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Please help me understand VR and 3D

tinkertrontinkertron Posts: 24
Lawnmower Man (or Woman)
edited September 2015 in Samsung Gear VR
So I know the difference between VR and 3D, but it's the 3D part that has me confused. As a kids 3D to me was that you had to wear the blue and red glasses to watch a movie that was recorded by two camera one with a blue tint off set by the one in red tint (pretty much). I made pictures in 3D with a still camera and using special software the combine the two image as one and you just put on your glass. Here's and example of an image. https://s-media-cache-ak0.pinimg.com/originals/c6/fb/24/c6fb24d43b1083259ab644edebe0a529.jpg

Now when it comes to VR I see several places that offer 3D movies for the VR. When I check these out the movies are split into two screen, one of the left and one on the right. Doesn't most of the VR apps out there already split the screen once you play the videos?

In other words how to I take my movies and convert them in 3D? Even YouTube offer videos in 3D for people with VR headsets.

Comments

  • AceHighnessAceHighness Posts: 121
    Back in the day there was no possibility to send truly separate images to each eye, so we used funky tricks like red/cyan glasses.
    This improved with 3d tvs with active shutter glasses, each eye would be covered (fraction of a second) while the other one saw an image 'just for that eye'. With passive glasses it works differently, something with bending light (never really understood the physics behind this one) anyway each eye gets a seperate image.
    The nintendo 3ds uses parallax 3d without glasses, each eye gets its own image but you have to put your face in the exact right spot.

    Now with VR, you get the same as a 3d tv, but much better :) Each eye gets its own image but without any tricks. Not doing the shuttering trick for example gives us much better brightness (double in fact).
    Just like you said, the recording is done with 2 cameras, each with a slightly different viewpoint. All the games on the Gear VR support this stereoscopic 3d and some of the 360 videos are 3D as well, however there is also content (mainly a load of 360 videos) that do not have any 3d effect in them.
  • tinkertrontinkertron Posts: 24
    Lawnmower Man (or Woman)
    @AceHighness or anyone. Is there any special software I would need to rip or convert my movies into 3D for the Samsung Gear VR? If so what are the names? or does the movie apps that are already install take a regular 2D movie and make it into a 3D movie?
  • tinkertrontinkertron Posts: 24
    Lawnmower Man (or Woman)
    Also I want to mention I took a 3D movie that I had back in the day and rip it over to a MP4 movie file and place my 3D (Blue and Red) glasses in the headstone and the movie was awesome! I would like to see if I can do the same to my other 2D movies.
  • g4cg4c Posts: 330
    tinkertron wrote:
    Also I want to mention I took a 3D movie that I had back in the day and rip it over to a MP4 movie file and place my 3D (Blue and Red) glasses in the headstone and the movie was awesome! I would like to see if I can do the same to my other 2D movies.

    That's cool, I'd never thought of using red/blue anaglyph glasses in GearVR.
    Android VR Developer. https://twitter.com/SiliconDroid
  • YeticrabYeticrab Posts: 91
    Virtual Boy (or Girl)
    tinkertron wrote:
    @AceHighness or anyone. Is there any special software I would need to rip or convert my movies into 3D for the Samsung Gear VR? If so what are the names? or does the movie apps that are already install take a regular 2D movie and make it into a 3D movie?

    You can't turn a 2d movie into a 3d movie, unless you're willing to pay a vietnamese sweatshop a few million to do it frame by frame , and can live with the horrible results.

    Real 3d requires that there be two cameras when the movie was shot.
  • mitchellviimitchellvii Posts: 208
    I watched 3D using some special glasses on a 4k LG TV the other day at BestBuy. By far the BEST 3D I've ever seen. It literally felt as if things were suspended in space in front of me. The KEY to great 3D is lots and lots and lots of pixels. Until we get screens way better than the Note 4, we won't experience truly immersive 3D.
  • FantyFanty Posts: 333
    Another absultely important thing for totaly real 3D is lots and lots of frames per second.

    Its definately a H U G E improvement if 3D stuff moves at 60FPS instead of 30FPS.
    Because if it moves at 30FPS, the jidder of the motion just breaks the illusion of that thing beeing real at all.
    At 60FPS stuff moves so smooth that it can make you believe that is real.

