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Forums DaVinci Resolve Trying to lose highlight details

  • Trying to lose highlight details

  • Patrick Shead-Simmonds

    June 27, 2021 at 12:04 am

    Hi, I have a specific issue. I’m grading a shot in a room with large windows. It’s a period piece and I don’t want to see what’s outside the window. Now I can push the highlights up and lose the detail, but I want to then bring those crushed highlights down in another node to tint the colour – i.e. I don’t want my final result to be with the windows at 100IRE. However, when I do this because of the way that Davinci works, I keep rescuing those details in the background that I want to obscure. Does anyone have a work-around for this?

    Thanks,

    Patrick

  • Joseph Owens

    June 27, 2021 at 1:07 am

    Qualify the windows with, yes, a window or two…

    Use curves to crush out the amount of detail that you want to subtract.

  • Michael Gissing

    June 29, 2021 at 2:22 am

    If you add a node after you have pushed the highlights past 100 and then add the Gamut Mapping OFX plug in, it will clip the highlights and subsequent nodes will not be able to recover the highlights. There may be other OFX plugins that do the same but that one is simple

  • Paul Carlin

    July 2, 2021 at 4:00 pm

    What Michael said. The issue you are fighting against is 32-bit floating point math. You need to force the image through integer math to cause clipping. This is also known as clamping.

  • Chuck Savadelis

    July 2, 2021 at 4:39 pm

    Using Power Windows to isolate the windows, you could, perhaps, blur the exterior scene enough to make it unrecognizable, but still feel natural. Or, you could composite an exterior image (sky, trees, a period photo, etc.). Any of these might be preferable to a featureless void, and less noticeable or distracting.

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