; //ColorPaletteEntry26 vector light_green_to_blue = <0, 0.5, 1>; //ColorPaletteEntry11 vector light_blue_to_green = <0.5, 1, 1>; //ColorPaletteEntry27 vector dark_blue_to_cyan = <0, 0.25, 0.5>; //ColorPaletteEntry12 vector cyan_to_pink = <0.5, 0.5, 1>; //ColorPaletteEntry28 vector indigo = <0.5, 0, 1>; //ColorPaletteEntry13 vector violet = <1, 1, 0.5>; //ColorPaletteEntry29 vector dark_brown = <0.5, 0.25, 0>; //ColorPaletteEntry14 vector brown = <1, 0.5, 0>; //ColorPaletteEntry30 vector white_B = <1, 1, 1>; //ColorPaletteEntry15, "White" vector white_C = <1, 1, 1>; //ColorPaletteEntry31 vector pale_yellow = <1, 1, 0.79>; //ColorPaletteEntry16, "LtYellow" vector white_D = <1, 1, 1>; //ColorPaletteEntry32, "White"

// Floating point conversions, ambient inworld light and color profile variances // can show up as small differences in stored settings and externally picked samples</syntaxhighlight>

Useful functions for storing/retrieving color and alpha values to/from integers <syntaxhighlight lang="lsl2">integer ColorAlphatoRGBA(vector color, float alpha) {

   return (((integer)(alpha   * 255.0) & 0xFF) << 24)