madVR - high quality video renderer (GPU assisted)

[AngelGraves13]

Since we're all talking about our preferred Chroma upscaler, I'd like to throw in my pick and state why I prefer it over other scalers.

NGU Anti-alias High Chroma

Why? It's not too sharp, and also smoothes the edges of the 4:2:0 chroma, which we all know can look pretty terrible, especially at lower resolutions like 480p. I find it produces the clearest, most defined, and smooth chroma in madvr.

Don't get too stuck up on sharpness. Jinc should be regarded as the overall best upscaler and downscaler in madvr. It's also a great chroma scaler, but if you have some extra headroom, go for NGU AA High. Very High looks really nice, but it's just too demanding even for 1080 Ti.

[Magik Mark]

Can somebody point me to the right link if this has been answered. I'm having problems searching this:

1. It seems I can't get madvr to generate optimized setting for custom mode. I have played numerous videos already

2. Sometimes I get Black Screen. Hitting pause then unpause so far solves this. is there a way to prevent this?

[tony359]

Originally Posted by Dorohedoro

it will help you get rid of that ugly grain of some old movies (I dont don't like grain)

Ouch! Grain is part of the film! You're making it looking like a TV show! Nolan would disagree with you

[70MM]

I dont mind the grain in older films, 35MM has grain, I dont want to change that!

[Dorohedoro]

Originally Posted by tony359

Ouch! Grain is part of the film! You're making it looking like a TV show! Nolan would disagree with you

I agree with you (not with the Nolan part, his lastest movies are cristal clean in the theater), but I simply don't like a grainy image, and my projector make look grainy movies even worse, that's why I like to use denoise filters.

[ryrynz]

Originally Posted by AngelGraves13

Don't get too stuck up on sharpness. Jinc should be regarded as the overall best upscaler and downscaler in madvr. It's also a great chroma scaler, but if you have some extra headroom, go for NGU AA High. Very High looks really nice, but it's just too demanding even for 1080 Ti.

Agreed. But high gets you 95% of the way there so it's hard to justify very high unless you got plenty to burn. On my 960 I'd rather not. I wouldn't notice it anyway..
And yes Jinc is very nice for luma, NGU AA bests it with chroma though, even the low setting IMO. Jinc loves to add nice dark haloing, NGU AA is very clean by comparison.

[SamuriHL]

Originally Posted by ryrynz

Performance wise it's a pretty good option if you can't reach NGU AA medium. At that point though I might consider one of the other algos instead, I haven't done any direct comparisons between low and the others but I'm no fan of the sharper algos that's for sure, but it really does come down to your display.. I believe owners of Projectors like Madshi tend to prefer the sharper ones.

I tend to stay away from the sharper ones, as well. I'm on a Panny plasma and haven't seen any need for increased sharpness. I will say I absolutely prefer NGU AA medium. If you've got the horsepower under the hood, it's very much worth it IMO.

[Thunderbolt8]

Originally Posted by AngelGraves13

Jinc should be regarded as the overall best upscaler and downscaler in madvr. It's also a great chroma scaler, but if you have some extra headroom, go for NGU AA High. Very High looks really nice, but it's just too demanding even for 1080 Ti.

even a Geforce 1080 Ti is too slow for NGU very high chroma upsampling? just for that alone, without any additional upscaling of the image?

[kalston]

Originally Posted by Thunderbolt8

even a Geforce 1080 Ti is too slow for NGU very high chroma upsampling? just for that alone, without any additional upscaling of the image?

NGU chroma very high is no problem on a 1080 ti for the most part. But I think he just meant that it's not worth the performance cost [assuming it forces you to back down on luma settings and such] and I agree. It's expensive and I can't see the difference myself but I can usually afford it so I use it

[Asmodian]

Originally Posted by Thunderbolt8

even a Geforce 1080 Ti is too slow for NGU very high chroma upsampling? just for that alone, without any additional upscaling of the image?

It isn't about GPU performance at all. I have plenty of power, I could use NGU AA very high for both chroma upscaling and luma doubling when upscaling 1080p30 to 4K (note: chroma is doubled with NGU AA medium when luma doubling is set to very high).

Using NGU AA very high for chroma upscaling might even provide worse quality. Some users here have reported that, only for chroma upscaling, NGU AA very high actually results in worse quality than NGU AA high and during personal testing I have never found a situation where very high was visibly better.

But really, it simply isn't worth the large increase in heat/power for no or negative changes in quality.

[aufkrawall]

Originally Posted by ryrynz

That scene doesn't show a huge amount of difference.

It did show a huge difference between luma-guided chroma scalers vs. traditional chroma scalers and NGU didn't exist at that time.

[JarrettH]

Anyone have screenshots to show these chroma differences? It's odd talking about it. Something like sxbr, ngu aa medium / high, ngu standard medium / high, ngu sharp medium / high

[aufkrawall]

I don't have the sample. Since bilateral shined there, I'd assume that sharper algorithms like NGU Sharp would noticeably look better as well. Can't prove/disprove that without the sample, unfortunately.

[AngelGraves13]

Originally Posted by Thunderbolt8

even a Geforce 1080 Ti is too slow for NGU very high chroma upsampling? just for that alone, without any additional upscaling of the image?

Render times are too high. It sometimes spikes into 40-70 ms, which throws off sync. If MAX stats goes over 41ms, then I don't use the setting as audio sync will be affected.

I have all trade quality for performance settings turned off.

[ryrynz]

Originally Posted by aufkrawall

It did show a huge difference between luma-guided chroma scalers vs. traditional chroma scalers

Anything difference looks huge if you zoom in enough.

I'll have a comparison screenshot package up showing all the chroma scalers available within madVR on the particular scene up later today.

[kalston]

Originally Posted by AngelGraves13

Render times are too high. It sometimes spikes into 40-70 ms, which throws off sync. If MAX stats goes over 41ms, then I don't use the setting as audio sync will be affected.

I have all trade quality for performance settings turned off.

The buffers should prevent any sync issue from happening though. Certainly works that way for me. I don't really pay attention to max stats. I just look at average & queues. 24fps content is pretty damn easy for a 1080 ti.

(and I don't use any trade quality for performance setting either)

[huhn]

Originally Posted by AngelGraves13

Render times are too high. It sometimes spikes into 40-70 ms, which throws off sync. If MAX stats goes over 41ms, then I don't use the setting as audio sync will be affected.

I have all trade quality for performance settings turned off.

that's not how it works as long as no frame is dropped/repeated sync is not affected at all. max rendering times over the frame interval can be totally save.

[dvd1]

on the 576 of low quality at low bitrates. what should I use for a picture more and deeper nidita?

[huhn]

try ngu AA and debanding high low quality is a lost case anyway.

[JarrettH]

Originally Posted by ryrynz

Anything difference looks huge if you zoom in enough.

It's funny how the most devoted discussions are usually for the most subjective things. I mean luma scaling isn't discussed too much because...