madVR - high quality video renderer (GPU assisted)

[nevcairiel]

Your TV probably uses some default metadata if none is send, which can look OK, but may not be perfect at all times.

[imhh11]

So can we expect an update for metadata passthrough and auto switching to HDR/SDR like it does with 3D/2D ?

[tingtong5]

Hi all,

I want to downscale HEVC 4K UHD content to 1080p with madvr, however the ony way to get acceptable frame render times is to set image downscaling to DXVA2. The madvr algoritmes all give me render times above 40 or 50 ms. My GPU is a GTX1070 so I assume it can do better then this.

My display is a JVC X5000 projector which has native 1080P panel resolution but accepts 4K input (e-shift technology).

Any idea on how to troubleshoot/fix this?

Ronald

[Budtz]

GTX 1060 should be fine. Update LAV + madvr to latest versions and reset the settings. Set LAV Video to use DXVA2 (copy-back) and tick the "(UHD) 4K" and "HEVC" checkboxes. In madvr settings go "devices">[your display]>"hdr" and set display nits until it fits your screen. Video is HEVC, right? If it doesn't look right post a sample. Maybe the file is broken or something.


thx I tried that but i couldnt get get it to be smoth. i got it to work with mpcbe in windowed mode. full screeen still dint work. yup its hevc

[huhn]

Hi all,

I want to downscale HEVC 4K UHD content to 1080p with madvr, however the ony way to get acceptable frame render times is to set image downscaling to DXVA2. The madvr algoritmes all give me render times above 40 or 50 ms. My GPU is a GTX1070 so I assume it can do better then this.

My display is a JVC X5000 projector which has native 1080P panel resolution but accepts 4K input (e-shift technology).

Any idea on how to troubleshoot/fix this?

Ronald
change the GPU power setting to adaptive in nvidia control panel.

[Cinemancave]

Hi all,

I want to downscale HEVC 4K UHD content to 1080p with madvr, however the ony way to get acceptable frame render times is to set image downscaling to DXVA2. The madvr algoritmes all give me render times above 40 or 50 ms. My GPU is a GTX1070 so I assume it can do better then this.

My display is a JVC X5000 projector which has native 1080P panel resolution but accepts 4K input (e-shift technology).

Any idea on how to troubleshoot/fix this?

Ronald

Why downscale when you can send the 4K content as is and make use of the JVC's 4K e-shift? You will get a perceptually higher resolution and better image quality that way.

[tingtong5]

change the GPU power setting to adaptive in nvidia control panel.
Thanks, I've done so now, did not make any difference though.

[tingtong5]

Why downscale when you can send the 4K content as is and make use of the JVC's 4K e-shift? You will get a perceptually higher resolution and better image quality that way.

Well the thing is that I disagree (perceptually not in theory ;-) ). I find 1080P output looking better then 4K, it make the image a bit noisy and jittery in my opinion. Besides that, every time a file won't play (not that this happens a lot), windows changes video settings back to 1080p each time which is very very annoying.

Anyway, I found a 4k -> 1080p downscaling configuration now that works:
chroma: superxbr 125 + superres 1
image downscaling: SSIM 1D 100%

Quite happy with the result :-)

[Oguignant]

Hi. Someone who has a gtx 1080 Ti? I have a gtx 1080 g1 gaming. I'm thinking of changing it. The render times are much better?

[kalston]

Hi. Someone who has a gtx 1080 Ti? I have a gtx 1080 g1 gaming. I'm thinking of changing it. The render times are much better?

Well it's like the Titan X, so about 30% faster than your 1080. Yes that translates to render times in madVR too when you use intensive stuff like NNEDI, NGU very high etc. Is 30% enough of an improvement for you considering the price? That's the question.

[Oguignant]

Well it's like the Titan X, so about 30% faster than your 1080. Yes that translates to render times in madVR too when you use intensive stuff like NNEDI, NGU very high etc. Is 30% enough of an improvement for you considering the price? That's the question.

