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16 Messages

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1.3K Points

Sat, Jun 21, 2014 4:51 AM

Implemented

111

Lightroom: Ability to use 3D LUTs

I'd love to get the ability to use 3D LUTs in Lightroom, now that those can be created in Photoshop cc 2014.

Responses

Champion

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5.4K Messages

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95.8K Points

3 years ago

Alberto wrote, "Even if LR processes the images as 16 bit ProPhoto RGB, LUT can be applied."

If LR added a feature allowing LUTs to be applied, there's a color-space limitation that may reduce the usefulness of this feature.

Most LUTs people are interested in applying come from video color grading, and they typically operate on a different color space, most commonly Rec 709. To apply a LUT faithfully, preserving the exact color-to-color transformations, LR would need to implicitly convert a photo from LR's internal working space to Rec 709, apply the LUT, then convert back to the working space.   The gamut of LR's working space is the same as ProPhoto RGB, which is significantly wider than that of Rec 709 (same as sRGB). So applying common video LUTs would necessarily narrow the gamut of many photos, especially raw photos.

This probably isn't an issue for people who want to use LR to process video stills or photos taken of the video scene to preview color grading of their video, since the video will be delivered in Rec 709.   But it could be a noticeable limitation on those who want to apply video LUTs to their raw photos to get similar creative looks while preserving the wider gamut.

291 Messages

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6.4K Points

Hi John,
My usage would be limited, but I have been in the situation, and have noticed peers in the industry have the need to precisely match stills to video for marketing/previs needs, and it follows that the stills shooter should be following the lead of the DIT in terms of grading, not the other way around. Being able to start with he same LUT seems like the most logical workflow for this.
LUTs also provide a more intricate color-grading profile than Lightroom allows sometimes... this particularly bugs me. Giving a more complex grading structure in Lightroom would solve a lot of this. Split toning allows for very basic looks, where a mid-tone option, or a color gradient option (in brush form as well!) would significantly increase the creative control of stylized shots without the need for complex files in photoshop.
Many of us end up having to degrade the color space in some way for end use of the files anyway.
Does that help?

Champion

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5.4K Messages

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95.8K Points

Excellent, thanks.  I'm looking into whether to add "Apply LUT" to my Export LUT plugin.

1 Message

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60 Points

3 years ago

Me too

Champion

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5.4K Messages

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95.8K Points

Iulian, can you give more detail about the reasons how and why you'd like to apply LUTs within LR?  Such detail helps Adobe prioritize improvements.  Does the fact that applying most LUTs would reduce the color gamut of raw photos affect your desire to have the feature?

3 Messages

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112 Points

Any color effect or Lightroom preset will reduce the color gamut of a raw photo. The goal is not to have the same gamut when creating a final image. It's to have a nice image.

LUTs are not all that different in concept than Lightroom presets. They are just a standard that can be used to get the same results across multiple applications and there are many resources for where to get them because they can be made in many ways.

Champion

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5.4K Messages

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95.8K Points

"Any color effect or Lightroom preset will reduce the color gamut of a raw photo."

Many color adjustments you make in LR Develop  will not change the gamut.

1 Message

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60 Points

3 years ago

I would like to be able to import, create, export LUT's for and from LR.
I work on motorsports events, I have to work fast, to make and edit my pictures, I have to share my work with differents collegues  (agency, customers..etc..) , so I use mainly Lightroom. And we need to work with the same standards.
 
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3 Messages

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136 Points

3 years ago

Would be very useful and effective if LR classic could use LUT as graduated filter. Especially now that new range masks allow a very fine control.

2 Messages

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72 Points

3 years ago

How is this not already a thing? ADD THIS NOW! Being able to use the same presets in Photoshop, Premiere AND Lightroom would make creating your signature look easy!

Champion

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5.4K Messages

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95.8K Points

3 years ago

I've just released Apply LUT, a plugin that applies 3D LUTs to photos in Lightroom. If you try it, please let me know how well it works for you (or doesn't).

1 Message

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64 Points

3 years ago

I need any app for applying presets to images in Android.
Because rebuilding Lightroom app with my desired presets is crashing the app.

Champion

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5.4K Messages

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95.8K Points

3 years ago

LR 7.3 and ACR 10.3 just added "enhanced profiles", which include the ability to specify a LUT to be used in the profile.  This lets you apply LUTs in LR faster than using my Apply LUT plugin, without the need to create a TIFF for the result.

Unfortunately, there are two problems standing in the way:

1. You need to create the LUT profile in Photoshop / ACR, not LR.

2. ACR doesn't let you specify Rec 709 as the color space of the LUT. Rec 709 is the most common color space of LUTs used in video editing. When people say they "want to use LUTs", they're typically referring to all the widely used Rec 709 video-editing LUTs.

The former is an inconvenience, the latter is a roadblock. Please add your me-too vote to this feature request:
https://feedback.photoshop.com/photoshop_family/topics/camera-raw-add-rec-709-to-lut-color-spaces-in...

291 Messages

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6.4K Points

Should probably make a new topic for this and post it here?

Champion

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5.4K Messages

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95.8K Points

I think you missed the link at the end of my last post.

291 Messages

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6.4K Points

Haha, my bad! I read it in my email and missed the link! *me-too'd

Champion

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5.4K Messages

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95.8K Points

3 years ago

Unfortunately, it isn't possible for a LR plugin to make up for the missing ability to use Rec 709 LUTs, because Adobe hasn't documented the format of LUTs used in enhanced profiles.   Please add your vote to this feature request:
https://feedback.photoshop.com/photoshop_family/topics/camera-raw-and-lightroom-document-the-format-...

163 Messages

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2.7K Points

Yes they have, it's in the SDK Documentation. There's more info in the SDK as well as a sample LUT. It's an Iridas/Adobe Format Cube LUT with no blank lines in the header.


Champion

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5.4K Messages

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95.8K Points

"Yes they have, it's in the SDK Documentation."

Adobe has documented the format of .cubes loaded into the New Profile window of Camera Raw, but they haven't documented the format of the LUT as it is actually stored in the .xmp file containing the enhanced profile.  It is this latter format that's needed for plugins to be able to construct LUT-containing enhanced profiles from LUTs in color spaces like Rec 709 that Adobe has chosen not to provide.   See the discussion in the other topic for more details:
https://feedback.photoshop.com/photoshop_family/topics/camera-raw-and-lightroom-document-the-format-...

7 Messages

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202 Points

3 years ago

would love to see 3dlut cube files used with light room! please make it happen

Champion

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5.4K Messages

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95.8K Points

It's now possible, if somehwat inconvenient, using the new enhanced profiles of LR and ACR.  See this previous reply: 
https://feedback.photoshop.com/photoshop_family/topics/id_love_to_get_the_ability_to_use_3d_luts_in_... 

However, until Adobe fixes the omission of the Rec 709 color space, you might still have to use the Apply LUT plugin to use the most popular video color-grading LUTs.

3 Messages

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92 Points

2 years ago

This reply was created from a merged topic originally titled Lightroom Classic CC LUT support.

With extensive LUT support in alternative RAW processors I wish Lightroom also had the ability to implement LUT color correction directly with a section of Develop module. The simpliest way as I see it is to have an option to select LUT .cube file and be able to change its overall effect on the image with a transparency or percentage slider. I can do that in Photoshop with Color Lookup adjustment layer; I'm also aware of creating a custom color profile based on a LUT with a percentage slider. The latter workaround is cumbersome and tricky.

Having a separate LUT section like Split Toning would immensely improve color correction within Lightroom. Furthermore, having the ability to load more LUTs as a stack with different effect would certainly make LR a killer app.

Champion

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5.4K Messages

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95.8K Points

It's now possible, if somehwat inconvenient, using the new enhanced profiles of LR and ACR.  See this previous reply: 
https://feedback.photoshop.com/photoshop_family/topics/id_love_to_get_the_ability_to_use_3d_luts_in_... 

However, until Adobe fixes the omission of the Rec 709 color space, you might still have to use the Apply LUT plugin to use the most popular video color-grading LUTs.