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Old 24th March 2018, 22:37   #49801  |  Link
j82k
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On 2016 LG Oleds (not sure about 2017) HDR is messed up when using PC HDMI input icon. Not sure what the TV is doing with HDR in pc-mode but it looks as if it was using a wrong color gamut or something like that.

I haven't watched mad max in HDR yet, so I don't know how colorful it is but other movies will look desaturated and dull when using pc-mode HDR.

Last edited by j82k; 24th March 2018 at 22:39.
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Old 25th March 2018, 03:32   #49802  |  Link
Asmodian
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Quote:
Originally Posted by famasfilms View Post
normally I have the PC input assigned as a PC on the television.

Changing this input to "home theatre" or anything else changes the colour tone of HDR content dramatically.
I have a 2017 LG OLED and you asking made me check, the difference is dramatic:

PC v.s. Home Theater icon used for the input on the TV, identical settings otherwise. Set to the same D65 white point. 538 nits, OLED 80, Contrast 100, Brightness 50, Color 50, Technicolor, Warm2 High: R=-8, G=-8,B=5, Low: R=0, G=0, B=-1.

HDR Home Theater:

HDR PC:


Damn you LG!

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Originally Posted by famasfilms View Post
Which is the right setting?
Home Theater seems to have much better coverage on my TV. It is still mostly 4:4:4 but 4:2:2 shows up more than it does when set to PC, so there is extra processing that has some color blending. Good for video but not great for a monitor or precise chroma upscaling.

Edit: Neither mode is that great out of the box, the white point is pretty bad by default, at least on my TV. HDR content definitely looks better in Home Theater mode, even after creating a 3DLUT. I get a better 3DLUT for obvious reasons.
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Old 25th March 2018, 06:28   #49803  |  Link
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Without madshi, this thread is so pointless that I completely understand his absence.
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Old 25th March 2018, 06:57   #49804  |  Link
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What a useful post.
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Old 25th March 2018, 07:04   #49805  |  Link
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Originally Posted by foozoor View Post
madshi posted a new test release.
Got some notes to go with that? Just posting a build is almost pointless.

Oh.. those HDR options.. 0.0



Quick comparison with the previous madVR version shows this performing a better HDR downscale, colors are more natural and I see better graduation too with the default settings. Keeping it.

Last edited by ryrynz; 25th March 2018 at 07:21.
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Old 25th March 2018, 07:59   #49806  |  Link
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I understand that HDR is the future, and that many of the most active members on the thread have already invested in HDR, but I hope madshi doesn't forget about us poor peasants who are still living in an SDR world.

I'm perfectly satisfied with the current madVR release, and can't think of any improvements it needs, but I got used to madVR getting more awesome for SDR with each release.
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Old 25th March 2018, 08:06   #49807  |  Link
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This is for HDR to SDR downscaling as I said.. And honestly if you can download HDR content even if it's on an SDR screen, you should.
madVR provides what's likely the best HDR to SDR downscaling available.. make use of it.
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Old 25th March 2018, 10:49   #49808  |  Link
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Yeah, although I've to use DXVA to downscaling, HDR contents look fantastic on my SDR projector/monitor screens.
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Old 25th March 2018, 11:15   #49809  |  Link
oldpainlesskodi
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Quote:
Originally Posted by ryrynz View Post
This is for HDR to SDR downscaling as I said.. And honestly if you can download HDR content even if it's on an SDR screen, you should.
madVR provides what's likely the best HDR to SDR downscaling available.. make use of it.
Indeed, and on my set (Samsung UE55KS8000 using HDR+ setting), with lumance reduction color space set to none, the tone mapping and quality looks very close HDR passthrough using the OS HDR toggle.

Amazing work indeed.

K

Last edited by oldpainlesskodi; 25th March 2018 at 11:37.
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Old 25th March 2018, 12:38   #49810  |  Link
Manni
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Quote:
Originally Posted by ryrynz View Post
This is for HDR to SDR downscaling as I said.. And honestly if you can download HDR content even if it's on an SDR screen, you should.
madVR provides what's likely the best HDR to SDR downscaling available.. make use of it.
I am sure you meant purchase, rent or legally stream.
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Old 25th March 2018, 12:47   #49811  |  Link
Razoola
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I have always used 'Home Theater' to label my HDMI port on my 2016 LG E6. The lst lime I tried the 'PC' label I remember it could not do UHD at 23.976 / 24.

