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How to apply LUT correctly in linear workspcace?

Community Beginner ,
Feb 11, 2020 Feb 11, 2020

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I'm trying to match the workflow between nuke and After Effects .So both are in now linear workspace, everything is just fine but, applying LUT does not seem to work correctly in AE. In nuke user can set "in" and "out" colorspace,so output image after aplying LUT looks correct.But in AE that doesn't seem possible. 

How can we apply LUT correctly in linear colorspace.

Thank you

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correct answers 1 Correct answer

Community Beginner , Feb 11, 2020 Feb 11, 2020
Thanks for the response.Actually i have to work in linear color space.Applying LUT in non-linear workspacelooks fine but not in linear workspace(either using "Lumetric color" or "Apply LUT" effect).What i want to do simply is ,output image after applying LUT effect  in linear workspcae to look same as in non linear workspace. 

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Adobe Community Professional ,
Feb 11, 2020 Feb 11, 2020

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You check File > Project Settings. You also control LUT by Lumetri Color Input LUT.

 

Screen Shot 2020-02-12 at 14.37.29.png

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Community Beginner ,
Feb 11, 2020 Feb 11, 2020

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Thanks for the response.

Actually i have to work in linear color space.Applying LUT in non-linear workspacelooks fine but not in linear workspace(either using "Lumetric color" or "Apply LUT" effect).

What i want to do simply is ,output image after applying LUT effect  in linear workspcae to look same as in non linear workspace. 

aeProjctSetting.jpg

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Community Beginner ,
Feb 12, 2020 Feb 12, 2020

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I think i have got my solution.

Thanks 

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Explorer ,
Jul 22, 2020 Jul 22, 2020

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What is your solution? having the same problem ... i am wondering why this issue doesn't pop up more often.

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Explorer ,
Jun 11, 2021 Jun 11, 2021

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can you share your solution please?

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Engaged ,
Jun 11, 2021 Jun 11, 2021

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A LUT itself is not linear or non-linear, it's just a transformation. But a LUT is made with input and output color spaces in mind, so you'll have to get your pixels into that space manually.

 

For example, a .cube file is usually not intended to be applied in linear space. If your .cube was intended for log space, you have to convert from linear to log before applying the LUT, perhaps using the Cineon Converter, Color Profile Converter, OpenColorIO plug-in, or some other method.

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