My render times with NGU Sharp very high are 26-28-34ms (depending on the film). doing upscaling from 2k to 4k. I do not know what I would gain by lowering the times.

[Thunderbolt8]

My render times with NGU Sharp very high are 26-28-34ms (depending on the film). doing upscaling from 2k to 4k. I do not know what I would gain by lowering the times.render times depend on the content you are watching. if you want to watch something at 1080p with 60fps, afaik you need render times lower than 16.66ms then to avoid frame drops

[Oguignant]

render times depend on the content you are watching. if you want to watch something at 1080p with 60fps, afaik you need render times lower than 16.66ms then to avoid frame drops

Yes, but I always watch movies on 23 or 24hz. So less than 41ms is fine for me. And I never have dropped frames using gnu sharp very high or nnedi128.

[kalston]

Then you shouldn't waste money on a 1080 ti :)

[Budtz]

Reclock (any version) seems very broken with creators update. Opening files madvr reports clock deviation all over the place. From -2% to +9% completley regardles of reclock settings. Audio and video is stuttering. any1 else have problems?

[Q-the-STORM]

Reclock (any version) seems very broken with creators update. Opening files madvr reports clock deviation all over the place. From -2% to +9% completley regardles of reclock settings. Audio and video is stuttering. any1 else have problems?
I installed the update yesterday.

Just opened a 25fps file and activated slowdown to 23.976fps on a 23.976Hz display (23.97564Hz to be exact).

Clock deviation remains rock solid at -4.09591% reporting one frame drop every 40 minutes.

Don't see or hear any stuttering, also no drops reported.

[har3inger]

Hi all,

I want to downscale HEVC 4K UHD content to 1080p with madvr, however the ony way to get acceptable frame render times is to set image downscaling to DXVA2. The madvr algoritmes all give me render times above 40 or 50 ms. My GPU is a GTX1070 so I assume it can do better then this.

My display is a JVC X5000 projector which has native 1080P panel resolution but accepts 4K input (e-shift technology).

Any idea on how to troubleshoot/fix this?

Ronald

Go to trade quality/performance options, and check "scale chroma separately if it saves performance" since chroma is already at 1080p resolution. Alternatively, don't use anything harder than bicubic AR for chroma upscaling.

My laptop GPU can handle 4k (well, in film ratio and not a full 16:9 picture)->1080p scaling with SSIM1D if I don't use chroma scaling at all. Your 1070 should have absolutely no issues, even with something like SSIM2D with antibloat.

[nuhi]

Hi,
can someone please point me in the right direction of solving the attached issue with 3DLut?
The problem is when I use 3DLut generated by Calman and madvr, in madvr, I get these weird white edges.
Turning off the calibration solves it instantly.
Is the TV, madvr, meter (i1 Pro 2) or a Calman setting?

I don't know how to debug the actual 3DLut on anything other than madvr, so I'm asking as I wasted so many hours recalibrating.
At first I thought it's the black level setting (static vs measured), but last time it failed with it set to measured as well.

Thanks.

[XMonarchY]

Reclock (any version) seems very broken with creators update. Opening files madvr reports clock deviation all over the place. From -2% to +9% completley regardles of reclock settings. Audio and video is stuttering. any1 else have problems?

I had the same thing happen to me. I fixed it by using 24Hz instead of 23.970Hz - my TV can do both and each is a separate entry. I just left 1080p24 in madVR as the setting forthe lowest possible refresh rate.

[HillieSan]

Well the thing is that I disagree (perceptually not in theory ;-) ). I find 1080P output looking better then 4K, it make the image a bit noisy and jittery in my opinion. Besides that, every time a file won't play (not that this happens a lot), windows changes video settings back to 1080p each time which is very very annoying.

Anyway, I found a 4k -> 1080p downscaling configuration now that works:
chroma: superxbr 125 + superres 1
image downscaling: SSIM 1D 100%

Quite happy with the result :-)

I love the 4K output with 4K input.

