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) { | integer ColorAlphatoRGBA(vector color, float alpha) { | ||
return (((integer)(alpha * 255.0) & 0xFF) << 24) | | return (((integer)(alpha * 255.0) & 0xFF) << 24) | | ||
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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> | ||
}}{{#vardefine:examples| | }}{{#vardefine:examples| | ||
< | <lsl> | ||
vector white = <1.0, 1.0, 1.0>; | vector white = <1.0, 1.0, 1.0>; | ||
vector grey = <0.5, 0.5, 0.5>; | vector grey = <0.5, 0.5, 0.5>; | ||
| Line 39: | Line 39: | ||
</ | </lsl> | ||
}}{{LSL Generic}}{{LSLC|Face|Color}} | }}{{LSL Generic}}{{LSLC|Face|Color}} | ||
{{LSLC|}} | {{LSLC|}} | ||
Revision as of 17:47, 31 December 2007
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Color in LSL
Color in LSLLSL 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
<lsl> 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>;
</lsl>
Useful Snippets
Useful functions for storing/retrieving color and alpha values to/from integers
<lsl> integer ColorAlphatoRGBA(vector color, float alpha) { return (((integer)(alpha * 255.0) & 0xFF) << 24)
Pages in category "LSL Color"
The following 27 pages are in this category, out of 27 total.