Dolby Vision now possible through MP4 Mux.

[daffie]

Yeah I know. And good that is possible thanks to your tools. But for me that is too much hassle.

If I buy an expensive UHD disc I expect the best quality possible in Dolby Vision without doing anything extra.

[RESET_9999]

yeah pirates always get better quality than paying customers. You get robbed when you follow the rules, always been like that.

Speaking of 4.0 vs 2.9, I found another difference with 4000nits MDL. cmv2.9 4000nits starts dimming the image much earlier than the TV target: around 400-450nits on my C2 and even when L1 is at the minimum 100nits, there is tone mapping going on and the image looks darker than cmv4.0 100nits.

cmv2.9 1000nits mdl (dims at 800-850nits): https://drive.google.com/file/d/1NM0jOb ... drive_link
cmv2.9 40000nits mdl (dims at 400-450nits): https://drive.google.com/file/d/1WyOkmV ... drive_link
cmv4.0 40000nits mdl (dims at 800-850nits): https://drive.google.com/file/d/1e3FkhW ... drive_link
cmv4.0 1000nits mdl (dims at 800-850nits): https://drive.google.com/file/d/1lo-gJX ... drive_link

[daffie]

Maybe better to stop buying UHD Bluray discs and just download all WEB 2160p releases. That way we at least get cmv4.0 in DoVi...

[RESET_9999]

check your PM. I already do all the cmv4.0 transfer. You just have to inject.

[daffie]

My black levels in SDR are ok, but in HDR the 65-66 bar is visible and in DoVi I'm not seeing bar 67+68... So I'm missing shadow details in DoVi.

even in cmv4.0 ??? cmv2.9 will be crushed no matter what

Did some testing in very dark room.
Calibrated SDR : flashing bar from 67 onwards. That's perfect.
Calibrated HDR: flashing bar from 65 onwards. That's raised blacks. Uncalibrated HDR is exactly the same.

Uncalibrated Dovi cm 2.9: flashing bar from 68 onwards. But the first is barely visible you have to get your nose on the screen and even then it's really faint.
Uncalibrated Dovi cm 4.0: flashing bar from 65 onwards. Again 65 very faint.

Calibrated Dovi was awful with first bar somewhere in the low 70's visible. So I reset that to default.

So indeed Dovi cm 4.0 is kind of perfect in terms of black level. Better than 2.9 for sure.

[RESET_9999]

Sounds the same as my C2 for DV... cmv2.9 is just broken.
I expect the same on the G5 tomorrow...

Can you try the color clipping patterns cmv4.0 vs cmv2.9... On my C2, cmv2.9 is clipped and cmv4.0 perfect: https://slow.pics/c/iYxAEaJt
https://drive.google.com/drive/u/1/fold ... RiSeEAg72W

Uncalibrated Dovi cm 2.9: flashing bar from 68 onwards.

This sounds like the cmv2.9 1000nits MDL pattern? Try the 4 000 and 10 000nits versions, it's a lot worse.

Calibrated HDR: flashing bar from 65 onwards. That's raised blacks. Uncalibrated HDR is exactly the same.

Is the pure black test file also raised in HDR10? I hear the G5 too has raised black in HDR10. I don't care much about HDR10 though, because I only have DV in my library.
https://drive.google.com/drive/u/1/fold ... PpN6PKnkh3

[daffie]

Will try the color clipping tomorrow after work. Already in bed now.

Yes, that was the 1000 nits cmv2.9 pattern.

[kazuma]

reset_9999 please share your experience of the G5 in combination with the ugoos in the future.

[RESET_9999]

reset_9999 please share your experience of the G5 in combination with the ugoos in the future.

Got delivered an hour ago. I'm working the whole day, but should be able to set it up tonight and watch a 4000-nits movie and will do all the testing probably this weekend.

[dom61]

Got delivered an hour ago. I'm working the whole day, but should be able to set it up tonight and watch a 4000-nits movie and will do all the testing probably this weekend.

Congratulations! let us know how it goes.

[daffie]

Can you try the color clipping patterns cmv4.0 vs cmv2.9... On my C2, cmv2.9 is clipped and cmv4.0 perfect: https://slow.pics/c/iYxAEaJt
https://drive.google.com/drive/u/1/fold ... RiSeEAg72W

Uncalibrated Dovi cm 2.9: flashing bar from 68 onwards.

This sounds like the cmv2.9 1000nits MDL pattern? Try the 4 000 and 10 000nits versions, it's a lot worse.

Calibrated HDR: flashing bar from 65 onwards. That's raised blacks. Uncalibrated HDR is exactly the same.

Is the pure black test file also raised in HDR10? I hear the G5 too has raised black in HDR10. I don't care much about HDR10 though, because I only have DV in my library.
https://drive.google.com/drive/u/1/fold ... PpN6PKnkh3

Color clipping patterns :
No clipping in any of the test files on cmv2.9 and cmv4.0
So both are perfect here.

Flashing bar for 4.000 nits and 10.000 nits MDL on cmv2.9 : very faint bar starts from bar 69 (so only 1 bar worse than 1.000 nits MDL).

The pure black test file is NOT raised in HDR10.
It is slightly raised in Dolby Vision and SDR though. But I will leave it like this. I prefer slightly raised black to less shadow detail.

[RESET_9999]

Interesting, I guess the cmv2.9 bugs are less important on a brighter TV. My C2 crushes black at 80 with the 10 000nits pattern
Let see how it is on the G5...

[daffie]

Interesting, I guess the cmv2.9 bugs are less important on a brighter TV. My C2 crushes black at 80 with the 10 000nits pattern
Let see how it is on the G5...

Is my G1 so much brighter than your C2?

Have you tried reverting back the calibration for Dolby Vision to default?

Like I said before, after the calibration dolby vision had a lot more crushed black.... So I reverted back to factory settings for dolby cinema mode and it was fixed.

[RESET_9999]

ha i thought you had a G4...

I just had a quick look on my G5 (FFM OOTB) and RGB clipping behaves exactly as my calibrated C2. cmv2.9 clipped and 4.0 perfect.

[daffie]

OK. I see what I see. Strange, but I guess I should be happy with my results

I guess for some reason the cmv2.9 bug is far less obvious on the G1/C1 series from 2021 compared to the 2022 series?