    And if you dont believe things jidder at 30 FPS, just watch 60FPS stuff for 1 month and then return to 30FPS. You wont believe anyone can stand the horrible jidder it does. :lol:

    This tool gives a PC user a function that is avaible for very expensive TV:
    http://www.svp-team.com/
    True motion interpolation (no blending as several other tools do). Its the only existing one on PC.
    It works real time, without the need to convert. I use it to watch 2D material at 120FPS or 3D at 60FPS on my projector.
    Avatar at 60FPS and 2 meters wide picture is amazing. ;)

    This site explains how to convert 30FPS into 60FPS videos using the same libery as the above tool.
    http://www.spirton.com/convert-videos-to-60fps/

    Such converted material of course can be played in the oculus cinema at 60FPS.

    I failed to convert 360 degree material however. Need to ask the guy who runs that site above, what must be changed to the script.
    I never thought I'd be so happy to be back here in my own virtual skin.
    Zoe
  • tinkertrontinkertron Posts: 24
    Lawnmower Man (or Woman)
    Well for now I just want to watch 3D movies on the VR headset. I just saw one using FullDive YouTube 3D. I take it that you have to RIP the 3D DVD? Or does take special software or just a dvd ripper?
  • tinkertrontinkertron Posts: 24
    Lawnmower Man (or Woman)
    Alright i am at a lost. As some of you know there are several channels on YouTube that has the option to watch personal 3D videos and some movie trailers. Of course I watch these useing a app, but I also went stright to the channel via PC, downloaded the videos and them moved them to my SD card on my phone and for some reason with wont play like 3D in the theater app that came on the Samsung VR headset, which tell me you need a app that is able to display the 3D video? I saw some pre install 3D movie trailers on the trailer menu like Godzilla and Transformers. Which also leads me to ask what happen to the trailer cause now I get a message stating those trailers are missing from the SD card. WTF?!?
  • tinkertrontinkertron Posts: 24
    Lawnmower Man (or Woman)
    Alright I found the problem and the solution but still don't understand why, but maybe one of you can explain.

    I took some of the other 3D videos I could find online, mostly from YouTube 3D channels, copy and movie them to the SD card under folder Oculus > Movies > Trailers > 3D folder. It seems that this is the only location that will play your 3D videos. Now I know that saving the file in this location is NOT the main reason why it would be able to play from. I think that the video player app that was install only knows to play that type of file from that location on the SD. So it is a special app you would need to be able to play these type of video. Is there an 3D VR app that online that just a standalone player?
  • AshlesAshles Posts: 515
    Hiro Protagonist
    The Youtube 3d videos are side-by-side - that means the video is split into two halves, the left showing what the left eye should see and the right showing what the right should see. (These need to have been filmed/created using two different viewpoints in the first place to create meaningful 3-d)
    If you just watch them on Youtube all you'll see is two different (almost identical) images at the same time.

    If you drop a side-by-side video into the 3-d folder in the Gear SD card, what it tells the video player to do is to 'chop' the video in half and send the left hand to the left eye and right side to right eye so then you are receiving two slightly offset images simultaneously giving you the 3-d efffect.

    This wont work for a normal video as there are not 2 different images in the first place - dropping these into the 3d folder would only chop the image in half and send confusing different images to each eye making it unwatchable.
    tinkertron wrote:
    Now I know that saving the file in this location is NOT the main reason why it would be able to play from.
    This IS the main reason as the software knows to 'chop' videos in this folder in half and send each half to different eyes, whereas in the other folders it just sends a duplicate of the same image to each eye (so you see a meaningful image but without 3-d)
    "Into every life a little fantasy must fall..."
  • tinkertrontinkertron Posts: 24
    Lawnmower Man (or Woman)
    Ashles wrote:
    The Youtube 3d videos are side-by-side - that means the video is split into two halves, the left showing what the left eye should see and the right showing what the right should see. (These need to have been filmed/created using two different viewpoints in the first place to create meaningful 3-d)
    If you just watch them on Youtube all you'll see is two different (almost identical) images at the same time.

    If you drop a side-by-side video into the 3-d folder in the Gear SD card, what it tells the video player to do is to 'chop' the video in half and send the left hand to the left eye and right side to right eye so then you are receiving two slightly offset images simultaneously giving you the 3-d efffect.

