madVR - high quality video renderer (GPU assisted)

[Asmodian]

I prefer smooth motion at 4K 60 Hz over 1080p 120Hz on my OLED55C7P. NGU Sharp very high is usually quite a bit better than whatever the TV uses to fill the screen when receiving a 1080p signal, and I can switch to NGU AA or similar when Sharp is too sharp. However, I don't watch much mixed content.

[djc5166]

Originally Posted by Asmodian

I prefer smooth motion at 4K 60 Hz over 1080p 120Hz on my OLED55C7P. NGU Sharp very high is usually quite a bit better than whatever the TV uses to fill the screen when receiving a 1080p signal, and I can switch to NGU AA or similar when Sharp is too sharp. However, I don't watch much mixed content.

Thanks, I'll take a look at these settings. I have a 65B7. I guess I was under the impression to stay away from these kind of blending features, but maybe the smoothing stuff just kind of sucks on the TVs themselves?

Maybe a dumb question, is there a way for madvr to check for VFR content in the profile scripts? Does mkv even have a flag for it? Is there anyway to check for mixed content files short of running into the frame rate as you play it?

[Asmodian]

Not that I know of.

[huhn]

smooth motion can do this too and you don't have to use the garbage TV scaler.

[takenori]

does custom modes optimize option disabled now?
i tried rebooting and unplugging after clicking the test mode, but optimize option still greyed out. (also, after clicking test mode, it goes right to "unknown timing details" without "not measured yet")
and i cant use reset gpu. last time i use that, my pc blacked out, had to enter into safe mode and reinstall gpu driver

[Sunset1982]

too bad that the 2018 OLEDs don't have HDMI 2.1!

would be exciting to see what smooth motion in 4K@120hz would look like...

[FDisk80]

Originally Posted by takenori

does custom modes optimize option disabled now?
i tried rebooting and unplugging after clicking the test mode, but optimize option still greyed out. (also, after clicking test mode, it goes right to "unknown timing details" without "not measured yet")
and i cant use reset gpu. last time i use that, my pc blacked out, had to enter into safe mode and reinstall gpu driver

If you are using NVIDIA card they fucked up the latest driver. Not possible to create custom resolutions or refresh rates. Go back to the previous one. http://forum.doom9.org/showthread.ph...89#post1835189

[Manni]

Originally Posted by FDisk80

If you are using NVIDIA card they fucked up the latest driver. Not possible to create custom resolutions or refresh rates. Go back to the previous one. http://forum.doom9.org/showthread.ph...89#post1835189

Not for everyone. I'm using a custom refresh rate (created by MadVR, not by the nVidia CP) for 4K23 and it works fine, no frame drop/repeat for 1-2 hours.

[Warner306]

Originally Posted by djc5166

Just curious to see what other people are using, I assume letting madvr upscale to 4k itself probably has better PQ than what the TV would do, but I don't know much about the scaling engine in these OLED TVs. Some places say it's good, others say it's terrible.

I still think matching refresh rates is the "correct" way to do it. Smooth motion is completely an acquired taste. I don't like it. Others do.

And always use madVR's upscaling if possible. Do your think your OLED has the processing horsepower of a gaming GPU? That's what madVR's scaling algorithms are all about.

[huhn]

it's unlikely that anyone will spot the difference at 120 hz.
if it is working correctly it's not visible.

and VFR is not really possible to frame match in any case.

[Warner306]

Originally Posted by huhn

it's unlikely that anyone will spot the difference at 120 hz.
if it is working correctly it's not visible.

and VFR is not really possible to frame match in any case.

Yes, I missed the variable frame rate part.

[huhn]

in a perfect world with working TV and no VFR content SM would be only useful for PC screens.

just as a small reminder if SM is more smooth than frame matching you simply have one of the countless TVs that can't frame rate match to 24p and with that it is unable to present the creators intend.

