Latest post Fri, Sep 28 2018 9:43 PM by jwrl. 4 replies.
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  • Thu, Sep 27 2018 8:07 PM

    Selective/masked colour grading?

    Hi,

    I've just finished a time lapse sequence where 2/3 of the screen is sky and the bottom 1/3 is buildings.  Because of the relative exposure difference the buildings are dark. Is there a way in MC of sectioning off the buildings so as to colour grade these separately?

    Thank you,

    DC

    Asus N55SF Notebook running Windows 10 Home Processor: Intel(R) Core (TM) i7-2670QM CPU @ 2.20GHz 2.20GHz Installed memory (RAM): 8.00 GB System type... [view my complete system specs]
  • Fri, Sep 28 2018 2:39 AM In reply to

    • Martin Fox
    • Top 500 Contributor
    • Joined on Fri, Mar 14 2014
    • Sydney Australia
    • Posts 209
    • Points 2,165

    Re: Selective/masked colour grading?

    Yes make as many layers of the same material as you need separate grades,

    Bottom layer = main grade

    Use the Animatt tool to draw your mask ( for the layers above bottom layer ) for your tweek grade on next layer up

    (the spot color tool can tweek too)

    Remember command click on the layer monitor icon in the timeline lets you solo the track (you dont see the track underneath) this can be usefull. (the monitor icon is green when active)

    iMac Retina27 late 2017 4.5Gz i7 40GB AMD 8GB with Sata Raid OS 10.13.4 MC 2018.3 BMD mini monitor with Eizo monitor [view my complete system specs]
  • Fri, Sep 28 2018 5:47 AM In reply to

    • jwrl
    • Top 25 Contributor
    • Joined on Thu, Oct 13 2005
    • Melbourne, Australia
    • Posts 8,372
    • Points 96,860

    Re: Selective/masked colour grading?

    I'd start simpler than that.  Colourgrade your sky and your buildings layers first, with your sky layer on V1 and your buildings layer on V2.  Add a luma key to V2 and trim gain and softness to get what you need.

    If that doesn't get you exactly what you want, you could also do it using a matte key.  Add a third layer and on that layer stretch the levels of the sky and background to generate a high contrast version which you then use to matte your sky grade into your building grade.  Takes three layers, but it will do it.  With that approach you may also have to rotoscope the matte a little using Animatte.

    MC 7.0.4 - Asus P6T Deluxe V2 mobo - Intel i7 920 2.66GHz - Windows 7 Ult64 SP1 - nVidia Quadro FX 1800 - 16 Gbyte low latency DDR3 RAM - Internal 8 Tb... [view my complete system specs]
  • Fri, Sep 28 2018 8:07 AM In reply to

    Re: Selective/masked colour grading?

    Fantastic - two different methods !  Can anyone point me to a video tutorial ?

    Thank you,

    DC

    Asus N55SF Notebook running Windows 10 Home Processor: Intel(R) Core (TM) i7-2670QM CPU @ 2.20GHz 2.20GHz Installed memory (RAM): 8.00 GB System type... [view my complete system specs]
  • Fri, Sep 28 2018 9:43 PM In reply to

    • jwrl
    • Top 25 Contributor
    • Joined on Thu, Oct 13 2005
    • Melbourne, Australia
    • Posts 8,372
    • Points 96,860

    Re: Selective/masked colour grading?

    Experiment.  You can't break anything.

    MC 7.0.4 - Asus P6T Deluxe V2 mobo - Intel i7 920 2.66GHz - Windows 7 Ult64 SP1 - nVidia Quadro FX 1800 - 16 Gbyte low latency DDR3 RAM - Internal 8 Tb... [view my complete system specs]
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