[MrKaon]

Set MPC-HC with madVR and LAV filters according to this guide (http://juan2geek.com/media-player-classic-home-cinema-mpc-hc-and-madvr-setting/) . (Skiped the Haali part)
Finally I was been able to play 4K HDR on my 1080p monitor without washed up colours.
It will do it for me till I buy 4K HDR TV or monitor.
Thanks
:thanks:

[Magik Mark]

Reclock (any version) seems very broken with creators update. Opening files madvr reports clock deviation all over the place. From -2% to +9% completley regardles of reclock settings. Audio and video is stuttering. any1 else have problems?

Same Problem here!

[madshi]

It is hard to find a good image to test chroma upscaling, but with yours, the result are as follow between NNEDI3 and NGU AA (in order of personal preference) :

Nnedi16 < NGU-low < Nnedi32 < NGU-med < Nnedi64 < Nnedi128 < NGU-high < Nnedi256 < NGU-veryhigh

Quality wise, NGU-high and Nnedi256 are very close, but the differences in performance are huge ! So NGU AA wins for this particular case.
I think your personal preference is being kind to NNEDI3. Personally, I would rate NGU clearly better, when looking at the images you posted.

However, I have found NNEDI3 to be better than NGU AA in a lot of situations, for instance to reduce the chroma bleeding.
Do you have good samples that show difference in chroma bleeding? With differences as clear as the sample I provided?

Typo, I meant top. Every time I tried to enter something the scroll bar reset making me need to scroll back down again.
When something in the left side tree view changes, the settings dialog has to "refresh" the left side view, which is a complicated process which can modify the scroll bar position. I'm not sure if that's something which is easy to fix.

perhaps a built in replacement for ffdshow raw? Being able to add in Avisynth+/Vapoursynth filters into madVR directly would allow for huge video customization and allow also for proper handling of 10 bit content (ATM I have to disable it for any of this video type to avoid 8 bit output) and hopefully be faster and more stable as a result.
That's something that's planned for a future version.

It's normal when I play an HDR video with Windows10 and KODI or MPC-HC, the madvr show me this info:

matrix BT.2020
primaries BT.2020
HDR 4000 nits, BT.2020 -> DCI-P3

Why DCI-P3 and not BT.2020?
Yes. The "-> DCI-P3" is the metadata information that tells us how the studio monitor was calibrated when the movie was graded. It usually also tells us how large a gamut the movie is really using. Almost all movies today use DCI-P3. It's not a surprise because masters for movie theaters also use DCI-P3.

Did some more tests with NGU AA, I'm really convinced by it. I think it was slightly sharper then NEEDI3 and shows less aliasing also with filmed content.
Deringing + NGU AA + SR1 really seems to be a great choice in general for low-res content. NGU AA (low seems enough) also looks like the best choice for chroma with such sources, hardly has any weak point.
:)

i can use mpc-hc + madvr to see 3D iso files?
Yes. You need a recent LAV Video Filter version, Windows 8.1 or newer (Windows 7 won't work), a GPU which supports frame packed 3D output (most newer GPUs do), and a 3D display which accepts framed packed 3D content via HDMI 1.4+.

Humm the more I play around with NGU-Sharp the less I can bear sxbr's artificial look but I can't do without SR(non-AR LL) as I still very much enjoy its effect on motion-blur(in combination with FRC) but bloat becomes quite apparent, apparently 50% AB using non-AR SSIM 2D 100% saves the day but I can only afford this on SD and I'm pretty SOL on 720p........any chance for a bloat-free NGU+SR combo please? ^^
You'd have to ask Shiandow about it. He's the SR algo creator. His latest SSIM-SR algo doesn't bloat any less than the SR version used by madVR, maybe even more so.

Actually, any chance you could allow AB with other downscalers and not just SSIM please?
That's technically not possible. The SSIM AB only applies to the SSIM specific post processing, not to the SSIM downscaling part of the algo.

