[baba420]

@safcsat or anyone else,

I would like to ask you as a fellow LG E6 owner for your settings for Kodi / Windows / Intel Display Driver version etc. As I mentioned yesterday my E6 doesn't upscale 1080p 3D content to 4K, which is very weird. Maybe I have a faulty setting or something.

This is what I get when I playback a 3D iso with latest Kodi MVC build (20170201-68e6a3a-msdk_mvc_wip):
http://imgur.com/0RBe9Df
http://imgur.com/Vr80E1E

My current setup:

- LG OLED 65E6V version 04.30.95
- Asrock Beebox-S 7200U connected with HDMI 1.4 port to my TV's HDMI 2.0a port directly
- Windows 10 Education with latest updates
- Intel Display Driver version 15.45.14.4590 (latest version available through Intel Driver Update Utility 2.7)
- Resolution Windows 10 set at 1920x1080p (3D) and on Intel Graphics settings at 1920x1080@60Hz
- Kodi resolution is at 1920x1080p@60Hz
- hardware based is selected as Stereoscopic 3D mode

What am I doing wrong? Any help would be appreciated.

OK, To get your TV to Show the 2160p resolution for 3D, you need to connect the HDMI to he HDMI 2.0 port and change the resolution of your AsRock Beebox to 3820X2160,
Now when you play 3D MVC your LG 3D TV will display it movie as Top/Bottom
Use Magic Remote change the 3D settings
Now the Display INFO will show 2160p.

But what is the preferred method for watching 3D content, hardware based or interlaced method?

[3DBuff]

But what is the preferred method for watching 3D content, hardware based or interlaced method?

Check P750mmx post #2538 above. Looks like HDMI 2.0 interlaced has the best quality.

[Korrigan]

TV displays [3D][1080p@24Hz]
Picture looks good, the same as with hardware option, not different that I can see.
No stutters, smooth image.

But isn't that half the resolution of "Hardware Based"? So there is a "big" (?) difference and you just can't see it?

[3DBuff]

P750mmx great review.

From what you are saying it appears that quality and type of video output hardware processing the file into video stream has greater impact on final image quality than type of 3D mode.

One thing is missing. Can you select 3840x2160 resolution at 24Hz in Kodi desktop using HDMI 1.4 (any hardware) and then select interlace mode for 3D?
It should be possible but you don't have it in your list of tests.

Waiting on:
"TV displays [3D]*[3840x2160@24Hz]* << there will be a follow up on this."

[noggin]

TV displays [3D][1080p@24Hz]
Picture looks good, the same as with hardware option, not different that I can see.
No stutters, smooth image.

But isn't that half the resolution of "Hardware Based"? So there is a "big" (?) difference and you just can't see it?

AIUI it isn't 'interlaced' in the way 'interlaced' 3D is usually thought of. This isn't a 1080i signal carrying 2 x 1920x540 eye feeds in consecutive fields (which are effectively sent sequentially over HDMI as 'real' interlaced video is) - where the vertical resolution of the 2 x 1920x1080 eye feeds is halved. The 3D TV receiving this signal doesn't deinterlace it as it would conventional interlaced video (merging fields with static content, and interpolating fields on moving content) and instead treats them as two 3D eye feeds, scaling the 2 x 1920x540 fields back to 1920x1080 fields, and then treating them as if they were alternativing frames for each eye. (Totally ignoring the real reason for interlacing). This requires that the 3D TV is fully aware that the signal is 3D interlaced as it handles it very differently to 2D interlaced content in the same 1080i structure.

AIUI Instead of doing this it is potentially possible to use a similar, but subtly different, technique - using interleaving - so 2 x 1920x1080 eye feeds are scaled to 3840x1080 and merged to create a 2160 line image? So no vertical resolution drop. The Passive polarising filters on the 2160 line panel are configured so that 1080 lines are polarised to go one way, and 1080 lines are polarised to go the other way, in an alternating fashion. (You wouldn't want to encode a video in this format - as any compression artefacts could involve eyes 'leaking' - which is why TAB and SBS are used in preference as storage when MVC can't be - but as a baseband uncompressed interconnect it makes sense)

In baseband video terms the signal isn't interlaced, it's a progressive 2160/24p signal that just happens to have 1080 lines from one eye, and 1080 lines from another eye interleaved. So it delivers the same resolution as a 2160p TAB signal BUT crucially it doesn't require your TV to handle 2160p TAB, as the TV doesn't need to do any processing to the signal other than pixel/line-matching the input signal properly - so the lines are nailed to the right polarising filters.

