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17th April 2019, 08:44 | #55762 | Link |
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Can you just clarify for me, how do you select 4:4:4, so you mean not RGB and using YCbCr 444 in NCP?
And if so what are the gains ? I thought everyone was saying RGB Full was the correct setting ?
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Windows 10-1909 | i5-3570k | GTX 1070 Windforce OC Rev2 8GB : 430.64 | Pioneer VSX-534 | Philips 65PUS6703 - 65" Last edited by madjock; 17th April 2019 at 09:35. |
17th April 2019, 10:25 | #55763 | Link |
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No, we often use 4:4:4 to mean RGB or YCbCr 4:4:4. We cannot tell if a display is using RGB or YCbCr internally so we just use 4:4:4 to mean full resolution chroma to contrast against 4:2:2, which is the other option displays often use.
RGB Full is the correct setting in NCP.
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17th April 2019, 20:09 | #55767 | Link |
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@ryrynz
Thanks. Bit of a wake up call to be honest. When I have tried 4:4:4 yest PNGs before I thought everything was ok, what I never knew was that it had to be a native resolution and not zoom in to a 1080p which I did in the past with this 4K TV. So when I tried this https://imgur.com/a/J2VMDJj The text looks scambled, although very small. The link you gave I don't seem to have success with any of the 3 ? I cant see the 4:2:2 at all on the 4:4:4 test I cant see the 4:4:4 on the 4:2:2 Test I cant see anything on the 4:2:0 Test Since they are 1080p images I took my res down to 1080p but no joy. But the updated image in the link I can barely make out a 4:2:2 which is made up of lines rather than solid colour, but nothing else can be seen. What am I doing wrong ?
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Windows 10-1909 | i5-3570k | GTX 1070 Windforce OC Rev2 8GB : 430.64 | Pioneer VSX-534 | Philips 65PUS6703 - 65" Last edited by madjock; 17th April 2019 at 20:11. |
17th April 2019, 20:20 | #55768 | Link |
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Just view the image in the middle of the screen, don't change your resolution or scale the image at all.
You are only supposed to be able to see 4:4:4 if your screen is in 4:4:4, and everything else should be very faint. If you can only see 4:2:2 then your screen is in 4:2:2, not using full resolution chroma. That text image you linked is not useful for this. The image is designed to tell you the mode your screen is in, not show you what modes it supports. Only one (444, 422, or noting if 420) should be visible at a time.
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madVR options explained Last edited by Asmodian; 18th April 2019 at 03:40. |
17th April 2019, 20:35 | #55769 | Link |
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Well thats the problem, I can see 4:4:4 and 4:2:2 in their respective images ? But no faint outline of the other numbers.
EDIT :MMM well with the updated image it was zooming in a fraction, it looks like Im 4:2:2 but the HDMI input selection is set for 4:4:4 and drivers are set at RGB Full.
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Windows 10-1909 | i5-3570k | GTX 1070 Windforce OC Rev2 8GB : 430.64 | Pioneer VSX-534 | Philips 65PUS6703 - 65" Last edited by madjock; 17th April 2019 at 20:42. |
17th April 2019, 20:44 | #55770 | Link |
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Your TV must be converting to 4:2:2 internally.
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17th April 2019, 20:54 | #55771 | Link |
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Ah well I just selected GAME for picture type and now I can see a dark 4:4:4 ?
So all good I think.
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17th April 2019, 20:55 | #55772 | Link |
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So if the last builds ignore any metadata, which value is used as MaxCLL when madVR is not measuring the frame peak luminance? 10000? I think an option to set this could be very useful for testing, but at least there should be some information in the OSD. Also, what exactly does the tone map value mean when it measures the frame peak luminance?
Last edited by Alexkral; 17th April 2019 at 20:57. |
17th April 2019, 21:13 | #55773 | Link | |
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Quote:
https://linustechtips.com/main/uploa...8c8d22f67e.png Take a picture OF the TV of the bottom txt part with the red on blue blue on red with the pixels in focus (up close) and we'll tell you if it's 4:4:4
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17th April 2019, 22:28 | #55775 | Link | |
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Quote:
I never asked for advice, but rather documentation so I can make my own decision. |
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17th April 2019, 23:03 | #55777 | Link |
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Fortunately Asmodian and Warner306 have made some very useful guides, but sometimes that's not enough, especially when the options are constantly changing. I'm thinking about making an objective comparison between the madVR scaling algorithms, but right now I'm on other things.
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17th April 2019, 23:59 | #55778 | Link | |
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Mine really is not meant to be used as a guide.
Quote:
If any option is unclear to you please ask (in that thread if possible, please ), I always want to improve my descriptions and the post in general.
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18th April 2019, 00:47 | #55779 | Link | |
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Quote:
That said, Something must be noted about Electricity use. Because For example, at lower resolutions outputs, Lanczos is really enough, but people do things like NGU chroma. HUGE waste of electricity.
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18th April 2019, 00:55 | #55780 | Link | |
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Quote:
hdrVideoPeak hdrVideoPeak is the maximum peak brightness of any pixel in the source. hdrVideoPeak uses the MaxCLL (Maximum Content Light Level). If MaxCLL is 0, or if both MaxCLL and MaxFALL are rounded to an even multiple of 50 (e.g. 500/500 or 10000/450), then MaxCLL is considered invalid and the mastering display maximum luminance is used instead. Sources measured with madMeasureHDR will set hdrVideoPeak to the measured peak of 99.9% of all frames to exclude any outlying pixels, or a valid MaxCLL, whichever value is lower. If you search through the links in the HDR section of the Kodi guide, you'll find some detailed descriptions of the tone mapping methods. The tone map to value in the OSD shows the target for the tone curve, which is essentially the value that is used for the mastering display peak in BT.2390. The lower the mastering peak or measured frame peak, the higher the knee point and the less aggressive the roll-off becomes.
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HOW TO - Set up madVR for Kodi DSPlayer & External Media Players |
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direct compute, dithering, error diffusion, madvr, ngu, nnedi3, quality, renderer, scaling, uhd upscaling, upsampling |
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