Is it possible to you NGU sharp vor Luma and NUG Alias for chroma?
Do you mean chroma upscaling (4:2:0 -> 4:4:4)? Or do you mean the chroma resolution "doubling" that is needed when you double luma with NGU Sharp? In the first case: Yes, of course. In the latter case: Nope, and I don't see a good reason for that.

Madshi, I mentioned some weeks ago that I use the zoom control at for 2.55 movies like Ben Hur to take away the black bars on my scope screen. I have to use, if there are big black bars : ...reduce bar size by 25%, this cuts off too much image. I asked if you could give us some smaller steps 10%, 15%, 20%, 25% which you thought was possible. Do you see this happening anytime in the near future?
I don't give out ETAs.

Also is there a way for the anamorphic stretch to automatically detect big black bars of scope films and do the "A" 4/3 stretch when it detects a scope film?
Sure, by using profiles.

I'v been using madvr for a while... i just want to thank madshi for doing a truly incredibly job with this. It would be impossible for me to watch videos on my pc without this renderer. Now, i can't watch movies anywhere else but my pc because of madvr, lav filters, etc.

My heartfelt thanks.
:)

Maybe you already know it, but the german magazine PC Games Hardware published an article about madVR in its new issue 05/17.
I don't like the article very much. In my opinion it spends too much text to explain some technical details which are not important, like chroma upscaling, and doesn't highlight or describe the strengths of madVR enough. It also doesn't mention NGU at all. But maybe it can still increase the popularity of madVR a bit.
Oh cool, didn't know that, thanks for letting me know! Will have to get that magazine.

It seems that the combination Nvidia-card, MadVR and 3D is totally broken, for me at least, at the moment. Both under Win 7 and Win 10. If I do a fresh driver-installation, 2D works fine. As soon as I start enabling 3D, MPC starts crashing. Especially if I enable 3D playback for 2D movies in MadVR config. Under Windows 10, I thereafter cannot play anything, 2D or 3D. Under windows 7, I can go back to playing 2D just fine. I am really at a loss here :S
Windows 7 itself doesn't support frame packed 3D, so I'm not sure what kind of problem you have there. You can't play 3D movies in Windows 7 with madVR.

NVidia drivers are somewhat weird. If you have 3D output activated and then play a 2D movie, the driver actually tries to analyze the video and convert it from 2D to 3D. And it kinda works, but only for a bit and it crashes very often. You should keep 3D disabled with NVidia drivers, except when you want to watch a 3D movie.

Has anyone with the latest Windows Creator's Update been having dropped and repeated frames issues? I don't know whether its madVR or LAV Filter or ReClock issue, which for some reason uses CINEMA adaptation 24p on 23Hp content...
Reclock (any version) seems very broken with creators update. Opening files madvr reports clock deviation all over the place. From -2% to +9% completley regardles of reclock settings. Audio and video is stuttering. any1 else have problems?
I keep and keep on telling you guys that Windows 8.1 x64 is the best media player OS. Why does nobody listen to me?

wish HDR would work. Especially now with creator's update and nvidia supporting it, for the first time I saw the "An HDR Video is playing" on my samsung from my pc. Just wish I could get it to work with madvr.
Hi to all. Finally Windows 10 Creators Update is out and the new nVidia Driver with WDDM 2.2 are out.
The new driver are 381.65.
But with Kodi + madvr settings for passthrough the HDR metadata don't work.
My tv Samsung KS8000 don't change into HDR mode.

Maybe a new version of madvr can fix this?
So can we expect an update for metadata passthrough and auto switching to HDR/SDR like it does with 3D/2D ?
Auto HDR activation is planned for a future version. The APIs are available now from both NVidia and Microsoft. The NVidia API is "better" because it will (probably) work for all OSs from Windows 7 to Windows 10 (I think), while the Microsoft API will only work for Windows 10. I plan to support both APIs, but it will take some time to implement this feature.