Alternatively there could be a TAB or SBS option - which would also (if using 2160p) not reduce the resolution vertically or horizontally - and this could be flagged via info frames I believe?

[3DBuff]

TV displays [3D][1080p@24Hz]
Picture looks good, the same as with hardware option, not different that I can see.
No stutters, smooth image.

But isn't that half the resolution of "Hardware Based"? So there is a "big" (?) difference and you just can't see it?

The display shows [3D]. It has to detect something. It's not just 540 lines per eye. Maybe it is some hardware handshaking and 1080 lines per eye interlaced or frame packing.

[3DBuff]

AIUI it isn't 'interlaced' in the way 'interlaced' 3D is usually thought of. This isn't a 1080i signal carrying 2 x 1920x540 eye feeds in consecutive fields (which are effectively sent sequentially over HDMI as 'real' interlaced video is) - where the vertical resolution of the 2 x 1920x1080 eye feeds is halved.
....

There are 2 forms or "Interlaced"
One is standard display or HD 1080i (interlaced) or opposite 1080p (progressive).

The second is the one we are talking about in 3D HDMI where old format of 1080i is almost non existent in today's electronics and LCD panels.
"Interlaced" you can find in Kodi MVC version:
Settings -> System -> Display -> Stereoscopic 3D mode / Current [Interlaced]
This will be " Interleaving" as pointed out by Noggin but it is called "interlaced" left / right eye in a single frame for the purpose of differentiate from other 3D modes.

I think we can all agree at this point that "Interlaced" in this forum thread is 3D single frame 2160p with both views left / right eye interleaved together.

[afedchin]

But what is the preferred method for watching 3D content, hardware based or interlaced method?

hardware based is always preferred, because player sends frames as they are without any post-processing

[p750mmx]

TV displays [3D][1080p@24Hz]
Picture looks good, the same as with hardware option, not different that I can see.
No stutters, smooth image.

But isn't that half the resolution of "Hardware Based"? So there is a "big" (?) difference and you just can't see it?

The display shows [3D]. It has to detect something. It's not just 540 lines per eye. Maybe it is some hardware handshaking and 1080 lines per eye interlaced or frame packing.

The Display is showing the [3D] icon because I pressed the 3D button, but....

there was actual no reason for it. The thing is, as stated above that noggin explained (and makes a lot of cense), the TV displays a (great) 3D picture without setting it in 3D. TV Info is still the same, but without the [3D] icon. I can't change 3D settings in the TV menu then, but that really is not a problem. So I choose Interlaced as standard, push the play button, and a 3D image shows up, in 3840x2160@24p (using Kodi).

And when not using Kodi, but PowerDVD 17 with an BR 3D ISO, things get a bit stranger.

Now PDVD17 isn't quite ready I guess, but the weird thing is it can put out a 4k 3D signal what my TV shows as [3D][3840x2160@60Hz). In this case I MUST choose the 3D function on my TV or I get a double image, what usual shows when a TV is not in 3D when 3D media is played. Not SBS or TB, but 2 images horizontal a bit apart.
Also the 3D picture quality and smoothness is one of the best I've seen, and I've seen quite a lot of 3D over the years. I set the default PDVD 3D display to Interlaced TV for this, the rest of the choices aren't working for 3D with my setup.

So a 3D image in 60Hz, is a bit strange? PDVD ignores the metadata and uses the desktop refreshrate I guess?

[p750mmx]

P750mmx great review.

From what you are saying it appears that quality and type of video output hardware processing the file into video stream has greater impact on final image quality than type of 3D mode.

One thing is missing. Can you select 3840x2160 resolution at 24Hz in Kodi desktop using HDMI 1.4 (any hardware) and then select interlace mode for 3D?
It should be possible but you don't have it in your list of tests.

