Learn How To Build Your Custom Film Print ODT

March 9, 2023

Cullen Kelly shows you how to build a custom transform by combining a film print LUT with basic color science - to add style to images.

Tutorials  /  Custom Color Management  /  Learn How To Build Your Custom Film Print ODT
Series

Creating a custom film-emulation-based ODT

Wrapping up our series on custom color management, this is our most ambitious color management approach yet: building a custom transform by combining a film print LUT with some basic color science.

After years of working with various color management frameworks and deploying modular scene-referred looks within them, I’ve had the itch lately to develop a single-step output transform that incorporates creative and technical components. So in this Insight, we borrow the tone curve component of one of Resolve’s shipping Film Looks LUTs (Rec709 Kodak 2383 D65), and pair it with a gamut transform we’ll create within Resolve.

Key takeaways from this Insight

By the end of this Insight you should understand how to:

  • How tone curves and matrices are used to move between color spaces
  • Each of the technical steps that take our image from grading space to display space
  • How to leverage this knowledge to construct our own grading space to display space ODT

Related Mixing Light Insights

  • Getting to know Lattice – With LUTs so commonplace in modern color grading, sometimes you need to visualize and convert them – Lattice can help!

Additional Downloads for Premium Members

Premium members, be sure to grab the PLogLin DCTL that is featured in this Insight. I’ve also provided the 1D LUT that I generated out of Lattice.

Questions or Comments? Leave a comment!

Is this Insight useful to you? Let us know! Mixing Light is all about community discussions and we’re curious if you found this helpful, if you have something to add, or if you have more questions you need answered?

– Cullen

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Comments

Homepage › Forums › Learn How To Build Your Custom Film Print ODT


  • Marco Paba
    Member
    March 10, 2023 at 6:16 am

    The result is identical without the second CST (->709) because the linearization is inside the CST transformation

    [->LIN: Input Color Space: DaVinci Wide Gamut, Input Gamma: DaVinci Intermediate – Output Color Space: Rec.709, Output Gamma: Linear]


    Screenshot-2023-03-10-at-12.04.52
    • This reply was modified 2 weeks ago by  Marco Paba.
    • This reply was modified 1 week, 6 days ago by  Marco Paba.

  • Scott Stacy
    Member
    March 12, 2023 at 4:38 pm

    Hey Cullen,

    Thanks for the great insight. Very nice, innovative utility.

    I found that this will work in a Davinci YRGB Color Managed workflow for those of us who do not use CST in our node tree.

    In Color Management > Color Processing Mode = Custom > Input colorspace = ARRI Log3 > Timeline Color space = Davinci WG/Intermediate > Timeline Working Luminance = Custom 10000 nits > Output Color Space = Rec. 709 2.4 > Limit Output Gamma to = Output Color Space > Input DRT = None > Output DRT = Luminance Mapping (the next three boxes all checked).

    After your 1D LUT > CST Input Color Space = Rec 709 > Input Gamma = Rec. 709 > Output Color Space = Davinci Wide Gamut > Output Gamma = Davinci Intermediate > Tone Mapping Method = Luminance Mapping > Adaptation = default 9.0. No boxes are checked below.

    • This reply was modified 6 days, 13 hours ago by  Scott Stacy.

    • Marco Paba
      Member
      March 17, 2023 at 7:43 am
      Screenshot 2023-03-17 at 12.42.42

      • Scott Stacy
        Member
        March 17, 2023 at 10:24 am

        Hey Marco … Thanks. I will give this a shot.


      • Jamie Dickinson
        Member
        March 17, 2023 at 3:05 pm

        Something I’ve found very important is I often need to tweak that Max Input nits up to above 100 nits (often around 115, higher doesn’t seem to hurt) some 709 sources clip out when converted like this and are hard to fix in any other way so giving this head room is a good cure.


        • Marco Paba
          Member
          March 17, 2023 at 3:29 pm

          I agree


        • Scott Stacy
          Member
          March 17, 2023 at 9:20 pm

          Well … updated to 18.1.4 and it fixed the anomaly. I will edit my post above.

          • This reply was modified 6 days, 12 hours ago by  Scott Stacy.

  • Marco Paba
    Member
    March 17, 2023 at 2:54 pm

    Btw… for Tone Mapping Method I prefer DaVinci

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Prev
Cullen Kelly
Insight # ML 1201
Type Video
Duration 15:52
Skill Level Advanced
Skills DaVinci Resolve
Categories Color Management DCTL Lattice LUTs Resolve Color Management
Series Custom Color Management

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