What level of NNEDI3 neurons does NGU-AA roughly corresponds to in terms of image quality? For instance, NGU-AA (very high) ~= NNEDI3 256? NGU-AA (high) ~= NNEDI3 128? etc
There's no direct correspondence. In some images even NGU AA Low looks better than NNEDI3 256. In other cases you need NGU AA Very High to compete with NNEDI3 256.

I tried running a few 4k hdr files. I have a Haswell 4 core cpu at 4.3ghz but it just maxes out the cpu and I get stutters. Is there any way to run this stuff or do I need a kaby lake. I use lav filters and use cuvid with the 4k box enabled but I don’t know if that helps with these files. is it couse my 1060gtx cant decode it?
Have you configured LAV Video Decoder to do hardware decoding? Or your CPU maxes out, it seems you're still using software decoding.

Also, I have the default hdr settings but faces seem to be very red. Colors are off somehow with hdr it seems. I have a non hdr tv but shouldn’t madvr convert it?
Is that with all movies? Is your display properly calibrated? Please double check your "device" setup in the madVR settings dialog to make sure all settings are correct (e.g. "the display is already calibrated to [...]" etc).

I want to downscale HEVC 4K UHD content to 1080p with madvr, however the ony way to get acceptable frame render times is to set image downscaling to DXVA2. The madvr algoritmes all give me render times above 40 or 50 ms. My GPU is a GTX1070 so I assume it can do better then this.
The issue is likely caused by chroma upscaling. Please use a reasonable chroma upscaling algorithm.

can someone please point me in the right direction of solving the attached issue with 3DLut?
The problem is when I use 3DLut generated by Calman and madvr, in madvr, I get these weird white edges.
Turning off the calibration solves it instantly.
Is the TV, madvr, meter (i1 Pro 2) or a Calman setting?
I'm not really a calibration expert. I'd kindly suggest that you ask for help in the Calman support forum. Those guys know everything there is to know about calibration and are much more likely to be able to help you out.

I found an issue when I activate deringing filter. It adds a lot of aliasing sometimes.

Here you can find a good example :

https://www.mediafire.com/?f2gmf1f2setwc12
Thanks, I'll put this on my to do list, but it might take a while until I get to this.

[BluesFanUK]

Anyone got a 1080ti? What kind of settings are you getting? Can you bump anything up for 4K@60?

[nevcairiel]

Auto HDR activation is planned for a future version. The APIs are available now from both NVidia and Microsoft. The NVidia API is "better" because it will (probably) work for all OSs from Windows 7 to Windows 10 (I think), while the Microsoft API will only work for Windows 10. I plan to support both APIs, but it will take some time to implement this feature.

Sounds good to support both, maybe I don't need to move my HTPC to 10 then afterall.
Generally happy to know proper HDR reproduction on a HTPC with a HDR TV will be possible.

Now just need to figure out how to actually get unmolested HDR content onto the PC - oh, and buy a HDR TV sometime!

[madshi]

Now just need to figure out how to actually get unmolested HDR content onto the PC
Yes, that's the key problem. And it's also why I'm not sure where the rush is. Many users seem to be concerned about HDR already, but we don't really have good HDR content yet. So IMHO it's not all that urgent.

oh, and buy a HDR TV sometime!
Just got myself a previous generation Sony TV with HDR + 3D support, and with a non-flickering backlight (no PWM). This combination of features is really hard to find, because older generation TVs usually have no HDR support, and newer generation TVs usually have no 3D support, and most TV manufacturers don't see a problem with flickering backlights...

[TheShadowRunner]

Hey madshi, please don't forget the test build! ^^;

[madshi]

Hey madshi, please don't forget the test build! ^^;
It's on my to do list, but I don't have much time atm.

[nevcairiel]

Just got myself a previous generation Sony TV with HDR + 3D support, and with a non-flickering backlight (no PWM). This combination of features is really hard to find, because older generation TVs usually have no HDR support, and newer generation TVs usually have no 3D support, and most TV manufacturers don't see a problem with flickering backlights...

