Difference between revisions of "Category:LSL Color"

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{{#vardefine:helpers|
{{#vardefine:helpers|
'''Useful functions for storing/retrieving color and alpha values to/from integers'''
'''Useful functions for storing/retrieving color and alpha values to/from integers'''
<lsl>integer ColorAlphatoRGBA(vector color, float alpha) {
<syntaxhighlight lang="lsl2">integer ColorAlphatoRGBA(vector color, float alpha) {
     return (((integer)(alpha  * 255.0) & 0xFF) << 24) |
     return (((integer)(alpha  * 255.0) & 0xFF) << 24) |
           (((integer)(color.x * 255.0) & 0xFF) << 16) |
           (((integer)(color.x * 255.0) & 0xFF) << 16) |
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float RGBAtoAlpha(integer rgba) {
float RGBAtoAlpha(integer rgba) {
     return ((rgba >> 24) & 0xFF) / 255.0;
     return ((rgba >> 24) & 0xFF) / 255.0;
}</lsl>
}</syntaxhighlight>
}}
}}


{{#vardefine:examples|
{{#vardefine:examples|


{{{!}} class="sortable" {{Prettytable}}
{{{!}} class="sortable" {{Prettytable|style=float:right;}}
{{!}}- {{Hl2}}
{{!}}- {{Hl2}}
! Color
! Color
! Code
! Code
{{!}}-
{{!}}-{{ColorMath|hex=001f3f}}
{{!}} style="color: white; background: #001f3f" {{!}}NAVY
{{!}} style="color: white; background: #{{#var:hex}}" {{!}}NAVY
{{!}}<code><0.000, 0.122, 0.247></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=0074d9}}
{{!}} style="background: #0074d9" {{!}}BLUE
{{!}} style="background: #{{#var:hex}}" {{!}}BLUE
{{!}}<code><0.000, 0.455, 0.851></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=7fdbff}}
{{!}} style="background: #7fdbff" {{!}}AQUA
{{!}} style="background: #{{#var:hex}}" {{!}}AQUA
{{!}}<code><0.498, 0.859, 1.000></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=39cccc}}
{{!}} style="background: #39cccc" {{!}}TEAL
{{!}} style="background: #{{#var:hex}}" {{!}}TEAL
{{!}}<code><0.224, 0.800, 0.800></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=3d9970}}
{{!}} style="background: #3d9970" {{!}}OLIVE
{{!}} style="background: #{{#var:hex}}" {{!}}OLIVE
{{!}}<code><0.239, 0.600, 0.439></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=2ecc40}}
{{!}} style="background: #2ecc40" {{!}}GREEN
{{!}} style="background: #{{#var:hex}}" {{!}}GREEN
{{!}}<code><0.180, 0.800, 0.251></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=01ff70}}
{{!}} style="background: #01ff70" {{!}}LIME
{{!}} style="background: #{{#var:hex}}" {{!}}LIME
{{!}}<code><0.004, 1.000, 0.439></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=ffdc00}}
{{!}} style="background: #ffdc00" {{!}}YELLOW
{{!}} style="background: #{{#var:hex}}" {{!}}YELLOW
{{!}}<code><1.000, 0.863, 0.000></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=ff851b}}
{{!}} style="background: #ff851b" {{!}}ORANGE
{{!}} style="background: #{{#var:hex}}" {{!}}ORANGE
{{!}}<code><1.000, 0.522, 0.106></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=ff4136}}
{{!}} style="background: #ff4136" {{!}}RED
{{!}} style="background: #{{#var:hex}}" {{!}}RED
{{!}}<code><1.000, 0.255, 0.212></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=85144b}}
{{!}} style="color: white; background: #85144b" {{!}}MAROON
{{!}} style="color: white; background: #{{#var:hex}}" {{!}}MAROON
{{!}}<code><0.522, 0.078, 0.294></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=f012be}}
{{!}} style="background: #f012be" {{!}}FUCHSIA
{{!}} style="background: #{{#var:hex}}" {{!}}FUCHSIA
{{!}}<code><0.941, 0.071, 0.745></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=b10dc9}}
{{!}} style="color: white; background: #b10dc9" {{!}}PURPLE
{{!}} style="color: white; background: #{{#var:hex}}" {{!}}PURPLE
{{!}}<code><0.694, 0.051, 0.788></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=ffffff}}
{{!}} style="background: #ffffff" {{!}}WHITE
{{!}} style="background: #{{#var:hex}}" {{!}}WHITE
{{!}}<code><1.000, 1.000, 1.000></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=dddddd}}
{{!}} style="background: #dddddd" {{!}}SILVER
{{!}} style="background: #{{#var:hex}}" {{!}}SILVER
{{!}}<code><0.867, 0.867, 0.867></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=aaaaaa}}
{{!}} style="background: #aaaaaa" {{!}}GRAY
{{!}} style="background: #{{#var:hex}}" {{!}}GRAY
{{!}}<code><0.667, 0.667, 0.667></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}-
{{!}}-{{ColorMath|hex=000000}}
{{!}} style="color: white; background: #111111" {{!}}BLACK
{{!}} style="color: white; background: #{{#var:hex}}" {{!}}BLACK
{{!}}<code><0.067, 0.067, 0.067></code>
{{!}}<code>{{#var:vector}}</code>
{{!}}}
{{!}}}


