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21st March 2018, 23:33 | #49701 | Link | |
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Quote:
Honestly I think the "what don't you try it" answer is a bit rude IMHO. It provides no information, and presumably if the user had the time and motivation to do the comparison themselves they would already have done so. If you don't know the answer, then don't post. |
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21st March 2018, 23:36 | #49702 | Link |
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Thank Nev, glad that I was right to err on the side of caution (when you don't know, don't assume is my motto). I've learnt my lesson
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21st March 2018, 23:45 | #49703 | Link |
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there are no general answer so we simply don't say anything anymore or we say there are defaults keep them?
and manni if you really want to get an headache think what this does to the dithering and how do you turn this back to a lower bit deep. |
22nd March 2018, 00:07 | #49704 | Link | |
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My point is... that it's already been answered many times.
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Asmodian, perhaps you could add a bit more info on this in your guide? Last edited by ryrynz; 22nd March 2018 at 00:18. |
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22nd March 2018, 00:14 | #49705 | Link |
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I don't know, stating your assumption can also be very helpful. I would never have guessed Nev's trick but it is probably what really happens. I would never have known if Nev didn't need to correct me.
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22nd March 2018, 00:19 | #49707 | Link |
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Its definitely in use in some things, but I can't exactly dump the HDMI data into a file to look at it, so... (now that would be a handy thing to have!)
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22nd March 2018, 00:46 | #49709 | Link |
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Hmm.. I actually have one... Maybe I should do some testing.
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22nd March 2018, 01:41 | #49710 | Link | |
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NV HDR (banding) vs OS HDR (no banding)
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I've come to a conclusion, but I don't know how to explain why it happens. I tested wit the movie Allied, too and these are my findings: Whether I chose "Use default color settings" or "Use NVIDIA color settings with RGB 12 bpc" didn't matter for the results I got. Either settings ended up with the same result, but to be consistent I used these settings (https://imgur.com/bx6QlS8) during the following tests: 1st test: enable "passthrough HDR content to the display" and enable "send HDR metadata to the display". This resulted in an automatic switch to HDR mode when I played the video and the madVR OSD shows (NV HDR): https://imgur.com/OZnoM6AI can see banding on the blue sky when on D3D11 fullscreen windowed (10 bit) and the banding disappears with I right click the video and it shows D3D11 fullscreen windowed (8 bit) 2nd test: enable "passthrough HDR content to the display" and disable "send HDR metadata to the display". This doesn't automatically change to HDR mode and I have to manually enable "HDR and advanced color" on the Windows 10 Display Settings and the madVR OSD shows (OS HDR): https://imgur.com/i1hLNmCI can't see any banding on the blue sky when on D3D11 fullscreen windowed (10 bit) or (8 bit). I believe that when playing a 2160p 10bit HDR 23.976fps video and having madVR set up to output 10 bit, that all is going the best way possible. What I don't understand is why when sending the HDR metadata, that results on NV HDR, I get banding and when not sending the HDR metadata, and manually enabling the OS HDR, I get perfect image and no banding... Why is OS HDR behaving differently than NV HDR for the same settings?
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22nd March 2018, 02:02 | #49711 | Link |
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Is 3GB card enough for upscaling to 1440p? I am thinking of getting a 1060 instead of 1050TI but the 6GB version is too expensive right now. Not sure if 1050TI is enough for upscaling to 1440 though.
Last edited by seiyafan; 22nd March 2018 at 02:04. |
22nd March 2018, 10:35 | #49713 | Link |
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As I've said in previous posts, there is a lot more noticeable banding when sending "12-bit" to current-gen TVs compared to 10bit. Regardless of madVR or standalone UHD-players. So padded zeros or not - the result is more banding.
For example check out threads regarding Panasonics UB700/900 players - people were getting banding until Pana released new firmware enabling 10bit. I myself got a lot less banding outputting 10bit from AMD compared to nvidias 12bit (Samsung JS9505).
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22nd March 2018, 11:42 | #49715 | Link |
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Or those crappy TVs should stop accepting 12-bit if they can't properly deal with it, then.
The fault clearly lies with the device that advertises support for a mode that it can't process properly.
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LAV Filters - open source ffmpeg based media splitter and decoders Last edited by nevcairiel; 22nd March 2018 at 11:46. |
22nd March 2018, 11:49 | #49716 | Link | |
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Quote:
I long for a world where companies open a special section of their website, dedicated to enthusiasts, with all information relative to what's necessary to defeat the so-called "enhancements" that they introduce to satisfy undiscerning eyes. |
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22nd March 2018, 13:52 | #49717 | Link | |
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Quote:
Zero banding in the Allied clip here, and same results with NV HDR and OS HDR. What is sure is that people should test whether their display supports 12bits or not before enabling it. 8bits is a safer option unless 12bits support is confirmed.
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22nd March 2018, 14:03 | #49718 | Link |
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While you're right on TVs, I still don't get why NVIDIA won't give the option of 10-bit HDMI output.
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Tags |
direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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