Youtube recently posted instructions on how to properly post your 3-D videos to play with the YT3D player.
From the Youtube help page:
Putting 3-D content on YouTube
YouTube supports stereo 3D video: video containing two streams, one for each eye. In order for a video to be viewable in 3D on YouTube, it must be filmed in 3D. Depending on the way that you recorded the video, you’ll have to follow one of the following different two steps:
(Recommended) I have a 3D camera, camcorder, mobile phone, or gadget
A 3D camera works by recording video from two side by side cameras, and then outputs frames with images from both cameras. Many 3D cameras place 3D information in the video file itself, which can be detected by YouTube or set manually explained in the Setting up 3D video section below.
I don’t have a 3D device
While having a 3D camera makes creating 3D video a lot simpler, you can still create 3D video for YouTube without one. For more information on how to create 3D video with two side by side cameras, check out our 3D editor guide.
Setting up your 3D video on Youtube
In order for a video to be viewed properly in 3D, YouTube needs specific information, including:
- indicators that identify the video as 3D
- signals that explain how the Left and Right videos are placed in the frame (for example, side-by-side or top and bottom)
If the video was recorded using a 3D camera, it will usually have the above signals (you should see a 3D icon on the bottom right corner of the player). However, if it doesn’t, you’ll need to specify that the video is 3D by following the steps below:
- Log into your YouTube account
- Go to your video once it’s been uploaded
- Click on Edit Video Detail above the video
- Select 3D Video on the right hand side of the banner
- Choose the appropriate placement of the two videos from the various options.
Setting the 3D metadata using tags (ie, “yt3d:enable=LR” or “yt3d:swap=true”) is no longer supported and should not be used for newly uploaded videos.
|1) The video is twice as wide as it should be.||The video is displayed with the same aspect ratio as it was uploaded. If you placed the right and left videos into a single video, make sure you scaled the final video to half it’s width (see image below). This is to comply with 3D video standards and to make sure your video is viewed correctly with 3D devices.|
Scaling example for 3D videos:
4:3 Upload: 16:9 Upload: