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LUTs not saving info


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Affinity Photo v.2 have a bug where you can't create LUTs to be used for color correction in other softwares. I show here how it is not working but also that it works great in version 1 of Affinity Photo. This problem have been since December 2022 as I can see on the forum and still haven't been fixed.

 

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As far as I know (might be outdated) you can create LUTs by 2 methods:

  1. add several adjustments on top of a base image, then export LUT
  2. infer LUT by comparing the current opened image with another external file

i‘be never seen exporting a LUT directly from RAW edits.

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Special interest into procedural texture filter, edit alpha channel, RGB/16 and RGB/32 color formats, stacking, finding root causes for misbehaving files, finding creative solutions for unsolvable tasks, finding bugs in Apps.

 

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1 hour ago, RichardMH said:

Just did another test. It ignores everything I did in the Develop Persona.

The LUT is created from Adjustment Layers in the file.

https://affinity.help/photo2/en-US.lproj/pages/Adjustments/export_3dLut.html

The Develop Persona does not create Adjustment Layers, therefore actions done there cannot be captured and exported as a LUT.

-- Walt
Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases
PC:
    Desktop:  Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 

    Laptop:  Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
iPad:  iPad Pro M1, 12.9": iPadOS 17.3, Apple Pencil 2, Magic Keyboard 
Mac:  2023 M2 MacBook Air 15", 16GB memory, macOS Sonoma 14.3.1

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4 hours ago, walt.farrell said:

The LUT is created from Adjustment Layers in the file.

https://affinity.help/photo2/en-US.lproj/pages/Adjustments/export_3dLut.html

The Develop Persona does not create Adjustment Layers, therefore actions done there cannot be captured and exported as a LUT.

It's only one layer in v2, used to be different in v1 but there is no problem.

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13 minutes ago, Johansenfoto said:

It's only one layer in v2, used to be different in v1 but there is no problem.

The Develop Persona has never created layers, whether in V1 or V2.

-- Walt
Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases
PC:
    Desktop:  Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 

    Laptop:  Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
iPad:  iPad Pro M1, 12.9": iPadOS 17.3, Apple Pencil 2, Magic Keyboard 
Mac:  2023 M2 MacBook Air 15", 16GB memory, macOS Sonoma 14.3.1

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3 minutes ago, Johansenfoto said:

I just now understood what you ment. But where to do adjustment then for saving LUTs?

 

In the Photo Persona, using Adjustment Layers, after the image is Developed. Do not make adjustments in the Develop Persona if you want to create LUTs.

-- Walt
Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases
PC:
    Desktop:  Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 

    Laptop:  Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
iPad:  iPad Pro M1, 12.9": iPadOS 17.3, Apple Pencil 2, Magic Keyboard 
Mac:  2023 M2 MacBook Air 15", 16GB memory, macOS Sonoma 14.3.1

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5 minutes ago, walt.farrell said:

In the Photo Persona, using Adjustment Layers, after the image is Developed. Do not make adjustments in the Develop Persona if you want to create LUTs.

Ah now I got it to work, thank you so much for taking your time to answer.

Only wish it would be easier, but it work and that's the point.

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You're welcome.

-- Walt
Designer, Photo, and Publisher V1 and V2 at latest retail and beta releases
PC:
    Desktop:  Windows 11 Pro, version 23H2, 64GB memory, AMD Ryzen 9 5900 12-Core @ 3.00 GHz, NVIDIA GeForce RTX 3090 

    Laptop:  Windows 11 Pro, version 23H2, 32GB memory, Intel Core i7-10750H @ 2.60GHz, Intel UHD Graphics Comet Lake GT2 and NVIDIA GeForce RTX 3070 Laptop GPU.
iPad:  iPad Pro M1, 12.9": iPadOS 17.3, Apple Pencil 2, Magic Keyboard 
Mac:  2023 M2 MacBook Air 15", 16GB memory, macOS Sonoma 14.3.1

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