    This wont work for a normal video as there are not 2 different images in the first place - dropping these into the 3d folder would only chop the image in half and send confusing different images to each eye making it unwatchable.
    tinkertron wrote:
    Now I know that saving the file in this location is NOT the main reason why it would be able to play from.
    This IS the main reason as the software knows to 'chop' videos in this folder in half and send each half to different eyes, whereas in the other folders it just sends a duplicate of the same image to each eye (so you see a meaningful image but without 3-d)

    So if I simply create a 3D folder any where on the SD card the movie app will notice that it's a 3D movie? I will try it out and see if works.
  • g4cg4c Posts: 330
    Android VR Developer. https://twitter.com/SiliconDroid
  • AshlesAshles Posts: 515
    Hiro Protagonist
    tinkertron wrote:
    Ashles wrote:
    tinkertron wrote:
    Now I know that saving the file in this location is NOT the main reason why it would be able to play from.
    This IS the main reason as the software knows to 'chop' videos in this folder in half and send each half to different eyes, whereas in the other folders it just sends a duplicate of the same image to each eye (so you see a meaningful image but without 3-d)

    So if I simply create a 3D folder any where on the SD card the movie app will notice that it's a 3D movie? I will try it out and see if works.

    What makes you think you could set up a 3-d folder anywhere and it would recognise it? And why would you do that?
    There are already two 3-D folders set up - in the Movies folder and in the Trailers folder. These would be the sensible locations to put any side-by-side 3d video as the software has already been set up to play 3d movies from these folders.
    "Into every life a little fantasy must fall..."
  • AceHighnessAceHighness Posts: 121
    Ashles wrote:
    What makes you think you could set up a 3-d folder anywhere and it would recognise it? And why would you do that?
    There are already two 3-D folders set up - in the Movies folder and in the Trailers folder. These would be the sensible locations to put any side-by-side 3d video as the software has already been set up to play 3d movies from these folders.


    Pretty sure he wrote that because he could not believe the answer he was given (as he denied the possibility himself earlier in the thread).
  • AshlesAshles Posts: 515
    Hiro Protagonist
    Ashles wrote:
    What makes you think you could set up a 3-d folder anywhere and it would recognise it? And why would you do that?
    There are already two 3-D folders set up - in the Movies folder and in the Trailers folder. These would be the sensible locations to put any side-by-side 3d video as the software has already been set up to play 3d movies from these folders.

    Pretty sure he wrote that because he could not believe the answer he was given (as he denied the possibility himself earlier in the thread).

    I'm getting increasingly confused by the OP. I'm not sure how much more thoroughly it can be explained what 3-d is, how it works, and how to play 3-d movies on the Gear VR. (And that 2-d movies can't be magically converted to 3-d by use of some mystical app)
    "Into every life a little fantasy must fall..."
  • tinkertrontinkertron Posts: 24
    Lawnmower Man (or Woman)
    Ashles wrote:
    What makes you think you could set up a 3-d folder anywhere and it would recognise it? And why would you do that?
    There are already two 3-D folders set up - in the Movies folder and in the Trailers folder. These would be the sensible locations to put any side-by-side 3d video as the software has already been set up to play 3d movies from these folders.

    #1 - I didn't see a 3D folder in the My Movies section.
    #2 - I would like to have a 3D folder not only in the trailer section even though I could have moved my movies over there but rather watch it from the My Movie folder.
    Ashles wrote:
    I'm getting increasingly confused by the OP. I'm not sure how much more thoroughly it can be explained what 3-d is, how it works, and how to play 3-d movies on the Gear VR. (And that 2-d movies can't be magically converted to 3-d by use of some mystical app)

    #1 - Leave the forum then, you don't have to stress out over me asking question and try to learn and understand. I think I have finally got the gist of the 3D aspect of it all so stop begin a douche bag.

    #2 - and for all the rest of you who would like to continue on helping me, thank you.

    Are the movies that are 3D that are on blu ray are they active 3D or passive 3D? or does it matter?
  • cyberealitycybereality Posts: 22,414 Oculus Staff
    tinkertron wrote:
    Are the movies that are 3D that are on blu ray are they active 3D or passive 3D? or does it matter?
    Active and passive refer to the type of 3D glasses used (display type) and have nothing to do with how the data is stored on a disc or in a computer file. On the Blu-Ray disc the data is stored in a special codec for 3D called MVC (multi-view-coding), but on a computer the most common format is SBS (side-by-side).
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  • VRisingVRising Posts: 30
    Lawnmower Man (or Woman)
    Ashles wrote:
    Ashles wrote:
    What makes you think you could set up a 3-d folder anywhere and it would recognise it? And why would you do that?
    There are already two 3-D folders set up - in the Movies folder and in the Trailers folder. These would be the sensible locations to put any side-by-side 3d video as the software has already been set up to play 3d movies from these folders.