Going back to nvidia and 10bit vs 12bit. What I think is really needed is a nvidia driver hack to unlock 10bit for those of us who have a panel that can do both 10bit and 12bit.
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Old 25th March 2018, 13:03   #49812  |  Link
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I am sure you meant purchase, rent or legally stream.
there is quite a lot of dowloadable HDR material which is legal, demos and the like.
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Old 25th March 2018, 14:40   #49813  |  Link
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I have always used 'Home Theater' to label my HDMI port on my 2016 LG E6. The lst lime I tried the 'PC' label I remember it could not do UHD at 23.976 / 24.

Going back to nvidia and 10bit vs 12bit. What I think is really needed is a nvidia driver hack to unlock 10bit for those of us who have a panel that can do both 10bit and 12bit.

well now.. this post got me thinking about the colour output problem I have with my RX card and i've found something interesting.

I have an 2015 OLED, when I play movies I got blown out reds when no calibration is selected in MADVR, i've logged this as a bug.

I have found however that by calibrating my TV in MADVR to BT2020 with a BT709 curve it corrects the colours, to my eye anyway.

Whats interesting is that this happens on both my 2015 OLED and my 2016 samsung LCD.

What I found today was interesting though. I ithe BLURAY LABEL as it gives me access to motion processing which I find essential, PC mode greys out all motion processing.

If I set my HDMI output to PC mode this fixes the problem, colours are now back to normal in MADVR.

When I select HOME THEATER they are even worse than BLURAY.

I've no idea what this suggests, is there mismatch colour gamut match up on the GPU side or MADVR, no idea whats going on, hopeing MADSHI can unravel this when he's back with us.
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Old 25th March 2018, 14:46   #49814  |  Link
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could MADVR be applying a higher colour gamut in calibration off mode maybe incorrectly, but then why does it not do this when my TV is in PC mode, all very odd.
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Old 25th March 2018, 16:40   #49815  |  Link
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Is it possible to turn off image improvement on Madvr for nativ 4k Content ?

Only use madvr for the HDR to SDR for 4k ?

If yes , how ?
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Old 25th March 2018, 16:55   #49816  |  Link
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Profiles (in settings click "processing"/"scaling algorithms"/"rendering"->"create profile group").
https://forum.doom9.org/showthread.p...17#post1271417
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Old 25th March 2018, 17:01   #49817  |  Link
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Originally Posted by mclingo View Post
well now.. this post got me thinking about the colour output problem I have with my RX card and i've found something interesting.

I have an 2015 OLED, when I play movies I got blown out reds when no calibration is selected in MADVR, i've logged this as a bug.

I have found however that by calibrating my TV in MADVR to BT2020 with a BT709 curve it corrects the colours, to my eye anyway.

Whats interesting is that this happens on both my 2015 OLED and my 2016 samsung LCD.

What I found today was interesting though. I ithe BLURAY LABEL as it gives me access to motion processing which I find essential, PC mode greys out all motion processing.

If I set my HDMI output to PC mode this fixes the problem, colours are now back to normal in MADVR.

When I select HOME THEATER they are even worse than BLURAY.

I've no idea what this suggests, is there mismatch colour gamut match up on the GPU side or MADVR, no idea whats going on, hopeing MADSHI can unravel this when he's back with us.
Your choice of a BT709 curve won't help matters. Try setting this to 2.20. Read Asmodian's madVR Options Explained in the Software forum for more information.

Last edited by Warner306; 25th March 2018 at 17:34.
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Old 25th March 2018, 17:02   #49818  |  Link
Warner306
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Originally Posted by mclingo View Post
could MADVR be applying a higher colour gamut in calibration off mode maybe incorrectly, but then why does it not do this when my TV is in PC mode, all very odd.
When off, I think it assumes your display is BT.709 and 2.20. That could also be your problem.
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Old 25th March 2018, 17:11   #49819  |  Link
brazen1
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I don't even know why PC mode is included in displays anymore? I bet your red colors change so dramatically because when in PC mode, custom color calibration is defaulted to native. Also, HDR deep color settings prefer native.
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Old 25th March 2018, 17:30   #49820  |  Link
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i dont have any calibration tools but when I apply the settings we think are correct its still way too red compared to the standard EVR renderer.

As i've said before, if I apply a BT2020 with BT709 curve what I get looks identical to EVR renderer, no idea why this is, it just is, I even bypassed my AVR and it made no difference.

Something odd going in MADVR with AMD cards, (i have no issues with my NVIDIA 1050 in the same machine with calibration off)
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