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Author Topic: NEW: Support for rendering Theater View in BT.2020 color primaries (Settings ->  (Read 598 times)

murray

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I just have to say a huge big THANK YOU to Hendrik for making this possible on the new update!!!!

Im still amazed how great MC and JRVR is.....
for me I get everything I could possibly wish for with video playback, I would recommend for those that havent tried it, do so!!!!

Can I ask for others here who wanted this feature to test it, I have a funny feeling it looks a bit greenish (not like BT709) on the thumbs in Theatre View.
I might be crazy but can others test and get back to me please?

Thanks to all you developers at JRiver, its the best!
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Hendrik

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In comparison to BT.709 it will look more green - but that should be because BT.709 was not green enough on a BT.2020 screen.
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~ nevcairiel
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TheShoe

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It looks quite green on my OLED.  Turning it off, personal preference I guess, if this is supposed to be accurate

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Hendrik

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Note that its only supposed to be used when your display is configured to expect BT.2020 SDR, which is not that common a setup for TVs, but was added for certain projector setups.
If you use HDR output, then Windows will convert the colors to BT.2020, so you should not let MC do it, and most SDR setups will expect BT.709 (eg. the default color for PCs), so SDR BT.2020 is rather special.
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~ nevcairiel
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murray

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I used to run 709 right through the chain even for HDR to SDR on my JVC projs, and Theatre View menu and thumbs looked normal. Now I run 2020 locked on for HDR to SDR but Theatre View menu is definitely greenish for all the thumbs. Its easy to change them back and forth to see this green colour tint. Im not sure what causes this......
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TheShoe

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Note that its only supposed to be used when your display is configured to expect BT.2020 SDR, which is not that common a setup for TVs, but was added for certain projector setups.
If you use HDR output, then Windows will convert the colors to BT.2020, so you should not let MC do it, and most SDR setups will expect BT.709 (eg. the default color for PCs), so SDR BT.2020 is rather special.

Helpful - thanks!
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datdude

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I'd add a tooltip to the option that indicates it's primarily for projectors.
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Hendrik

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I have also identified an issue with the option where the conversion matrix was transposed compared to what OpenGL wants, resulting in the green tint that was observed. It'll be rectified in the next version. The colors now match what JRVR would output when tasked with the same (eg. I made a short recording of Theater View and played it through JRVR to see the same color transform).
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~ nevcairiel
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Manni

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May I suggest that you rename the option adding “SDR” to it to avoid confusion? That way people who use theatre mode in HDR shouldn’t be confused.
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murray

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May I suggest that you rename the option adding “SDR” to it to avoid confusion? That way people who use theatre mode in HDR shouldn’t be confused.
Manni can I please ask you, is it ok if you run HDR to SDR and set JRVR to BT2020 and the JVC NZ800 also BT2020, is this better than JRVR and the proj locked to BT709?

I Google and search chat GPT and they both say this is a NO NO!
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Manni

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Sorry but I don't have my JVC anymore, I have an HDR TV (Samsung S90C 77") and I only use OS HDR, so the colors are correct in Theatre View without that option. That's why I suggested to add "SDR" to the option name so that users who don't need it don't get confused.
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