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JRVR Feature request - Native colorspace playback option

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Hendrik:
I could add a simple checkbox to enable gamut processing after the 3DLUT ran, which would then obey the Screen Gamut option, and allow you to expand the signal to BT.2020 without changing the colors. This would only work if the 3DLUT has the same input and output gamut, but I assume this is the case for you.

What I still wonder however, how are you calibrating your screen to generate a DCI-P3 LUT if you cannot use a DCI-P3 display mode?

Re-reading parts of the thread, do note that JRVR has no equivalence of the "report 2020 to display, for NVIDIA GPU" option, because I generally feel a single-vendor specific option adds a lot of complexity with only limited use. And the Windows built-in option doing the same is non-functional.

karmat63:
I simply put the display in BT.2020, run Diplaycal and profile, then choose DCI.P3 3dlut gamut.
Honestly, in last days I've compared MadVR  and JRVR running DCI.P3 3dlut derived from the same display profile, and they look visually the same (with small differences). Checking MadVR "report 2020 to display" automatically triggers the correct setting (2020) on the projector. In JRVR I'm doing it manually (setting "3Dlut gamut (source clorspace)" to DCI.P3).

karmat63:
Maybe I can even create a BT.709 3dlut from the profile setting in 2020, so I can run everything in BT.2020 color space letting the 3dlut doing the relevant corrections... But I don't know if it works as it should...
I will test in next days

karmat63:

--- Quote from: Hendrik on May 27, 2023, 12:58:04 pm ---I could add a simple checkbox to enable gamut processing after the 3DLUT ran, which would then obey the Screen Gamut option, and allow you to expand the signal to BT.2020 without changing the colors. This would only work if the 3DLUT has the same input and output gamut, but I assume this is the case for you.
--- End quote ---

This would be nice; should it work as P3 in 2020 gamut?

jmone:
I would have thought the option of "P3 limited in 2020" would be the go.  This is how most (not all) UHD BD's are authored and most displays HDR capable displays will take a 2020 or 709 colour space.

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