I don't really need (or want) 3D, so that makes it easier. Ever since LAV+madVR could do 3D I have watched like 2 movies like that on my old 1080p Sony 3D TV, mostly just to make sure it works properly through an entire movie.
And yeah, flickering can be really bad, although not every PWM implementation is excessively bad, but I would rather avoid it myself as well.

But the lack of content is why I haven't purchased one yet. They get better every year afterall (or last years cheaper, at the least).

[madshi]

madVR v0.91.8 released

http://madshi.net/madVR.zip

* NGU Sharp now targets middle ground between gamma and linear light
* added NGU Standard + Soft algorithms, with direct quadrupling support
* added true "very high" quality mode for direct quadrupling
* modified "add grain" to produce similar output when using direct quad
* fixed: Y416 input was handled incorrectly
No bug fixes, just a "quick" algorithm update.

In older versions, NGU Sharp was optimized for movies that were downscaled using gamma light. A studio insider told me that some studios use gamma light and some linear light for downscaling. So starting with v0.91.8, all NGU algorithms now try to hit middle ground between linear and gamma light. Which means we won't ever get "perfect" results, but with the old version the interpolation error was sometimes big and sometimes non-existant. With the new version there will always be an error, but it will always be relatively small.

In all older madVR versions, "direct quadrupling" was identical for "low" and "medium" settings. So there were really only 3 different performance vs quality settings. I've now rectified that: The previous low+medium settings are now low. The previous high setting is now medium. And the previous very high settings is now high. Finally, I added a true (and slower) new "very high" setting. This is all for direct quadrupling. Doubling is unchanged.

Now I need your FEEDBACK, once again:

1) Do you like the new "NGU Standard" and "NGU Soft" variants? Personally, I like "NGU Standard" a lot. But I think "NGU Soft" is too soft to be useful, and I'd like to remove it again. But since I spent a lot of time creating it, I thought I'd let you test it, at least.

2) Does "NGU Standard" work better for (non-aliased) low quality content now? Or do we still have to use NGU AA for that? Ideally I hope that we can now use "NGU Sharp" for high quality soures, "NGU Standard" for low quality (but aliasing free) sources, and "NGU AntiAlias" only for aliased sources. Is that reasonable? Or is "NGU AA" still the best option for any low quality sources, aliasing free or not?

3) I want to remove the "Soften Edges" option, because "NGU Standard" was made to replace it. Any objections?

4) With all the changes in this build, I feel that "double twice" is no longer needed. "direct quadrupling" should now always be identical or superior in quality and much faster. So I would like to remove "double twice". Any objections?

[XMonarchY]

Thank you madshi! Are you running Windows 10? Have you had a chance to see how Creator's Update performs with madVR + ReClock?

[e-t172]

Regarding the upcoming HDR metadata support… will we need to watch out for the HDR format "war" when choosing a display for playing HDR content from a PC with madVR? From what I can tell there is HDR10, Dolby Vision and HLG. Which standards do the nVidia/Microsoft APIs support? Will we need to be careful when shopping for TVs? Does it even matter?

[Neo-XP]

Wow, NGU-high is now better than is was in v0.91.1 (NGU-med) :eek:

Now I regret even more not being able to use NGU-med for chroma doubling...

[nevcairiel]

Regarding the upcoming HDR metadata support… will we need to watch out for the HDR format "war" when choosing a display for playing HDR content from a PC with madVR? From what I can tell there is HDR10, Dolby Vision and HLG. Which standards do the nVidia/Microsoft APIs support? Will we need to be careful when shopping for TVs? Does it even matter?

Any recent half-decent TV should support all of those.
In any case, Dolby Vision is not what PCs send, right now its probably HDR10, and may also be HLG in the future.

[Cinemancave]

Windows 7 itself doesn't support frame packed 3D, so I'm not sure what kind of problem you have there. You can't play 3D movies in Windows 7 with madVR.

