Author Topic: Color Transformation from CIE Lab to RGB  (Read 281 times)

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Offline Fred B

Color Transformation from CIE Lab to RGB
« on: January 13, 2020, 12:47:08 pm »
Does anyone know what transformation matrix is used to convert the color selectors values from CIE Lab to RGB?

Is it based around (sRGB, Adobe RGB, etc), and what light source does it use (D65, D50, F7, etc.)?

Any help would be greatly appreciated.

Offline Søren

Re: Color Transformation from CIE Lab to RGB
« Reply #1 on: January 13, 2020, 01:53:51 pm »
Everything in KeyShot is sRGB (or actually gamma 2 with the sRGB whitepoint) and relative to illuminant D65 unless specified otherwise.

If you have a measured reflectance in CIELab I recommend having a look at the New Measured Paint entry under the Material Menu in the material graph.

Kind regards,
Søren
« Last Edit: January 13, 2020, 01:58:51 pm by Søren »

Offline Furniture_Guy

Re: Color Transformation from CIE Lab to RGB
« Reply #2 on: January 13, 2020, 05:02:37 pm »
Everything in KeyShot is sRGB (or actually gamma 2 with the sRGB whitepoint) and relative to illuminant D65 unless specified otherwise.

If you have a measured reflectance in CIELab I recommend having a look at the New Measured Paint entry under the Material Menu in the material graph.

Kind regards,
Søren

Whoa... Good to know.

THANKS!

Perry (Furniture_Guy)