[takenori]

Originally Posted by FDisk80

If you are using NVIDIA card they fucked up the latest driver. Not possible to create custom resolutions or refresh rates. Go back to the previous one. http://forum.doom9.org/showthread.ph...89#post1835189

Originally Posted by Manni

Not for everyone. I'm using a custom refresh rate (created by MadVR, not by the nVidia CP) for 4K23 and it works fine, no frame drop/repeat for 1-2 hours.

thanks for the input.
now after disabling DSR, they works, even got a perfectly optimized status for 23. i use latest whql driver (created with madvr too, not nvidia cp)

though i must add another question, if i change my audio output (from direct audio jack from pc to monitor's jack) is it normal that the frame drops/repeat got worst and i need to make another optimization again?

[huhn]

depends.

if the monitor takes the audio signal from HDMI yes it has a different clock.

[djc5166]

Originally Posted by huhn

it's unlikely that anyone will spot the difference at 120 hz.
if it is working correctly it's not visible.

and VFR is not really possible to frame match in any case.

Originally Posted by huhn

in a perfect world with working TV and no VFR content SM would be only useful for PC screens.

just as a small reminder if SM is more smooth than frame matching you simply have one of the countless TVs that can't frame rate match to 24p and with that it is unable to present the creators intend.

With 4k@60hz, SM seems to work very well with everything I've thrown at it. I don't think I see any noticeable blurring. I don't think I can really notice a difference in smoothness vs frame matching, and now the resolution/refresh doesn't need to switch back and forth for every video.

1080p@120hz seemed to be matching perfectly for my VFR stuff. 23.976 an 29.97 both fit into this evenly, or am I thinking about this wrong? I actually had to set it to 119hz in madvr (for 119.88) to get it perfect, i guess similar to setting 23hz for 23.976.

But madVR upscaling everything to 4k seems to be a lot better PQ than letting the TV do it, so I think I'll stick with SM until 4k@120hz is a thing

[Graeme Gill]

Originally Posted by e-t172

I don't know about web browsers, but software like Photoshop seems to be able to apply an ICC profile with no perceivable delay.

There's quite a difference between concatenating the pre-built ICC A2B and B2A tables and then crunching the pixels with the resulting link, vs. creating the B2A table by inverting the A2B with any accuracy and/or computing a sophisticate gamut mapping.

And it would be pretty ludicrous to say that professional image editing software like Photoshop do this in subpar quality. In fact people using Photoshop probably care even more about color accuracy than videophiles.

Yes and no. Photoshop takes a great deal of care in applying ICC profiles, but has nothing to do with the accuracy of the profiles themselves. It just uses the ICC tables. For instance, it doesn't try and improve on the accuracy of the A2B and B2A tables re-computing B2A lookup or computing profile pair specific gamut mappings in the manner than collink is capable of.

As for "3DLUTs are not just slow for fun", well, it might be that programs like ArgyllCMS's collink command are slow because there is no perceived need to make them fast: people use it offline and very infrequently, no one cares a great deal about how long it takes.

Oh boy - I think if I added it all up, I've spent years of my time working on the performance of elements that make up collink, from profile inversion to gamut mapping. There's no doubt that there are faster ways of doing less complex gamut mapping or lower accuracy profile inversion, and of course there are almost certainly speedups possible to my current code, but its not slow for want of caring nor effort.

I suspect it would be possible to do it much faster with little loss in quality if one were to specifically optimize for that. (Does anyone know how long LittleCMS takes to generate a transform?)

Go right ahead - optimize away!

Note that collink will link profiles in simple mode in comparably short times to lcms and Photoshop though.

[chros]

Originally Posted by Graeme Gill

... I think if I added it all up, I've spent years of my time working ...

It seems to be a good time to express our gratitude for your work as well, so thank You!

[heiseikiseki]

Hello everyone , I found a very strange thing on MADVR with windows 10.
Today I update my windows 10 which is on the latest stable version (creators update) into the insider on slow ring which the version is 17115. (will be spring creator update release in this april)
Madvr works no problem, but the rendering time reduces a lot on my GTX1060!! I can not believe it ! 720p=>1440p on luma GPU sharp very high and chroma ngu aa medium only 6ms!!

https://imgur.com/a/1cgjc

I think it is at least two times faster on my GTX1060. How is this possible! is it a bug or the new windows 10 do some magic?

[sneaker_ger]

Higher power state?

[huhn]

try advanced randersteps.
my 1060 needs about 18 ms at 1760 mhz for 720 -> 1440edit: using NGU sharp very high, doubling chroma NGU mid.