llsRGB2Linear

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/LSL

sRGBToLinear

llsRGB2Linear

Summary

Function: vector llsRGB2Linear( vector srgb );

	Forced Delay
	Energy

Returns a vector Transforms a color specified in the sRGB colorspace to the linear RGB colorspace.

• vector

srgb

–

Color in the sRGB color space.

Specification

Lights in Second Life are specified in LSL as linear red, green blue values in the range (0.0, 1.0). Internally light calculations are performed in the sRGB colorspace.

The sRGB (Standard Red Green Blue) colorspace is defined in IEC 61966-2-1:1999 and was developed as a joint project between Microsoft and HP.

This calculation is known as an Electro-Optical Transfer Function (EOTF).

Caveats

• The name of this function is actually a misnomer as LSL color is actually in Rec.709 space, not sRGB space. While they are very similar, the gamma value for sRGB is approx. 2.2, whereas the gamma value for Rec.709 is approx. 2.4.

Examples

See Also

Functions

•

llLinear2sRGB

To convert from sRGB to the Linear colorspace. (Inverse EOTF)

Deep Notes

Signature
function vector llsRGB2Linear( vector srgb );