I made a tool for applying 3D LUTs to the Windows desktop

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  • #145774

    mbze430
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    @mbze430 : This solution is excellent for a 4K60 workflow but for refresh rates above it isn’t that great. I bookmark it though, so thank you for this input ! 🙂

    Edit : https://www.displaycalibrations.com/lut_boxes_comparisons.html

    Most home theater enthusiast and even video production only cares up to 60hz.   Even with the workflow, you can frame convert from 120/240fps down to production fps than color grade.

    Only people that wants 120hz+ are gamers.  That is why the Lumagen Artisan 8k only does 120hz with a license key, because most poeple wouldn’t need it.

    To get 120hz “free”, DWMLUT would be the clear winner.

    #145775

    Vincent
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    By the way : https://www.displaycalibrations.com/lut_boxes_comparisons.html

    depending of display size and requirements (lag, contrast, etc) it’s cheaper to buy a Coloredge CS rather that rely on a bad display + $600 to $1000 and higher LUT3D, since these have very accurate grey out of the box so any ideal colrospace can be simulated with a 1dlut matrix inside them.

    But as I said it depends on display requirements for your task… if you need a 65″ display you may need one of those boxes if 11/21-point grayscale on Display CMS (typical modern TV) canot provide required accuracy.

    IDNK the displays owned by the posters in this thread. Also if some of them own a fast “gamer” display be it backlit or OLED, these boxes may have an unwanted lag.

    #145776

    Guillaume
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    I did not consider the lag into the equation. And SDI can’t go higher than 120 Hz. It would be very expensive too. As I have a 240 Hz monitor, I only can rely on DWM LUT. I’m worried about the 2026 big Windows 11 update.

    #145777

    DaniJ
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    I meant the LUT3D “layer” on PS, and its very limited usefulness since content colospace for PS could be whatever you want, like TIFFs in any colospace like sRGB, AdobeRGB, Prophoto and its variants (melissa prostar…), DisplayP3, eciRGBv2…

    Yeah, the layer LUT is mostly for artistic changes, not precise color.

    I was thinking about the complex LUTs inside the B2A* tags, which are independent of content color space.

    #145778

    yuyu
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    Looking at this, you can get a good understanding of what’s missing from ICC and the need for 3D LUT.
    https://lightillusion.com/what_is_wrong_with_iccs.html
    For your reference.

    #145779

    Vincent
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    Looking at this, you can get a good understanding of what’s missing from ICC and the need for 3D LUT.
    https://lightillusion.com/what_is_wrong_with_iccs.html
    For your reference.

    That is a FUD and commercial propaganda.

    #145780

    DaniJ
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    ICCs can embed 3D LUTs, the article itself is also saying that:

    This is why SpaceMan ICC generates v4 ICC profiles, as it effectively embeds the full 3D LUT into the ICC profile, via the LutAtoBType tag. This can then be used for highly accurate display calibration, with the ICC associated to the display for which the 3D LUT was generated, for example via ‘Windows Colour Management’.

    This also works for v2 ICCs that DisplayCAL is generating, not only v4.

    The limitations the article is hinting at are mostly:

    • If you only use a 1D LUT + matrix you don’t have as much accuracy as a 3DLUT.
    • Certain software might not support certain ICC features – not an issue with Photoshop.
    • Higher chance of user error – using the wrong rendering intent (or even the wrong profile)
    • Higher chance of having an improper ICC generated by some apps (like the wrong chromatic adaptation)
    • Rounding errors. This I don’t agree with. 16 bit is plenty even for the 3D LUT. MadVR LUTs are also 16bit for example.
    #145781

    yuyu
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    I’m a beginner, and it seems I was mistaken.
    Thank you for correcting me.

    #145782

    Guillaume
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    @Vincent : Thank you for pointing this out. I read this article and thought about the fact it wasn’t right. I read it again and I began to acknowledge it but the more I read the more it felt like a seller that wants to make me buy his product.

    The only thing I love with 3D LUTs is its ability to set things properly. It has to be the case with ICC profiles but for a majority of software, it’s overlooked and interface elements aren’t properly rendered especially desaturated colors. 3D LUTs are static though, you have to know what you’re doing.

    #146054

    mattaja
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    Hi guys
    After a few sleepless nights and a ton of support I think I finally got DwmLut working on W11 25H2 builds >= 26200.8246.
    Check it out in my repo and let me know how it goes 🙂

    #146055

    mbze430
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    Hi guys
    After a few sleepless nights and a ton of support I think I finally got DwmLut working on W11 25H2 builds >= 26200.8246.
    Check it out in my repo and let me know how it goes 🙂

    You’re my new best friend.  It works (at least dual monitors with SDR Cube).  I’ll have to do some calibration cubes for HDR and see if it will slot in.  But thus far, it works.

    Thank you!

    • This reply was modified 1 week, 1 day ago by mbze430.
    #146057

    Guillaume
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    https://www.youtube.com/watch?v=d1NjkYjRn34

    Sorry for this meme SFX but that’s the best way to thank you ! 😀

    #146058

    mattaja
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    You’re my new best friend. It works (at least dual monitors with SDR Cube). I’ll have to do some calibration cubes for HDR and see if it will slot in. But thus far, it works.

    Thank you!

    Let me know if you find anything unusual with HDR then 🙂

    • This reply was modified 1 week ago by mattaja.
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