    Pretty sure he wrote that because he could not believe the answer he was given (as he denied the possibility himself earlier in the thread).

    I'm getting increasingly confused by the OP. I'm not sure how much more thoroughly it can be explained what 3-d is, how it works, and how to play 3-d movies on the Gear VR. (And that 2-d movies can't be magically converted to 3-d by use of some mystical app)

    Not sure if this counts but my uncles TV can convert a 2D movie into 3D in real time and you can then watch it. (with glasses) It's not great 3D but it does work.
  • AceHighnessAceHighness Posts: 121
    VRising wrote:

    Not sure if this counts but my uncles TV can convert a 2D movie into 3D in real time and you can then watch it. (with glasses) It's not great 3D but it does work.

    that 3d is what is called 'totally fake and ***' (no offense lol)

    Post edited by cybereality. Offensive language.
  • tinkertrontinkertron Posts: 24
    Lawnmower Man (or Woman)
    Well from what I been reading about how the image "movie" is display one side of the movie will display this "even" lines and the other side will display the "odd" lines. How hard is it to have the software end part of it split these like it's been describe to me and everyone else? Yeah you might need a fast system to do it, but rending frame by frame should really take my of a standard pc to do this. Yeah it might take 4 to 8 hours to do, but it can be done in a days time to convert a 2D movie into 3D. But enough of that, I don't want to p*ss of the 3D GODS or forum trolls out there.

    I have been able to get my hands on some 3D movies and so far they look awesome.

    I would like to rip my own 3D movies soon. So it's my understand that 3D movies are no longer widely available on DVD. The only place I am able to find 3D version of movies in on Blu-Ray?
  • AshlesAshles Posts: 515
    Hiro Protagonist
    tinkertron wrote:
    #1 - Leave the forum then, you don't have to stress out over me asking question and try to learn and understand. I think I have finally got the gist of the 3D aspect of it all so stop begin a douche bag.

    It's not my issue if you can't comprehend simply explained concepts. You also might want to hold off on the name calling - it's not very grown-up and might get you reported.
    Well from what I been reading about how the image "movie" is display one side of the movie will display this "even" lines and the other side will display the "odd" lines. How hard is it to have the software end part of it split these like it's been describe to me and everyone else? Yeah you might need a fast system to do it, but rending frame by frame should really take my of a standard pc to do this. Yeah it might take 4 to 8 hours to do, but it can be done in a days time to convert a 2D movie into 3D.

    Yeah, you clearly still aren't getting it, to the point I am genuinely wondering if this is deliberate now.
    "Into every life a little fantasy must fall..."
  • tinkertrontinkertron Posts: 24
    Lawnmower Man (or Woman)
    Ashles wrote:
    Yeah, you clearly still aren't getting it, to the point I am genuinely wondering if this is deliberate now.

    Funny how you left this part out
    tinkertron wrote:
    But enough of that, I don't want to p*ss of the 3D GODS or forum trolls out there.

    ***Poof*** be gone troll.
  • AshlesAshles Posts: 515
    Hiro Protagonist
    tinkertron wrote:
    Ashles wrote:
    Yeah, you clearly still aren't getting it, to the point I am genuinely wondering if this is deliberate now.

    Funny how you left this part out
    tinkertron wrote:
    But enough of that, I don't want to p*ss of the 3D GODS or forum trolls out there.

    ***Poof*** be gone troll.

    How exactly am I a troll for responding (more than once) to a question you asked?
    As well as 3-d I think the term 'troll' is also something you don't understand.
    "Into every life a little fantasy must fall..."
  • noannoan Posts: 1
    My "my video" folder did not have a 3D folder until I added either. The instructions given by Oculus actually tell you to add one. Also, DVD Fab is a good program from ripping 3d blurays giving options to rip straight up or convert to side by side and Handbrake (it's free) will convert them to mp4 or whatever you want. For anything off the web...


    For 3D video content, Oculus Cinema supports the side-by-side and top-to-bottom formats. To designate that a file is 3D, create a text file with the same file name as your video and place it in the same directory. For instance, for mymovie.mp4, create a text file mymovie.txt, with the following content:

    {
    "format": "3D"
    }

    Where the format can be any one of:
    “3D” : 3D movie side-by-side
    “3DLR” : 3D movie side-by-side (same as “3D”)
    “3DLRF” : 3D movie side-by-side full screen
    “3DTB” : 3D movie top-to-bottom
    “3DTBF” : 3D movie top-to-bottom full screen
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