Forum Post

  • MichaelH (Dolby)

    Hi. The trimmed SDR is a fully compliant SDR Rec.709/BT.1886. Not sure what you mean by"can't be displayed correctly". How is your screen set up and calibrated? Did you verify the SDR display on a reference display?
  • Hi Michael,
    Thanks for your reply. I'm creating content for delivery, and when I verify the exported video with an SDR trim (derived from DV) on an Apple XDR display, I'm not seeing what I expect. This matters because that's how the content will actually be viewed by a large portion of the audience — on certain streaming platforms, for example.
    The issue seems to be coming from the Rec709 2.4 transfer function not being fully compatible with these newer displays. For other projects, I've sometimes worked around this using a new color space in Baselight called "Web," which was recently introduced specifically to address this problem.
    My main question, from a colourist's perspective: what's the correct approach to mastering a Dolby Vision trim to SDR so that the intended contrast is preserved when viewed on XDR-type displays? As XDR-displays is a very common display in the audience, as well as I suppose one of the main reasons of using DV in the pipeline - is to preserve the most quality/dynamic range and color of the movie.
    Thanks,
    Veronica
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  • MichaelH (Dolby)

    We're creating a standard compliant SDR file. To adopt your content to a XDR driven by apple devices, I suggest exporting directly in Dolby Vision (e.g. profile 5) rather than in SDR. The Dolby Vision process doesn't support rendering using a different transfer function.