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Old 18th January 2020, 21:38   #58401  |  Link
mclingo
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yes, its not quite as bad as that, its not far off though, those red gloves look orange on my system as well as washed out.
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Old 19th January 2020, 00:35   #58402  |  Link
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Do you have to be in YCbCr/YUV format to subsample chroma data? I heard RGB doesn't support it...
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Old 19th January 2020, 01:49   #58403  |  Link
Asmodian
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Yes, subsampling chroma requires having the chroma separate from the luma.

RGB has these concepts mixed together, changing R (or G/B) changes both the chroma and the luma values. The chroma is Cb and Cr (color information) while the luma is Y (black and white information). Subsampling the chroma is simply resizing the Cb and Cr channels to 960x1080 (422) or 960x540 (420) for nominally 1920x1080 video.

YCbCr is an odd concept, originally developed to make color TV signals backwards compatible with black and white TVs (well it is the digital version of YUV, the analog version of this concept). You could make red and blue half the resolution of green for a similar (but much worse) kind of subsampling but no hardware actually supports such a terrible quality option. Doing the matrix math to first convert to YCbCr is definitely worth it if you want to subsample.
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Last edited by Asmodian; 19th January 2020 at 01:58.
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Old 19th January 2020, 16:46   #58404  |  Link
Milez7494
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I've used MadVR for a while now and noticed it's not been updated in a while.

I'm not asking when the next update is going to come out but does anyone know what the status of the project is? Madshi doesn't look like he's posted here since the last update.

Genuinely curious since MadVR appears to be a very popular piece of software. It's strange that the developer would go nearly a year without letting the community know what's going on (I'm not saying that we're entitled to this or that Madshi owes us anything).
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Old 19th January 2020, 17:16   #58405  |  Link
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He is still working on it. He was just very busy with another project as well. You can expect a new version sometime in the coming months with a cool new advanced dynamic tonemapping algorithm. You can follow development details on another forum.
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Old 19th January 2020, 19:25   #58406  |  Link
leeperry
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any idea why on W7/HD7850/1080p60 DVI any kind of NGU is now randomly running in B&W when using FS(E or not), windowed is fine and also any other kind of doubler. I haven't changed anything
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Old 20th January 2020, 22:36   #58407  |  Link
SirMaster
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Quote:
Originally Posted by Milez7494 View Post
I've used MadVR for a while now and noticed it's not been updated in a while.

I'm not asking when the next update is going to come out but does anyone know what the status of the project is? Madshi doesn't look like he's posted here since the last update.

Genuinely curious since MadVR appears to be a very popular piece of software. It's strange that the developer would go nearly a year without letting the community know what's going on (I'm not saying that we're entitled to this or that Madshi owes us anything).
There have actually been 113 (plus a few extra) beta builds of madVR since the last official release as madshi has been aggressively tweaking and improving the HDR to SDR tone-mapping.

He doesn't want to do an official release until it's all just right.
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Old 21st January 2020, 05:07   #58408  |  Link
Magik Mark
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Guys,

Can you help me create a profile that would do the ff:

If video has letter box and black bar width will not fit 2 rows of subtitle then move image to top and subtitle to the bottom of the screen
else move subtitle to the bottom of the screen only
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Old 21st January 2020, 05:36   #58409  |  Link
huhn
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madVR doesn't know how big the subtitles are

and even if madVR could do that it would mean the image could be moved alot why would you want that.

just move it to the top all the time this way the image doesn't move from time to time.
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Old 21st January 2020, 21:10   #58410  |  Link
Wilmar
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Hi everyone!
I can’t make HDR work properly with madVR and PotPlayer + 4K HDR-capable TV.
I enabled HDR in madVR settings – screenshot.
My MadVR settings config is here.
The TV says it’s getting HDR image. However, the colours don’t look HDR at all. Moreover, when played via the TV directly, the video looks properly. But playing it via the PC results in faded, dull and dark image.
I tried enabling and disabling Windows HDR – to no avail.
Here’s what PotPlayer says about the video with Windows HDR enabled and disabled respectively.
No Windows HDR
Windows HDR
Am I doing something wrong?
Thanks.

