Problems creating 3D LUT

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  • #6634

    CraftyClown
    Participant
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    Hi Florian,

    Firstly thank you for creating a fantastic GUI with DisplayCAL. I’ve been using it for a number of years with great success.

    I’m currently having a problem creating a .cube 3D LUT for my Blackmagic HDLink Pro box. Every time I try to load a LUT the HDLink utility will crash and need to close. I had successfully loaded a LUT onto the box about 5 years ago and it is only now that I am trying to set the box up with a different screen (a commercial LCD that I can use as a client monitor of sorts) that I am having problems. I can successfully export and then reload the old LUT from inside the HDLink box without getting a crash (not sure whether that is relevant?)

    Can you think of a reason why this might be happening?

    Cheers

    #6637

    CraftyClown
    Participant
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    I think I may have found the solution through scouring the forums.

    I didn’t set the 3D LUT to be 17 x 17 x 17, which I understand HDLink requires.

    I’ve left the office now so I can’t check until the morning, but hopefully that is the cause for HDLink Utility crashing.

    Whilst I have your attention I do have another question though:

    As the monitor (crappy LCD TV) is connected directly to the HDLink box, I am using the Resolve method (IP address and port) to calibrate it. I am also selecting the Resolve profile from the Displaycal settings.

    Is this the method you would recommend?

    Cheers

    #6651

    Florian Höch
    Administrator
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    As the monitor (crappy LCD TV) is connected directly to the HDLink box, I am using the Resolve method (IP address and port) to calibrate it. I am also selecting the Resolve profile from the Displaycal settings.

    Is this the method you would recommend?

    That’s a reasonable approach I think.

    #6717

    S Simeonov
    Participant
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    Florian,

    do we have to choose “disable gpu gamma ramps” option in madvr when using 3dlut of all kinds (etc. with linear calibration included) or displaycal is doing that?

    #6750

    Florian Höch
    Administrator
    • Offline

    do we have to choose “disable gpu gamma ramps” option in madvr when using 3dlut of all kinds

    No, as long as the 3D LUT has calibration applied and linear calibration appended (which is the default if it was created by DisplayCAL).

    #6788

    S Simeonov
    Participant
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    With madvr’s option “enable windowed overlay” WtW is clipped when using a 3DLUT? Is this clipping really noticeable, and is it a bad sort of effect when uisng 3Dlut?

    #6793

    Florian Höch
    Administrator
    • Offline

    With madvr’s option “enable windowed overlay” WtW is clipped when using a 3DLUT? Is this clipping really noticeable, and is it a bad sort of effect when uisng 3Dlut?

    It’s actually kind of a desirable effect, because real content is not supposed to contain WtW.

    #6802

    S Simeonov
    Participant
    • Offline

    With madvr’s option “enable windowed overlay” WtW is clipped when using a 3DLUT? Is this clipping really noticeable, and is it a bad sort of effect when uisng 3Dlut?

    It’s actually kind of a desirable effect, because real content is not supposed to contain WtW.

    Thank you, I guess I’ll use windowed overlay 🙂

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