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#54621 | Link |
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Join Date: May 2004
Posts: 4,846
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Try 175 to start (below your max nits or what I believe is your max nits anyway) and see what it looks like. You can always adjust it until it looks the way you want brightness wise. It might take some playing around to get it set up just the way you want, but, start there and see what happens. If it's too dark, try lowering the target nit until it looks right.
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HTPC: Windows 10, I9 9900k, RTX 2070 Founder's Edition, Pioneer Elite VSX-LX303, LG C8 65" OLED |
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#54622 | Link | |
X Cinema Projectionist NZ
Join Date: Feb 2006
Location: Auckland NZ
Posts: 297
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#54624 | Link | |
Registered User
Join Date: May 2018
Posts: 259
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I have only been messing with HDR for about a month now, and the more I read, the more I do not understand what to do with it. It seems there is no real calibration settings for HDR and you for the most part have to let your TV do its thing, I also have no idea how people know what is good or bad. Initially I was impressed with HDR but I don't have a dark picture that everyone speaks about, and I don't really want a dark picture either. |
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#54625 | Link | ||
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Join Date: Mar 2002
Posts: 2,011
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Probably they don't, but they just like the result. Not to mention that every manufacturer can literally do whatever they want with HDR10, there's no strict standard for it. Quote:
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Ryzen 5 2600,Asus Prime b450-Plus,16GB,MSI GTX 1060 Gaming X 6GB(v398.18),Win10 LTSC 1809,MPC-BEx64+LAV+MadVR,Yamaha RX-A870,LG OLED65B8(2160p@23/24/25/29/30/50/59/60Hz) | madvr config |
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#54626 | Link | |
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Join Date: Oct 2012
Posts: 6,848
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so it kind of lowers "CR" and there is no way around that. there is a diffuse level which is far away from the black so they should be untouched for the most part. |
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#54627 | Link | |
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Join Date: Dec 2014
Posts: 1,127
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It would also help to use the current test build found in Soulnight's thread: https://www.avsforum.com/forum/26-ho...rget-nits.html. There is actually a new test build available if you browse to Page 24, Post #712 that hasn't yet been added to the first post. To use the test build, extract the zip file into the madVR installation folder overwriting existing files. madVR must be closed when you do this. I prefer "highlight recovery strength" set to "medium," but higher values can also work. Make sure you uncheck all of the checkboxes related to tone mapping under "trade quality for performance." The other options have been simplified in this build. If you get that far and want to go further, you can try pre-measuring your files with madMeasureHDR as explained here: https://forum.kodi.tv/showthread.php...406#pid2750406 Once your files are measured, you can experiment with some of the other tools mentioned there, including Soulnight's dynamic target nits tool.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
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#54628 | Link | |
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Join Date: Dec 2014
Posts: 1,127
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I have been using HDR profile rules very similar to Manni's to match the target nits to the movie's measured AvgFMLL (Average Frame Maximum Light Level): if (hdr) and (AvgFMLL < 1) "General HDR" else if (hdr) and (AvgFMLL <= 100) "200 nits" else if (hdr) and (AvgFMLL <= 160) "225 nits" else if (hdr) and (AvgFMLL <= 190) "250 nits" else if (hdr) and (AvgFMLL <= 225) "275 nits" else if (hdr) and (AvgFMLL <= 250) "300 nits" else if (hdr) and (AvgFMLL <= 270) "325 nits" else if (hdr) and (AvgFMLL <= 300) "350 nits" else if (hdr) and (AvgFMLL <= 380) "375 nits" else if (hdr) and (AvgFMLL <= 550) "400 nits" else if (hdr) and (AvgFMLL <= 700) "425 nits" else if (hdr) and (AvgFMLL > 700) "480 nits" You have to measure your files for profile rules like these to work. This approach focuses more on preserving the dynamic range of the source, but it also gets the brightness/contrast right much of the time. I haven't tried to optimize them any further, only simplify them, but it does a decent job of selecting a curve most of the time. Manni's original rules also incorporate the AvgFALL and I removed that bit. This all could become a moot point if Soulnight's approach to changing the target nits dynamically during the movie ever works smoothly.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players Last edited by Warner306; 8th February 2019 at 18:27. |
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#54629 | Link |
Registered User
Join Date: Dec 2014
Posts: 1,127
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If you are testing with the latest builds and still find the image is too dark, trying changing the output gamma in madVR. Even those with a display calibrated to 2.20 can sometimes get a better result by setting madVR to 2.40.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
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#54630 | Link | |
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Join Date: May 2013
Posts: 629
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My 2.4 luts are always darker Also, is there a lut switcher of sorts in madvr that can cycle the luts in a folder ?
