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Activity Forums Adobe Premiere Pro How to use multiple masks in Lumetri (12.1.1)

  • How to use multiple masks in Lumetri (12.1.1)

    Posted by Al Davis on May 13, 2018 at 4:58 pm

    One of the greatest features I discovered in switching from FCP7 to PP, was the ability to create masks when applying all filters to contain effects to certain areas.

    I just did a secondary color correction to a clip utilizing Lumetri. I had spill in two distinct areas to clean up. The 1st mask I applied, I inverted and nicely eliminated the spill in that area. As many of you know, the second mask rendered the 1st useless, if I inverted it, or just would not work.

    In FCP, the play would be to “subtract” the 2nd mask. There is no such option in PP that I am aware of.

    Can anybody suggest a workaround so I can “double, or multiple mask” this filter?

    Many Thanks!

    Al Davis
    Visual Velocity
    Brookline, MA

    John Pale replied 8 years ago 3 Members · 7 Replies
  • 7 Replies
  • Paul Neumann

    May 14, 2018 at 12:46 pm

    Use an adjustment layer and apply another instance of Lumetri there?

  • Al Davis

    May 14, 2018 at 4:25 pm

    Thanks for the suggestion Paul. I did forget about this feature.

    I tried it on this color move. I copied the Lumetri filter with my adjustments, and then pasted it into the adjustment layer, and tried to “single” the 2nd mask. Still doesn’t work, as one mask still effects the other and offsets the result.

    Nothing to imitate the age old “subtractive” solution.

    The masks within filters in PP is a great thing. It would be even better, and more serviceable if it allowed multiple applications (of masks).

    I still feel like I am missing something here.

    Al Davis
    Visual Velocity
    Brookline, MA

  • Paul Neumann

    May 14, 2018 at 6:24 pm

    Try nesting the clip then adding the 2nd version of the correction to that nested clip.

  • Al Davis

    May 14, 2018 at 6:35 pm

    Tx – did that as well.
    No luck. It behaved in the same conflicted style as the layer adjustment.

    Al Davis
    Visual Velocity
    Brookline, MA

  • John Pale

    May 15, 2018 at 2:57 am

    Give this a try…

    Use two copies of the same clip. One for each correction. Copy the mask you are putting on the secondary Color Correction to the opacity parameter on the upper clip. Now only the area you are correcting will be superimposed over the other copy of the clip. You also have access to blend modes.

  • Al Davis

    May 15, 2018 at 5:08 pm

    Thank you John.
    This was very helpful, as it behaved exactly as you suggested.

    It would be great if you could execute multiple masks within the same filter parameter; but this does get the job done.

    Cheers!

    Al Davis
    Visual Velocity
    Brookline, MA

  • John Pale

    May 15, 2018 at 5:41 pm

    Yeah…there’s lots of room for improvement with Lumetri, but at least I’m finding ways to work around the shortcomings. Best of luck.

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