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Old 21st January 2022, 12:08   #2121  |  Link
chros
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Quote:
Originally Posted by Kuler087 View Post
With Davinci Resolve HLG in, HDR10 out. it's quite easy to do but time-consuming.
I see, cheers.

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I don't have an HDR monitor at work to test passthrough
Well, that's what we want to use/test

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but as you said, HDR to SDR clearly is not working: oversaturated (no color difference with the shader or not ? I might not be using it right?).
Thanks for the images, yes, I think it's oversaturated a bit: why I think it is because with normal HDR10 content I have to add +5 saturation in madvr (I use the synthetic 3dlut with hdr output), while with this I have to remove it

It should be a clear color difference on-the-fly when you enable the shader with hdr output: without the shader it crushes black and blows out highlights.

I tried the matrix and source_primaries as well, but they don't do anything good.
I also tried to decrease saturation (in madvr, e.g. -5), but fire starts to become pink, so it's a no go.
Maye this saturate line is the issue? They added a comment here why they use it with d3d11 shaders (but this use different math):
"use saturate(), because pow() can not take negative values"
So I'll try it out with pow() instead ...

Let's use madmeasure v145 for testing, that looks to be a good build ...

EDIT: I tried "pow(color, 1.0)" instead of saturation but the image is the same, so that's not the issue.
Maybe this one is?
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Old 22nd January 2022, 02:39   #2122  |  Link
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I don't really care about madVR anymore but I was curious about the mercury curve.
Overall it's pretty similar to my last custom curve, with a slight emphasis on highlight detail and contrast (therefore slightly dimmer midtones).

I'd say it's pretty much equivalent at punch 20, with defaults (HSTM limit) and HSTM Log Very Low.
I think most of the early feedback was around 12 for lower nits, which still looks very close to 20 at 870 nits.
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Old 22nd January 2022, 06:02   #2123  |  Link
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Quietvoid

Did you delete your madvr HDR Tone mapping settings?
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Old 22nd January 2022, 06:11   #2124  |  Link
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Chros

Do you still play around with new beta of madvr?
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Old 22nd January 2022, 14:02   #2125  |  Link
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mercury curve.
Overall it's pretty similar to my last custom curve, with a slight emphasis on highlight detail and contrast (therefore slightly dimmer midtones).
I'd say it's pretty much equivalent at punch 20, with defaults (HSTM limit) and HSTM Log Very Low.
I think most of the early feedback was around 12 for lower nits, which still looks very close to 20 at 870 nits.
Thanks. What does the punch value does actually? Is it for the steepness of the curve? If so, higher value equals to higher steepness?

I don't like HSTM with high display peak and hdr passthrough, so it's disabled here.

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I don't really care about madVR
Why is that, out of curiousity?
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Old 22nd January 2022, 15:48   #2126  |  Link
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Thanks. What does the punch value does actually? Is it for the steepness of the curve? If so, higher value equals to higher steepness?
I don't know what base algo is behind the curve, it may or may not be the same as custom curves (which were limited to 2-line and bt.2390).

Higher punch usually means brighter and more contrast.
With mercury nowadays there isn't any highlight detail loss even at punch 20 for our target nits.


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I don't like HSTM with high display peak and hdr passthrough, so it's disabled here.
Have you tried the HSTM limit? It seems to solve the problem where HSTM would blow out highlights


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Why is that, out of curiousity?
Mostly it's not convenient for me to use a PC for playback. Plus my TV's HDMI cable always falls off my GPU

Also, HDR10 is pretty much unwatchable for me either because of bad factory PQ tracking, or the 1D LUT issues I mentioned before.


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Quietvoid

Did you delete your madvr HDR Tone mapping settings?
No I haven't deleted anything.
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Old 22nd January 2022, 22:52   #2127  |  Link
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Quietvoid

Where is it located? Can't seem to find it
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Old 23rd January 2022, 00:13   #2128  |  Link
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I don't know, it's outdated anyways.
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Old 25th January 2022, 03:36   #2129  |  Link
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@chros Have you tried this? https://www.avsforum.com/threads/201...#post-61381379
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Old 1st February 2022, 01:08   #2130  |  Link
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quietvoid,

If you have the time to play around with the new madvr beta, pls do so. Tried it using most of your last setting and it looks promising. The setting being shared in the avs forum are mostly for front projectors. We need something that is for OLED
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Old 1st February 2022, 16:24   #2131  |  Link
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quietvoid,

If you have the time to play around with the new madvr beta, pls do so. Tried it using most of your last setting and it looks promising. The setting being shared in the avs forum are mostly for front projectors. We need something that is for OLED
I have no interest in using madVR so I won't be testing new settings. Sorry.
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Old 1st February 2022, 20:09   #2132  |  Link
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I may poke around with it over the next few days. I just ordered a longer HDMI cable so I can hook my laptop up to my VRROOM for testing. Ultimately I've not been using a PC solution for quite a few months now and honestly haven't missed it much.
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Old 1st February 2022, 20:46   #2133  |  Link
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Seems to be a trend

(at least among those of us whose video cards died an untimely death)
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Old 1st February 2022, 21:56   #2134  |  Link
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Yea I'm honestly more interested in saving up for a new G2 (potentially) than I am a new HTPC. There are differences in using madvr dtm, there's no question. But I'd argue, as many others have, that if you're watching mostly 1000 nit content on a 870 nit screen, the benefit to dtm is not going to be super huge. Hence, I don't really miss it much.
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Old 1st February 2022, 22:38   #2135  |  Link
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DoVi perfect black with 2018 models, 2nd round
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Old 1st February 2022, 23:05   #2136  |  Link
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Saw your post over at AVS earlier. I don't seem to have this particular issue with my C7. While DV content itself is often not 100% black, test patterns and black bars usually are.

*Edited from "always" to "usually" LOL
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Old 2nd February 2022, 13:12   #2137  |  Link
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I have no interest in using madVR so I won't be testing new settings. Sorry.
What are you using, nowadays? I remember SamuriHL mentioning Nvidia Shield (IIRC).
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Old 2nd February 2022, 15:05   #2138  |  Link
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What are you using, nowadays? I remember SamuriHL mentioning Nvidia Shield (IIRC).
I use my Firestick 4K Max mostly, so pretty much the same I guess.
Though I'll have to try using mpv after my HDR calibration is fixed, I doubt I'll actually use the PC because it's less convenient anyways.
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Old 2nd February 2022, 20:00   #2139  |  Link
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Yup, I'm using a Shield Pro. Dolby Vision for things that have it, HDR10 for those that don't. I also have an ATV 4K 2nd gen. And of course my UB820. I don't feel I'm missing out on much with this setup.
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Old 3rd February 2022, 15:25   #2140  |  Link
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That was a short lived attempt at madvr on my laptop. I've never gotten it to work right when outputting to the C8. This time was no exception. I can't get it to trigger HDR. I switch back to JRVR and it works perfectly fine. Whatever. I'm over trying to deal with that.
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