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#54631 | Link | |
Registered User
Join Date: Oct 2012
Posts: 6,848
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with HDR->SDR madVR trys to archive a gamma of 2.2 and at that gamma the brightness matches PQ brightness. so if you now set your display is calibrated to 2.4 it will lower the gamma so the image looks brighter and is effect gamma 2.2.
with a target 2.4 3D LUT it doesn't do that because it doesn't known the 3D LUT gamma so the image is darker in comparison and mathematically wrong. this should not be confused with color and gamma setting which work different and again don't work properly with a 3D LUT. Quote:
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#54632 | Link |
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Join Date: Jul 2014
Posts: 839
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Good news: it looks like 418.81 fixes the levels issues that I had with the JVCs in 12bits. So now you can get the correct levels with NCP set to 4K23 12bits RGB Full and MadVR set to video levels (16-235) with the projector set to standard HDMI.
That means that there is officially no reason to stay with 385.28, at least here. Using CRU, custom refresh survive a reboot (as long as 23p is your default rate, not 60p). Great to have custom refresh rates, correct levels and optimized 3D with the same drivers, with Asio4all support as well. Still not an option for those who need HDMI passthrough for HDR, as the metadata is still not correct sadly. But if you use pixer shader tonemapping as I do, 418.81 seem to work great. I just hope that it will be the same with my new RS2000 (arriving next week) and that ideally the 8bits magenta bug will be gone on the new models. I'll report back when I've been able to test.
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Win10 Pro x64 b20H2 Ryzen 5950X@4.5Ghz 32Gb@3600 Zotac 3090 Trinity 24Gb RGB Full 8bits 460.89 madVR/jRiver/MyMovies/CMC Denon X8500H>madVR Envy Extreme>HD Fury Maestro>JVC RS2000 Last edited by Manni; 8th February 2019 at 18:05. |
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#54633 | Link |
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Join Date: May 2004
Posts: 4,846
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I need to be clear on one point here. This is true if you are converting to SDR. if you are outputting to HDR then a higher target nit value would correspond to a brighter image. Yes, this can be somewhat confusing to wrap your head around in the beginning but it does make sense. Making it "too bright" definitely can cause unwanted issues, yes.
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HTPC: Windows 10, I9 9900k, RTX 2070 Founder's Edition, Pioneer Elite VSX-LX303, LG C8 65" OLED |
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#54634 | Link | |
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Join Date: Jan 2017
Posts: 107
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AMD Ry 1500x - 8GB - RX460 4GB TV Philips 55pus6501+ Marantz 1608 avr WIN10(1903) 4K/444RGB Mediaportal - Mpc-hc MADVR-D3D11/10bit |
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#54635 | Link | |
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Join Date: Jul 2014
Posts: 839
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![]() I use HDMI bitstream for movie audio playback.
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Win10 Pro x64 b20H2 Ryzen 5950X@4.5Ghz 32Gb@3600 Zotac 3090 Trinity 24Gb RGB Full 8bits 460.89 madVR/jRiver/MyMovies/CMC Denon X8500H>madVR Envy Extreme>HD Fury Maestro>JVC RS2000 |
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#54636 | Link |
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Join Date: Oct 2017
Posts: 274
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It's great to see nVidia is addressing issues for JVC PJ users using madVR. In the mean time, for three driver series dating back to last year, they still fail to engage HDR mode because they can't even passthrough. I installed 418.81 a few days ago. It failed as miserable as the previous dozen or so.
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HOW TO-Kodi 2D-3D-UHD (4k) HDR Guide Internal & External Players W10 20H2 960-4GB RGB 4:4:4 @Matched Refresh Rates 8,10,12bit KODI 19 MPC-HC/BE PDVD19 DVDFab 3,5 & 6 PotPlayer 82" Q90R Denon S720W |
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#54637 | Link |
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Join Date: Apr 2015
Posts: 62
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@Manni
Does other apps like HDR 3D games also send wrong metadata or it's only related to madVR?
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ZOTAC MAGNUS EN1060K: Win 10 x64 + Kodi DSPlayer x64 LG OLED65C8 / Denon AVR-X3200W / KEF E305+ONKYO SKH-410 / Synology DS2415+ / Logitech Harmony 950 Last edited by sat4all; 9th February 2019 at 08:14. |
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#54638 | Link | |
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Join Date: Dec 2014
Posts: 1,127
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
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#54639 | Link |
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Join Date: Jul 2014
Posts: 839
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No idea, I haven't tested and don't have any HDR games.
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Win10 Pro x64 b20H2 Ryzen 5950X@4.5Ghz 32Gb@3600 Zotac 3090 Trinity 24Gb RGB Full 8bits 460.89 madVR/jRiver/MyMovies/CMC Denon X8500H>madVR Envy Extreme>HD Fury Maestro>JVC RS2000 |
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#54640 | Link | |
Registered User
Join Date: Jan 2017
Posts: 107
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Quote:
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AMD Ry 1500x - 8GB - RX460 4GB TV Philips 55pus6501+ Marantz 1608 avr WIN10(1903) 4K/444RGB Mediaportal - Mpc-hc MADVR-D3D11/10bit |
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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