NVidia drivers are somewhat weird. If you have 3D output activated and then play a 2D movie, the driver actually tries to analyze the video and convert it from 2D to 3D. And it kinda works, but only for a bit and it crashes very often. You should keep 3D disabled with NVidia drivers, except when you want to watch a 3D movie.

I want to calibrate 3D, so that's why I'm interested in trying to play 2D grey scale patterns while the display is kept in 3D mode. I can understand that this is outside the scope of MadVR and a driver issue then (however, I used to be able to do this without any issues some months ago). I guess I'm going to have to try and create some 3D patterns instead.

Also, when you start working on implementing the automatic HDR-mode, please consider making it an option to remove the HDR-flag (so basically what MadVR does today). Owners of JVC projectors want the HDR-data to be stripped in order to get more control over the projector settings. I know this is the opposite of what most users desire, but having this option would be very welcome by the JVC minority. Thanks for all your hard work :thanks:

[MariaX9]

What exactly counts as High Quality? 480p and above, or does 480p count as low Quality?

[cork_OS]

madshi, what do you think about NGU quadrupling for chroma?
What exactly counts as High Quality? 480p and above, or does 480p count as low Quality?
Encoding artifacts or blurry source count as low quality whatever resolution.

[Ver Greeneyes]

madVR v0.91.8 released

1) NGU Standard seems like a good match for the sharpness of NGU AA, but

2) I really like the Anti-Aliasing capabilities of NGU AA, it makes a very visible difference in some cases for the material I watch (mostly livestreams and youtube videos, which are all fairly heavily compressed). I think a certain level of compression just inherently causes aliasing, and NGU AA does wonders for it (in certain cases), where NGU Standard just looks softer than NGU Sharp.

If anything, I'd kind of like a sharper version of NGU AA if that's possible. I like the crisp edges of NGU Sharp, but unfortunately for the material I watch the crispest edges are the compression artifacts :P

By the way, do you think you'll be able to make direct quadrupling work for NGU AA?

[ryrynz]

I asked about a sharper version of AA but it's unlikely to happen. Just add a touch of AS and you're sorted.

[nuhi]

I'm not really a calibration expert. I'd kindly suggest that you ask for help in the Calman support forum. Those guys know everything there is to know about calibration and are much more likely to be able to help you out.
Thanks for your reply, which encouraged me to do more tests.
It was the Sliding Power gamma during calibration that was doing it, now changed the gamma function.
Not sure of it's a bug on Calman's side, still waiting on their reply.

[tingtong5]

I finally managed to solve my video performance issues :-)

1. By disabling zoom reduce ringing artifacts in MadVR -> processing -> artifact removal.
2. By disabling crispen edges in MadVR -> processing -> image enhancements and enabling it instead in upscaling refinement settings only.
3. By disabling zoom small black bars away in MadVR -> processing -> zoom control.

Making these 3 changes results in significant performance boost whic translates in much lower average frame rendering times :-)

[tingtong5]

Go to trade quality/performance options, and check "scale chroma separately if it saves performance" since chroma is already at 1080p resolution. Alternatively, don't use anything harder than bicubic AR for chroma upscaling.

My laptop GPU can handle 4k (well, in film ratio and not a full 16:9 picture)->1080p scaling with SSIM1D if I don't use chroma scaling at all. Your 1070 should have absolutely no issues, even with something like SSIM2D with antibloat.
Thanks a lot for this! :-)

[Patrik G]

Question:
When Madvr converts UHD HDR to SDR does it also convert colors from bt2020 to bt709?

also will there be a setting for adjusting the PQ gamma with HDR material on SDR tvs?

as it is now to get down the APL with UHD HDR i need to select much higher peakbrightness than the tv has.
and with that i think highlights dims down to much.

what i want is to have the highest possible brightness for highlights but to tone down the rest of the image to where it should be
around 100nits APL.
you cant do that now.

you can with the Samsung K8500 UHD player with adjustment of Brightness and Contrast in picture mode user menu
with that you can adjust contrast to get max details in bright areas without clipping with UHD HDR material.

i wish madvr had the same setting

[Neo-XP]

1) Do you like the new "NGU Standard" and "NGU Soft" variants? Personally, I like "NGU Standard" a lot. But I think "NGU Soft" is too soft to be useful, and I'd like to remove it again. But since I spent a lot of time creating it, I thought I'd let you test it, at least.

