Full or Half SBS

plex-vr

#1

I have a bunch of 3D movies (that I have never done anything with) that I would like to start encoding for use with Plex VR. Before I start encoding my movies, does the server - > client support Full Side by Side (SBS) or Half SBS? Also, I plan to use BD3D2MK3D to encode my rips (of movies I legally own) unless anybody knows of a better option.

Thanks,


#2

Oh that is a great question. I was just assuming plex would transcode h264 MVC to whatever format it needed for the 3-D rendering.

Even though I can't see 3-D, I typically rip 3-D movies to h264 MVC, as that keeps full resolution, does not take up much more space, since I still only have one copy of the movie. I have a mede8er that is able to play 3-D movies, but both my son and wife tell me they can't see 3-D properly with the color glasses, and I don't have a 3-D TV. So really the MVC encoding is just to try and save me the effort of having to rip the movies again in the future.


#3

Does anyone know what happens if you try playing side-by-side in just the standard plex app? Will it appear in a correct format for google cardboard? If so I might convert a few movies, as I am sure my wife and son would appreciate being able to see the Hobbit movies and such in 3-D.


#4

Full SBS or HalfSBS should work fine but I personally don't have any major Hollywood movies i ripped. just short samples used for testing. a MVC sample did not look right to me but honestly 3D gives me a headache quickly because my eyes can't ever focus.

Attached are the samples I used. They are small and not great resolution but should help you confirm before ripping on all your movies.

@docbillnet said:
Does anyone know what happens if you try playing side-by-side in just the standard plex app? Will it appear in a correct format for google cardboard? If so I might convert a few movies, as I am sure my wife and son would appreciate being able to see the Hobbit movies and such in 3-D.

It will play with the two images side by side. I don't know how it might appear in Google Cardboard, never used that.


#5

I am Encoding Wreck-It Ralph in Half-SBS as my first test. I'll report back as I figure out more.


#6

@docbillnet said:
Does anyone know what happens if you try playing side-by-side in just the standard plex app? Will it appear in a correct format for google cardboard? If so I might convert a few movies, as I am sure my wife and son would appreciate being able to see the Hobbit movies and such in 3-D.

My mom plays Penguins of Madagascar [H-SBS] on her TV without issue. In fact, I thought it would be more complicated then simply hitting play, but it wasn't.
While the plex app plays the movie just fine "as-is" (two images, side-by-side) seconds after she starts to play the movie the TV auto-switched to 3D mode.
Here's a site with demo 3D files (h-ou & h-sbs) you can download. http://hdvidzpro.pro/video/3d-lg-demo


#7

@NewPlaza said:

@docbillnet said:
Does anyone know what happens if you try playing side-by-side in just the standard plex app? Will it appear in a correct format for google cardboard? If so I might convert a few movies, as I am sure my wife and son would appreciate being able to see the Hobbit movies and such in 3-D.

My mom plays Penguins of Madagascar [H-SBS] on her TV without issue. In fact, I thought it would be more complicated then simply hitting play, but it wasn't.
While the plex app plays the movie just fine "as-is" (two images, side-by-side) seconds after she starts to play the movie the TV auto-switched to 3D mode.
Here's a site with demo 3D files (h-ou & h-sbs) you can download. http://hdvidzpro.pro/video/3d-lg-demo

Yes. As I understand it the nice part about those two particular formats is all the support for playing them is on your playback software/hardware. The downside is you have a movies that will only playback correctly on hardware that understands that format. If I try to play full side by side on my TV, nothing will play at all because it doesn't support 3-D or resolutions beyond 1080P. If I play half side by side on my TV, it shows up as two movies side by side... Which means if I want to have 3-D videos I have to have 3 copies of each movie. One for 2-D, one for 3-D half side by side, and one for 3-D full side by side... That is 4x the amount of disk space usage.

When you buy a 3-D blueray, you don't have 3 copies of the same movie on the disk. You just have one, and it plays perfectly on your 3-D TV and on your 2-D TV at full resolution. Why is that? Because there is a standard implemented in your 3-D blueray player:

https://en.wikipedia.org/wiki/Multiview_Video_Coding

This is a video encoding that adds a delta layer to the 2-D video for 3-D rendering. You can also rip movies to this format. If you do so, hardware that knows how to read your mkv files and play 3-D will do so. Hardware that doesn't will play 2-D. My experience is this increases disc usage for movies like The Hobbit, by about 30%.

Now the biggest problem with trying to do 3-D with plex, is I don't think it knows how to convert MVC to other 3-D formats. And it is unclear if the Daydream platform knows how to do this either. In which case you are going to need the side-by-side, so plex doesn't have to convert. But how in the world to I tell plex when I watch on my TV I don't want side-by-side, and when I watch on my phone I want side-by-side if and only if I'm wearing a headset?

To my knowledge there is no easy way to tell plex which duplicate video to prefer, especially on a case by case basis... So even if you have the disc space for all that data replication, you'll need to know how the plex team resolved this dilemma, so you know how to populate your files onto the server.


#8

Really for one eyed folks like myself I would be happy if Plex could just play the 2D movie on the right side of the screen. Then I could get the full screen effect from vr, instead of the left half missing effect...