[cut]

For the Haswell system it's there (3840x2160@30Hz), but you want it set in @24Hz before playing 3D media?

For the Second (Kaby Lake system), I don't remember if I did, I thought I did but forgot the wright it down I guess.

Should I test this and what info could this give?

[brazen1]

I think by software decoding instead of hardware decoding you are post processing to the point where your display is actually doing a 2D>3D conversion.
I would bet if you pressed your remote 3D button during playback it's going to pop-up stop watching 3D or something to that effect. If you press it again it's going to give you a choice of SBS, TAB, or 2D>3D conversion because it's reading at 2D instead of 3D even though it's frame packed or simply go into 2D>3D without displaying that is the mode it's in. In my early experimenting with active, I got the TAB rendering just like you describe and posted my results. It was in 3D and looked different. Different like 2D>3D conversion from the display which wasn't optimal, just different.

Furthermore, you should take a look at your display settings during playback. Do you see things greyed out that shouldn't be?

[3DBuff]

P750mmx great review.

From what you are saying it appears that quality and type of video output hardware processing the file into video stream has greater impact on final image quality than type of 3D mode.

One thing is missing. Can you select 3840x2160 resolution at 24Hz in Kodi desktop using HDMI 1.4 (any hardware) and then select interlace mode for 3D?
It should be possible but you don't have it in your list of tests.

[cut]

For the Haswell system it's there (3840x2160@30Hz), but you want it set in @24Hz before playing 3D media?

For the Second (Kaby Lake system), I don't remember if I did, I thought I did but forgot the wright it down I guess.

Should I test this and what info could this give?

Just trying to understand why on Haswell system (3840x2160@30Hz) interlaced selected you are getting stutter and high CPU usage up to 100%. Looks like some software decoding or upconversion 2D to 3D.

You didn't have this issue with Kaby Lake HDMI 2.0 but the settings were the same. Can you check on Kaby Lake HDMI 1.4 port with 4K display and interlaced mode selected?

[p750mmx]

P750mmx great review.

From what you are saying it appears that quality and type of video output hardware processing the file into video stream has greater impact on final image quality than type of 3D mode.

One thing is missing. Can you select 3840x2160 resolution at 24Hz in Kodi desktop using HDMI 1.4 (any hardware) and then select interlace mode for 3D?
It should be possible but you don't have it in your list of tests.

[cut]

For the Haswell system it's there (3840x2160@30Hz), but you want it set in @24Hz before playing 3D media?

For the Second (Kaby Lake system), I don't remember if I did, I thought I did but forgot the wright it down I guess.

Should I test this and what info could this give?

Just trying to understand why on Haswell system (3840x2160@30Hz) interlaced selected you are getting stutter and high CPU usage up to 100%. Looks like some software decoding or upconversion 2D to 3D.

You didn't have this issue with Kaby Lake HDMI 2.0 but the settings were the same. Can you check on Kaby Lake HDMI 1.4 port with 4K display and interlaced mode selected?

So just test setting 3840x2160@30Hz on Kaby Lake 1.4 port and watch CPU load when playing? I do that later today when the wife is out of the picture

[3DBuff]

Yes, this would conclude if there is something special with HDMI 2.0 interlaced mode.

You could also test Kodi at 4K 60Hz to see if there is a difference with PowerDVD.
Go to Kodi -> Settings -> Player -> Videos -> Adjust display refresh rate [OFF] and Sync Playback to display [OFF].
Now you should be able to select 3840x2160@60Hz in Kodi display settings and play 3D 24fps at 60Hz just like PowerDVD.

Typically film material stored on Blu-Ray is at 24fps (most of 3D's). When played on 60Hz display it produces jitter in frame rate unless you have good frame interpolation done at the TV or player (computer). My Epson projector has very good frame interpolation and I always have it on for 3D movies. Active glasses operate at 60Hz and this is the only way to synchronize 24 fps video to 60Hz glasses. The end result is pretty good on large 150" screen.

[p750mmx]

OK, display refresh rate is mostly active with my setups, sync back always off. Will test this also but not everything allover again

Edit: Testing postponed, something else is more important right now.