madVR - high quality video renderer (GPU assisted)

[Oguignant]

Originally Posted by Asmodian

Haha, people keep asking if dithering should be disabled even after we repeatedly tell them there is never a reason to disable dithering. Apparently we need to be quite firm.

But I know, it is just a question, and please keep asking them!

Jaja I did know. But you can not deny that the information I read from LG raised the question.

[ryrynz]

Could some of you guys please stop quoting entire posts when replying? It's easy to just cut the bits you need. Half the damn feed is quoted stuff nobody is reading. There's more quote in the post than reply half the time.

[Asmodian]

I do try to do that but I am on mobile now and am being a bit lazy.

[Oguignant]

I know that this topic does not belong to this forum, but I ask the same. Does anyone have the color scale (Or whatever their name is) to calibrate the tv to bt.2020? Or some page from where to download it?

[huhn]

without a colorimter and the knowhow you can't calibrated what so ever.

if you think there is a screen with real bt 2020 you are missing the knowhow.

[Asmodian]

Originally Posted by Oguignant

I know that this topic does not belong to this forum, but I ask the same. Does anyone have the color scale (Or whatever their name is) to calibrate the tv to bt.2020? Or some page from where to download it?

I assume you mean the BT.2020 gamma curve? That cannot be done correctly without a meter either but on an OLED, with their very low black levels, BT.2020 is basically pure power 2.4. BT.2020 is a theoretical color space that would require new (magic?) laser technology to actually implement as a display.

After owning several meters and comparing to test pattern calibration methods I have come to the conclusion that a spectrometer is necessary to actually get a decent calibration. This is especially true with novel or new display technologies. Colorimeters don't work very well with every display having different LED backlights, even OLEDs aren't identical model to model. Test patterns are basically useless, or worse, in my experience, unless the display is completely wrong. Test patterns can only optimize one aspect at a time so you end up making three things worse to improve one aspect a bit.

Your TV is close to the DCI-P3 primaries, so if you want to look for a test pattern for that you might be able to do something good but you could also make it worse then the default factory calibration.

[Oguignant]

Originally Posted by Asmodian

I assume you mean the BT.2020 gamma curve? That cannot be done correctly without a meter either but on an OLED, with their very low black levels, BT.2020 is basically pure power 2.4. BT.2020 is a theoretical color space that would require new (magic?) laser technology to actually implement as a display.

Your TV is close to the DCI-P3 primaries, so if you want to look for a test pattern for that you might be able to do something good but you could also make it worse then the default factory calibration.

colors the TV oled can display: Dci-p3 90% and bt.2020 70%

Test pattern I use I expressed wrong. I use the test pattern to see if it is calibrated correctly. A colorimetro or spectrometer is very difficult to obtain in my country, and to buy it would cost a fortune!

So, basically you recommend use factory precalibration and just change gamma 2.4 on tv and bt.2020/pure curve 2.4 in madvr configuration?

Asmodian: Today you have answered all my questions They're going to think you work for me or something. Je thks!

[Asmodian]

Originally Posted by Oguignant

So, basically you recommend use factory precalibration and just change gamma 2.4 on tv and bt.2020/pure curve 2.4 in madvr configuration?

Exactly, even gamma test patterns, which work the best, tend to only approximately match meter results. None can tell you with any accuracy how good a calibration is.

Glad to help, and I hope it helps others as well.

Edit: wait, don't set madVR to BT.2020 gamut, you only have 90% of DCI-P3, set DCI-P3 for gamut (or BT.709 with the TV set to standard gamut). 70% of a color space is not enough to consider it supported, even 90% isn't ideal.

[Oguignant]

Originally Posted by Asmodian

Glad to help, and I hope it helps others as well.

You're right, with gamma 2.4 looks really great. The problem (happy problem) with gamma 2.2 is also excellent. Both, hdr and 8 or 10 bit movies. To be honest, I'm surprised with the quality of the oled tv. I lost my time buying led tv.

[Oguignant]

Originally Posted by Asmodian

Edit: wait, don't set madVR to BT.2020 gamut, you only have 90% of DCI-P3, set DCI-P3 for gamut (or BT.709 with the TV set to standard gamut). 70% of a color space is not enough to consider it supported, even 90% isn't ideal.

@Asmodian, I did some tests. I keep gamma 2.4. looks great. In calibration leave bt.709 and pure power curve 2.4. I also have to activate Enable gamma processing in pure power curve 2.4?

On the TV only modify gamma to 2.4, I did not have to make any changes in the calibration of colors, brightness and contrast (is it normal?)
DCI-P3 and bt.2020 (not much difference between one and another) looks incredible with Hdr, but with bt.709 content not so much. Even after activating Wide Color Gamut. Madvr does an excellent job!

[Sunspark]

FYI, I just noticed that LAV Filters 0.69 has been released.

LAV Video

NEW: Support for 10-bit UtVideo
NEW: MagicYUV decoding support
NEW: Experimental support for CineformHD decoding
Fixed: Converting 12-bit 4:4:4 YCbCr to RGB32 would result in a garbled image
Fixed: Decoding certain H.264 streams could drop a few frames at the start of playback

[Asmodian]

Originally Posted by Oguignant

I also have to activate Enable gamma processing in pure power curve 2.4?