[[File:V1.23 Color Picker.jpg|right|thumb|color picker]]
[[File:V1.23 Color Picker.jpg|right|thumb|color picker]]
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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.
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.


<lsl>vector black              = <0, 0, 0>;          //ColorPaletteEntry01, "Black"
<syntaxhighlight lang="lsl2">vector black              = <0, 0, 0>;          //ColorPaletteEntry01, "Black"
vector white_A            = <1, 1, 1>;          //ColorPaletteEntry17, "White"
vector white_A            = <1, 1, 1>;          //ColorPaletteEntry17, "White"
vector gray                = <0.5, 0.5, 0.5>;    //ColorPaletteEntry02, "Gray"
vector gray                = <0.5, 0.5, 0.5>;    //ColorPaletteEntry02, "Gray"
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vector red                = <1, 0, 0>;          //ColorPaletteEntry19, "Red"
vector red                = <1, 0, 0>;          //ColorPaletteEntry19, "Red"
vector dark_yellow        = <0.5, 0.5, 0>;      //ColorPaletteEntry04
vector dark_yellow        = <0.5, 0.5, 0>;      //ColorPaletteEntry04
vector yellow              = <1, 0, 0>;          //ColorPaletteEntry20, "Yellow"
vector yellow              = <1, 1, 0>;          //ColorPaletteEntry20, "Yellow"
vector dark_green          = <0, 0.5, 0>;        //ColorPaletteEntry05
vector dark_green          = <0, 0.5, 0>;        //ColorPaletteEntry05
vector green              = <0, 1, 0>;          //ColorPaletteEntry21, "Green"
vector green              = <0, 1, 0>;          //ColorPaletteEntry21, "Green"
Line 129: Line 127:


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




Revision as of 19:19, 21 January 2015

Color in LSL

Color in LSL

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>

• float x – Red value [0, 1]
• float y – Green value [0, 1]
• float z – Blue value [0, 1]

Examples

Color Code
NAVY <0.000, 0.122, 0.247>
BLUE <0.000, 0.455, 0.851>
AQUA <0.498, 0.859, 1.000>
TEAL <0.224, 0.800, 0.800>
OLIVE <0.239, 0.600, 0.439>
GREEN <0.180, 0.800, 0.251>
LIME <0.004, 1.000, 0.439>
YELLOW <1.000, 0.863, 0.000>
ORANGE <1.000, 0.522, 0.106>
RED <1.000, 0.255, 0.212>
MAROON <0.522, 0.078, 0.294>
FUCHSIA <0.941, 0.071, 0.745>
PURPLE <0.694, 0.051, 0.788>
WHITE <1.000, 1.000, 1.000>
SILVER <0.867, 0.867, 0.867>
GRAY <0.667, 0.667, 0.667>
BLACK <0.000, 0.000, 0.000>
color picker

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. 

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

Useful Snippets

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;
}

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