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Old 26th July 2022, 14:45   #2401  |  Link
SamuriHL
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PGen is definitely the way to go, especially with the new version coming out that'll handle DV calibration and verify (if LG ever fixes the damn verification mode bug on the 2022's). Fussing with madvr as a pattern gen is not really worth it. There's so many things that can go wrong (and most of them have nothing to do with madvr but more generally how the PC is configured). With PGen there's no guesswork.
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Old 26th July 2022, 17:10   #2402  |  Link
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Oh, yes, now I remember you telling the hdr10 gamma level. Hmmm, thanks, I pay attention when I get there.

Not sure what happened yesterday, after replacing Argyll, madvr, css file with the old ones, now it's ok.
So I created an sdr gamma 2.68 at 234 nits (80 oled light on G2) and it looks good and as it should, but:
it's nothing compared to when I enable HLG processing on top of it! The dynamic range is brutal!!!
I'll watch sdr content like this and see how it goes.
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Old 5th August 2022, 17:23   #2403  |  Link
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So, I created another gamma 2.4 3DLUT for PC mode Expert Dark (set to gamma 2.4, oled light 33) ~120nits and the resulting 3dlut again brightens the image (otherwise 3dlut is fine).
That means gamma 2.4 in PC mode overdarkens the image OOTB (I didn't have this issue with B8, although I only used it with >=4.10.25 firmwares.)
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Old 10th August 2022, 10:08   #2404  |  Link
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So, I created another gamma 2.4 3DLUT for PC mode Expert Dark (set to gamma 2.4, oled light 33) ~120nits and the resulting 3dlut again brightens the image (otherwise 3dlut is fine).
That means gamma 2.4 in PC mode overdarkens the image OOTB (I didn't have this issue with B8, although I only used it with >=4.10.25 firmwares.)
Bloody hell, AIPP was on in the expert dark preset, that's why the 3dlut brightened the image, now all's good there as well.
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Old 10th August 2022, 11:45   #2405  |  Link
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Lol! Always triple check the settings in each picture mode. I find the g2 can be a bit touchy at times. Especially switching back and forth to PC mode.

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Old 12th August 2022, 04:05   #2406  |  Link
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Played around with ZRO and PGen 1.3, it's pretty fast to read patches.
Much better than Calman, HCFR is somewhat close.
Only tested SDR on a monitor, will try HDR on the C2 this weekend hopefully.

Managed to run DeviceControl on my Linux machine, so that's cool.
I don't really need it with ZRO, though. Useful to shutdown the Pi.

ZRO is really limited, so might try integrating the PGen in DisplayCal.
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Old 12th August 2022, 12:20   #2407  |  Link
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Quote:
Originally Posted by SamuriHL View Post
Lol! Always triple check the settings in each picture mode.
Yeah, it seems so

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Played around with ZRO and PGen 1.3, it's pretty fast to read patches.
Much better than Calman, HCFR is somewhat close.
Nice to hear it! So Calman is so buggy, laggy and I don't know how a big company can get away with a product like this.
madVR/madTPG also got a big speedup at some point, see below.

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Only tested SDR on a monitor, will try HDR on the C2 this weekend hopefully.
What and how do you want to deal with HDR10?

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Managed to run DeviceControl on my Linux machine, so that's cool.
I don't really need it with ZRO, though. Useful to shutdown the Pi.
Nice! Not sure why it was implemented in perl though

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ZRO is really limited, so might try integrating the PGen in DisplayCal.
Woow, this would be cool! (Although I don't have PGen and maybe never will )
DisplayCal still has issue with x64 version of ArgyllCMS, sometimes it just throws an error after the long profiling session If you can take a look why and fix it?

About madVR/madTPG, still SDR profiling: it got way faster (when exactly???).
Using the preset default ~1545 patches, White level drift comp is on, Maximize RGB diff is set at Patch sequence (to make it faster on OLED) the rest is default, profiling time with:
- old stable release: ~50 minutes
- beta 163: ~35 minutes
verifying with XXL video with 755 patches:
- old stable release: ~22 minutes
- beta 163: ~15 minutes

I also used the latest Argyll 2.31 32bit version and now all is good (using the 2018 ccss spectral correction, maybe AIPP was also on at that time??? ).
The resulting whitepoint is still completely random: sometimes it's 6480K or below, sometimes it's 6520K or above (I prefer the latter), so multiple profiling sessions need to be run to have the desired result.

I haven't tried HDR10 yet with the new beta, that's what I'll do next.
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Old 12th August 2022, 12:58   #2408  |  Link
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What and how do you want to deal with HDR10?
2pt for HDR10, probably 2pt + config for Dolby Vision.
Might try 22pt Dolby Vision eventually.
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Old 12th August 2022, 14:12   #2409  |  Link
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22pt DV works very well. I've done it to my G2 and just did a 20pt for my C8 last weekend. Of course I can't validate anything on the G2 in DV but it's certainly better than using the iTPG. PGen 1.3 on an RPI4 absolutely rocks. ColourSpace is getting LG support built in, as well. I'm hoping that means uploading LUTS and all of that will be controllable from CS at some point. No more DeviceControl at all if that happens. The next firmware release should allow us to calibrate 22pt HDR on the C2/G2. Would be curious to see how that goes using 10bit patches. I still need to deal with SDR on the G2 one of these weekends. I've had zero time for anything lately. Right now I don't have it dialed in very well for SDR modes.
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Old 13th August 2022, 15:02   #2410  |  Link
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I haven't tried HDR10 yet with the new beta, that's what I'll do next.
FYI, I ran into an issue using madTPG with HDR on later betas, I want to say it was 159 at the time. I forget exactly what the issue I ran into was, something like saturation sweeps appearing to show severe gamut compression even when set to HDR passthrough IIRC. I ended up downgrading to 113 for this purpose and everything worked great, so I didn't dig into the issue any further. Will be interesting to see if you have a similar experience.

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