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Implement initial support for *ACES* 2.0.
Signed-off-by: Thomas Mansencal <[email protected]>
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‎.gitmodules

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[submodule "opencolorio_config_aces/config/reference/aces-dev"]
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path = opencolorio_config_aces/config/reference/aces-dev
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url = https://github.com/ampas/aces-dev.git
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[submodule "opencolorio_config_aces/config/reference/aces-system"]
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path = opencolorio_config_aces/config/reference/aces-system
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url = https://github.com/colour-science/aces-system

‎README.rst

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- Discovery of *aces-dev* *CTL* transforms.
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- Generation of the *CTL* transforms graph.
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- `Spreadsheet <https://docs.google.com/spreadsheets/d/1SXPt-USy3HlV2G2qAvh9zit6ZCINDOlfKT07yXJdWLg>`__-driven generation.
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- `Spreadsheet <https://docs.google.com/spreadsheets/d/1z3xsy3sF0I-8AN_tkMOEjHlAs13ba7VAVhrE8v4WIyo>`__-driven generation.
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- Generators producing the *OCIO* **CG** and **Studio** configurations.
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- `Spreadsheet <https://docs.google.com/spreadsheets/d/1nE95DEVtxtEkcIEaJk0WekyEH0Rcs8z_3fdwUtqP8V4>`__-driven generation.
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- `Spreadsheet <https://docs.google.com/spreadsheets/d/1PXjTzBVYonVFIceGkLDaqcEJvKR6OI63DwZX0aajl3A>`__-driven generation.
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- Included *CLF* transforms along with generator and discovery support.
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‎docs/index.rst

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- Discovery of *aces-dev* *CTL* transforms.
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- Generation of the *CTL* transforms graph.
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- `Spreadsheet <https://docs.google.com/spreadsheets/d/1SXPt-USy3HlV2G2qAvh9zit6ZCINDOlfKT07yXJdWLg>`__-driven generation.
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- `Spreadsheet <https://docs.google.com/spreadsheets/d/1z3xsy3sF0I-8AN_tkMOEjHlAs13ba7VAVhrE8v4WIyo>`__-driven generation.
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- Generators producing the *OCIO* **CG** and **Studio** configurations.
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- `Spreadsheet <https://docs.google.com/spreadsheets/d/1nE95DEVtxtEkcIEaJk0WekyEH0Rcs8z_3fdwUtqP8V4>`__-driven generation.
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- `Spreadsheet <https://docs.google.com/spreadsheets/d/1PXjTzBVYonVFIceGkLDaqcEJvKR6OI63DwZX0aajl3A>`__-driven generation.
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- Included *CLF* transforms along with generator and discovery support.
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‎docs/process.rst

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The colour conversion graph is then used to create the *Analytical* config that maps 1-to-1 the **aces-dev** **CTL** transforms to theoretical **OpenColorIO** builtin transforms.
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This config does not work but it is useful to test basic generation capabilities whilst diagnosing issues in the mapping.
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The *Reference* config is driven by a *CSV* file generated from a `spreadsheet <https://docs.google.com/spreadsheets/d/1SXPt-USy3HlV2G2qAvh9zit6ZCINDOlfKT07yXJdWLg>`__ mapping the ``ACEStransformID`` to **OpenColorIO** builtin transforms.
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The *Reference* config is driven by a *CSV* file generated from a `spreadsheet <https://docs.google.com/spreadsheets/d/1z3xsy3sF0I-8AN_tkMOEjHlAs13ba7VAVhrE8v4WIyo>`__ mapping the ``ACEStransformID`` to **OpenColorIO** builtin transforms.
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- :func:`opencolorio_config_aces.generate_config_aces`
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CG Config Generation
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^^^^^^^^^^^^^^^^^^^^
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The *CG* config generator also uses a *CSV* file generated from a `spreadsheet <https://docs.google.com/spreadsheets/d/1nE95DEVtxtEkcIEaJk0WekyEH0Rcs8z_3fdwUtqP8V4>`__ that expresses which ``ACEStransformID`` should be used from the ``Reference`` config and which ``CLFtransformID`` should be used from the shipped *CLF* transforms.
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The *CG* config generator also uses a *CSV* file generated from a `spreadsheet <https://docs.google.com/spreadsheets/d/1PXjTzBVYonVFIceGkLDaqcEJvKR6OI63DwZX0aajl3A/edit#gid=365242296>`__ pivot table that expresses which ``ACEStransformID`` should be used from the ``Reference`` config and which ``CLFtransformID`` should be used from the shipped *CLF* transforms.
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- :func:`opencolorio_config_aces.generate_config_cg`
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Studio Config Generation
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^^^^^^^^^^^^^^^^^^^^^^^^
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The *Studio* config generator follows the same approach but uses a different `pivot table <https://docs.google.com/spreadsheets/d/1nE95DEVtxtEkcIEaJk0WekyEH0Rcs8z_3fdwUtqP8V4/edit#gid=1155125238>`__ of the spreadsheet.
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The *Studio* config generator follows the same approach but uses a different `pivot table <https://docs.google.com/spreadsheets/d/1PXjTzBVYonVFIceGkLDaqcEJvKR6OI63DwZX0aajl3A/edit#gid=1155125238>`__ of the spreadsheet.
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- :func:`opencolorio_config_aces.generate_config_studio`
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‎opencolorio_config_aces/clf/transforms/apple/generate.py