Nope, only set it on your TV and tell madVR what your TV is set to, gamma processing is for changing it from what your TV is set to.

Originally Posted by Oguignant

On the TV only modify gamma to 2.4, I did not have to make any changes in the calibration of colors, brightness and contrast (is it normal?)

Yes, perfectly normal.

Originally Posted by Oguignant

DCI-P3 and bt.2020 (not much difference between one and another) looks incredible with Hdr, but with bt.709 content not so much. Even after activating Wide Color Gamut. Madvr does an excellent job!

Sounds good then. If you have your TV set to wide gamut madVR needs to be set to DCI-P3 to get more correct colors. However your TV is much more accurate when set to standard gamut (madVR set to BT.709). Don't stress too much if you like the TV in wide gamut with madVR in BT.709, the reason it is not as accurate in wide gamut mode is so that it looks better with BT.709 content in wide gamut mode (but worse with DCI-P3/HDR content).

[Oguignant]

Originally Posted by Asmodian

Nope, only set it on your TV and tell madVR what your TV is set to, gamma processing is for changing it from what your TV is set to.

I turned the switch to 2.2. Some changes I will have to make in the configuration, because I do not get used to how the skin tones are. (very strong). not bad. Is that I'm not used to it. Then I'll take a screenshot from the tv app and upload it.

[Arm3nian]

Couple of questions:

Is it recommended to use "process HDR content" without an HDR display?

When I specify a 3DLUT, for any of the 2 options on the hdr page, it says wrong input/format for madvr.

Do I make a bt.709 lut or a bt.2020 lut for bt.2020 content on a normal gamut display (100% srgb)?

Thanks

[CruNcher]

Did somebody compared MadVR vs Sonys latest released X-Realtiy PP especially the Super Resolution Upscaler, compared to a relative price point optimized consumer Product like the XD80 series ?
What about Samsungs KS7000/8000 SAIT R&D improvements, they currently seem to win a lot of prices visualy not only from the Panel part itself but their FRC conversion seems to have reached the most stable state including the BFI could be even intersting comparing vs SVP and AMD Fluid Motion by now.


NGU vs Sony and Samsung with the ability to analyze Stream input in Realtime and adapt could be interesting

Panasonic is also doing some crazy stuff creating for each Frame a Histogram and adapt that to get better contrast and depth from inputs, also Samsung seems todo something similiar since some time now

AVG user seem to accept and like the upscaling results from X-Reality same for Panasonic HCX and HCX+ named PP.

It seems only the relatively cheap stuff fails heavily but the higher price points by now seem to not produce so bad results from the past.

seems also we reach now virtually in many devices at acceptable price points almost the Full REC 709 space and even some relative cheap devices come perfectly pre calibrated some even with native 120 HZ Panels and upto blasting 500 cd/m with those Ultra HD Premium peaks of 1000 at some higher cost from that half hit for some seconds stable.

Pretty impresed of the state now with HDR BT 2020 the new target, we finally reached Blu-Ray Master Quality and with 4K aquisition entering also pro sumer space and entry we even hit 1080 4:2:2 chroma it seems for the mass market, though native 10 bit is now at the Premium Level at least has left Professional only space and 12 bit being the next thing in preparation after 10 bit reached the Mainstream market.

I wonder now how long it will take from 10 bit to move from Premium to Mainstream finally, counting the days

[Georgel]

Seems I got a random Crash with this error

exception number : 1
exception class : Exception
exception message : Zugriffsverletzung bei Adresse $61a07805 in Modul 'XySubFilter.dll'. Lesen von Adresse $0.

No idea what could had caused it (?)

EDIT:: Also quite curious why the error is in German

[Deboi]

A couple of questions:

- In my old TV (only limited range), I had madVR (limited) - Graphics card (Full, with madLevelsTweaker) - TV (Limited). Now I´ve purchased a new one that accepts Full range. Shoud I use the same settings or change everithing to Full range?

- This TV has also a game mode that can do chroma 4:4:4, shoud I use this mode for madVR?

- In the rtings page says that is a 10 bit panel (Sony KDL 43W808c), in madVR settings In devices - properties I put 10 bit (or higher) and I use enable automatic fullscreen exclusive mode and use Direct3D 11 for presentation. Is this right even if the source isn´t 10 bit? It is an Optimus PC (GTX 960m and Intel HD 530). I don´t even know if the Intel card can do 10 bit.

Thank you and sorry for my English

[Asmodian]

Yes to all 3.

10-bit is good for any content. When converting from 8-bit YCbCr the RGB bit depth is greater than 8-bit, same with resizing.

[fedpul]

Originally Posted by Asmodian

Yes to all 3.

10-bit is good for any content. When converting from 8-bit YCbCr the RGB bit depth is greater than 8-bit, same with resizing.

4K 4:4:4 10 bit does not exceed the limits of HDMI 2.0?

Enviado desde mi MI 4LTE mediante Tapatalk

[nevcairiel]

Originally Posted by fedpul

4K 4:4:4 10 bit does not exceed the limits of HDMI 2.0?

At 60Hz it does, but the majority of people don't have a 4K TV yet (like the person who asked above, the model he listed is FullHD)