My configuration:
Windows 10 64 bit 1903
Nvidia Geforce 1080Ti (Driver ver. 441.87)
MadVR ver. 0.92.17
PotPlayer 1.7.18346
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Old 21st January 2020, 21:14   #58411  |  Link
clsid
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The screenshot shows "HDR: unknown properties", meaning it can't find the HDR metadata.

Use LAV Video decoder. Disable the internal video decoder and video processor in Potplayer.
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Old 22nd January 2020, 18:09   #58412  |  Link
SirMaster
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Here is a question I always wondered.

On the "trade quality for performance page":

https://i.postimg.cc/prp3BTy5/trade_...erformance.png

There is the option "scale chroma separately, if it saves performance".

Is this really lower quality? And why or in what way would it be lower quality when enabling the option? Why shouldn't we always have that option enabled?
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Old 22nd January 2020, 20:12   #58413  |  Link
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I think it's realeted to resizing. E. g. play a 2160p video on 1080p screen:
- normally chroma will be upscaled to 2160 and then both to 1080
- if it's enabled then there won't be chroma doubling
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Old 22nd January 2020, 20:37   #58414  |  Link
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Quote:
Originally Posted by SirMaster View Post
Is this really lower quality? And why or in what way would it be lower quality when enabling the option? Why shouldn't we always have that option enabled?
You do get different chroma... whether or not it is worse is more debatable. In testing it does seem better to handle chroma the same as luma but it is one of the least loss of quality options in trade quality for performance.
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Old 22nd January 2020, 21:45   #58415  |  Link
Wilmar
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Quote:
Originally Posted by clsid View Post
The screenshot shows "HDR: unknown properties", meaning it can't find the HDR metadata.

Use LAV Video decoder. Disable the internal video decoder and video processor in Potplayer.
Thank you for your answer. But I already use LAV Video decoder:
https://i.imgur.com/HZOJZpJ.png
https://i.imgur.com/1MmvsgE.png
My exported Potplayer settings are here.
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Old 23rd January 2020, 13:19   #58416  |  Link
IngramAU
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Having problems with repeated frames on 24.000fps content. I've nuked my drivers and reset Madvr to default still seeing the same issue (1060GTX.)

Please see attached images. I am not able to access 24.000hz fine tuning. 23.976hz I can.

I nuked my drivers and tried 24 again before fine tuning 23.976 incase it was causing issues didn't make a difference.
Attached Images
  
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Old 23rd January 2020, 14:28   #58417  |  Link
hannes69
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Quote:
Originally Posted by IngramAU View Post
Please see attached images. I am not able to access 24.000hz fine tuning. 23.976hz I can.
Attached images in this forum can take a long time until we can see them, so it would be better to upload them to an image hoster.
24.000Hz and 23.976Hz sometimes 'interfere' in certain setups/drivers.
A possible workaround could be to use multiples of these values (so you´ll have e.g. 23.976Hz and 48.000Hz or 47.952Hz and 24.000Hz or 72.000Hz...
Of course this depends on your display device´s capabilities, so your monitor/tv/beamer has to accept these refresh rates.
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Old 24th January 2020, 01:47   #58418  |  Link
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Quote:
Originally Posted by mclingo View Post
Hi,this is rough representation of what I am seeing with RX 5700 bug, beginning of bladerunner 2049

https://1drv.ms/u/s!AgvFafeelEBij75e...ll3yw?e=nM5M1Y
Use Madvr's tonemapping, The Tv's tonemapping is prolly poop anyway.

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Old 24th January 2020, 01:50   #58419  |  Link
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Quote:
Originally Posted by nsnhd View Post
I have now a full 10-bit path madVR-GPU(gtx 1060)-Display(4k monitor). Is there any disadvantage which I have to pay attention to ?
You need to test it with 10bit/8bit gradient test files. See which one is smoother.

But since 444 60hz only works in 8bit, and autoswitch 23/24hz is hit or miss depending on driver, I've stuck with 8bit.

I've not seen 10bit input produce noticably smoother gradient either because madvr's dithering is great.
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Old 24th January 2020, 01:57   #58420  |  Link
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Originally Posted by huhn View Post
the current in progress version killed 1080 by just tonemapping with a version to saying it will be released like that but still.

is this true ? we all have to buy 1080tis now ?
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