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clf_transforms = {}
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aces_transform_id = (
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"urn:ampas:aces:transformId:v1.5:IDT.Apple.AppleLog_BT2020.a1.v1"
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"urn:ampas:aces:transformId:v2.0:CSC.Apple.AppleLog_BT2020_to_ACES.a2.v1"
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)
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name = "Apple_Log_to_ACES2065-1"

‎opencolorio_config_aces/clf/transforms/apple/input/Apple.Input.Apple_Log_to_ACES2065-1.clf

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<InputDescriptor>Apple Log</InputDescriptor>
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<OutputDescriptor>ACES2065-1</OutputDescriptor>
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<Info>
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<ACEStransformID>urn:ampas:aces:transformId:v1.5:IDT.Apple.AppleLog_BT2020.a1.v1</ACEStransformID>
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<ACEStransformID>urn:ampas:aces:transformId:v2.0:CSC.Apple.AppleLog_BT2020_to_ACES.a2.v1</ACEStransformID>
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<BuiltinTransform>APPLE_LOG_to_ACES2065-1</BuiltinTransform>
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</Info>
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<LUT1D inBitDepth="32f" outBitDepth="32f" interpolation="linear" halfDomain="true">

‎opencolorio_config_aces/clf/transforms/arri/generate.py

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# Generate ARRI LogC4 to ACES 2065-1 Transform
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name = "ARRI_LogC4_to_ACES2065-1"
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aces_id = "urn:ampas:aces:transformId:v1.5:IDT.ARRI.ARRI-LogC4.a1.v1"
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aces_id = "urn:ampas:aces:transformId:v2.0:CSC.Arri.LogCv4_to_ACES.a2.v1"
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input_descriptor = "ARRI LogC4"
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output_descriptor = "ACES2065-1"
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clf_transform_id = format_clf_transform_id(FAMILY, GENUS, name, VERSION)

‎opencolorio_config_aces/clf/transforms/arri/input/ARRI.Input.ARRI_LogC3_EI800_to_ACES2065-1.clf

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<InputDescriptor>ARRI LogC3 (EI800)</InputDescriptor>
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<OutputDescriptor>ACES2065-1</OutputDescriptor>
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<Info>
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<ACEStransformID>urn:ampas:aces:transformId:v1.5:IDT.ARRI.Alexa-v3-logC-EI800.a1.v2</ACEStransformID>
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<ACEStransformID>urn:ampas:aces:transformId:v2.0:CSC.Arri.LogCv3_to_ACES.a2.v1</ACEStransformID>
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</Info>
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<Log inBitDepth="32f" outBitDepth="32f" style="cameraLogToLin">
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<LogParams base="10" linSideSlope="5.55555555555556" linSideOffset="0.0522722750251688" logSideSlope="0.247189638318671" logSideOffset="0.385536998692443" linSideBreak="0.0105909904954696" />

‎opencolorio_config_aces/clf/transforms/arri/input/ARRI.Input.ARRI_LogC4_to_ACES2065-1.clf

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<InputDescriptor>ARRI LogC4</InputDescriptor>
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<OutputDescriptor>ACES2065-1</OutputDescriptor>
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<Info>
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<ACEStransformID>urn:ampas:aces:transformId:v1.5:IDT.ARRI.ARRI-LogC4.a1.v1</ACEStransformID>
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<ACEStransformID>urn:ampas:aces:transformId:v2.0:CSC.Arri.LogCv4_to_ACES.a2.v1</ACEStransformID>
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</Info>
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<Log inBitDepth="32f" outBitDepth="32f" style="cameraLogToLin">
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<LogParams base="2" linSideSlope="2231.82630906769" linSideOffset="64" logSideSlope="0.0647954196341293" logSideOffset="-0.295908392682586" linSideBreak="-0.0180569961199113" />

‎opencolorio_config_aces/clf/transforms/blackmagic/generate.py

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# This transform is not yet part of aces-dev, but an ID will be needed for AMF.
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# Proposing the following ID:
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aces_transform_id = (
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"urn:ampas:aces:transformId:v1.5:"
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"ACEScsc.Academy.DaVinci_Intermediate_WideGamut_to_ACES.a1.v1"
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"urn:ampas:aces:transformId:v2.0:"
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"CSC.Blackmagic.DaVinci_Intermediate_WideGamut_to_ACES.a2.v1"
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)
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# Generate full transform.

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