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Because tone mapping from an high dynamic range to a standard dynamic range is not standardised, there are some recommendations, but each app uses a slightly di
by galad87 4y ago
Because tone mapping from an high dynamic range to a standard dynamic range is not standardised, there are some recommendations, but each app uses a slightly different algorithm.
Then an app might implement tone mapping for HLG, some might display it as it is on a SDR screen (HLG is supposed to be watchable even on those old SDR screens.)
Or implement it mostly properly, but ignore the current screen color profile.
Even for SDR, some apps don't implement Bt.1886 yet, so you might see different results.
- aikinai 4y agoMentioned in a sibling comment, but actually I'm trying to edit using the HDR mode possible on native Apple screens (like the 1600 nits MacBook Pro). So I think I'm not running into any SDR mapping. It seems to be using the Mac HDR mode, but with a slightly different gamma that I don't know how to correct for.
- galad87 4y agoTone mapping is used for HDR screens too, if the screen has got less nits than the video. Anyway, probably it's something else, you will have more luck asking DaVinci Resolve developers. It could be they are ignoring the screen color profile, or they set something wrong, there are so many things that can go wrong.