2) Does "NGU Standard" work better for (non-aliased) low quality content now? Or do we still have to use NGU AA for that? Ideally I hope that we can now use "NGU Sharp" for high quality soures, "NGU Standard" for low quality (but aliasing free) sources, and "NGU AntiAlias" only for aliased sources. Is that reasonable? Or is "NGU AA" still the best option for any low quality sources, aliasing free or not?

3) I want to remove the "Soften Edges" option, because "NGU Standard" was made to replace it. Any objections?

4) With all the changes in this build, I feel that "double twice" is no longer needed. "direct quadrupling" should now always be identical or superior in quality and much faster. So I would like to remove "double twice". Any objections?

1) I do not like "NGU Standard" for chroma upscaling (too sharp), and "NGU Sharp" is awful for it (really too sharp and ugly). "NGU Soft" is alright, but "NGU AntiAlias" is better and of course NNEDI is a direct competitor.
Maybe "NGU AntiAlias" could be better in all cases than NNEDI if it was a little more sharp and produced/accentuated a bit less artifacts. But for now, each one have pros and cons...
Do you plan to keep all the NGU variants for chroma upscaling ?

For luma doubling though they are all good, but if one have to go, it should be "NGU Soft" because "NGU AntiAlias" could be used instead if someone wants a clean result without the sharpness of the classic NGU. "NGU Soft" is too soft.

2) "NGU Standard" removes dark halos, "NGU AntiAlias" does not. The edges are cleaner with "NGU AntiAlias", because "NGU Standard" seems to produces artifacts on them (probably while removing the halos). Is it not possible to have them both combined in one "NGU Standard AA" algo ? Also, I noticed that "NGU AntiAlias" shifted the image a little, is that normal ?

3) Yes, it is useful at 1 or 2 to soften a bit the razor-sharp edges of "NGU Sharp", even more when using it with "direct quadrupling".

4) No, "double twice" produce a very superficial result so it can go IMO.

Anyway, I'm very happy with this version now. Just :thanks: madshi.

[Magik Mark]

I had the same thing happen to me. I fixed it by using 24Hz instead of 23.970Hz - my TV can do both and each is a separate entry. I just left 1080p24 in madVR as the setting forthe lowest possible refresh rate.

Thanks for the tip. However, I'm still getting 1 frame drop every 33min. Originally it's from every 33 seconds

[qjb2016]

how use "process HDR content by using an external 3DLUT" ?

[ryrynz]

I noticed that "NGU AntiAlias" shifted the image a little, is that normal ?


Yes the half pixel offset is normal, NGU AA works similar to how NNEDI3 does.

1) I do not like "NGU Standard" for chroma upscaling (too sharp), and "NGU Sharp" is awful for it (really too sharp and ugly). "NGU Soft" is alright, but "NGU AntiAlias" is better and of course NNEDI is a direct competitor.
Maybe "NGU AntiAlias" could be better in all cases than NNEDI if it was a little more sharp and produced/accentuated a bit less artifacts.

I like NGU AA for chroma a lot. Being able to sharpen chroma aside from SuperRes would be nice, can AS be adapted here?

[qjb2016]

how use "process HDR content by using an external 3DLUT" ?

[qjb2016]

:readfaq:
how use "process HDR content by using an external 3DLUT" ?
how build the "external 3DLUT"?

[qjb2016]

how use "process HDR content by using an external 3DLUT" ?
how build the "external 3DLUT"?