3D Vision Blog

A normal user's look into the world of 3D Stereo Technologies

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Uploading 3D Videos to YouTube Easier, but Not Entirely Problem Free

July 4th, 2012 · 3 Comments · 3D Movies & Videos


We know that Google has been trying to improve and most of all make more user friendly the upload of 3D videos to YouTube for a while already and while they manage to do quite well in that, they seem to miss some really basic stuff that can result in the 3D video not being displayed properly. It is quite nice and easy to just select from a drop-down box that “This video is already 3D”when uploading a 3D video to YouTube from the Advanced Settings tab under 3D Video (just avoid using the “Please make this video 3D” option as this will use 2D to 3D conversion in order to convert a normal 2D video into a stereoscopic 3D one simulating the feeling of depth).



Then from the second drop-down box right below the first one you choose “Side by side: Left video on the left side” or another type of arrangement form the available ones either Side by Side or Top to Bottom with the correct frame order for left/right eye and when the video uploads you expect that everything will work fine. That however may not happen exactly like you thought it would, as for example if the video you uploaded was 1080p in resolution with full frames for both left and right eye (total resolution of 3840×1080) then the result you’d see in the player may not be the one you would want to see. If you uploaded a 3840×1080 resolution 3D video in Side by Side format, going trough the simple drop-down configuration of the type of the video may not be enough as YouTube will still not show it with the correct aspect ratio and you’d need to fix that in order not to have black bars at the top and bottom of the player…

And here I though that adding extra tags for 3D video uploads is something that we’ve left in the past, but no, you may still need to add the good old yt3d tag to make things work properly and the good news is that it actually still works. In the above real world example I’ve had to add “yt3d:aspect=16:9″ (no need to use the quotes) in order to get the 3D video displayed with the correct aspect ratio in the player, again this aspect ratio fix is intended for when uploading 3D video clips in Side by Side format with 3840×1080 resolution in YouTube. Lower resolution 3D videos and/or clips with horizontally or vertically squashed frames for the left and right eye may not need the extra tag to be displayed correctly, but if you are having trouble with them you may try adding the tag as well.

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Vivid Sydney in 3D, 2012 – High Definition 3D Timelapse Video

June 23rd, 2012 · 3 Comments · 3D Movies & Videos


Here is an interesting stereoscopic 3D timelapse video of the 2012 Vivid Sydney Festival featuring 3D mapped projections onto buildings and light sculptures from around the world. Located between the Rocks & Sydney Opera house at Circular Quay. The video has been shot by Neil Surry and you can ind some other interesting 3D clips in his YouTube channel.

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YouTube Expands Its 2D to 3D Autoconversion Beta Features

April 5th, 2012 · 1 Comment · GeForce 3D Vision


Last year YouTube has introduced a new function allowing users to upload 2D videos and then have them autoconverted from 2D to 3D by YouTube and today this beta functionality has been further expanded. Now every user can select to see an automatic 2D to 3D conversion for short-form videos uploaded in 1080p resolutions, there is no more need for the owner of the clip to select that he wants it autoconverted.



You can activate the 2D-to-3D autoconversion feature by clicking on the Options icon (the one with a gear) in the player and then clicking on the 3D button that will appear on the left. When you activate the 3D autoconversion feature of YouTube you will be able to select from less available resolutions up to 720p. It seems that the 3D button does not yet appear on all 1080p videos, so it may take some time, but you can test with the embedded YouTube video above – it already works. It is a quite different thing however how good the autoconversion to 3D is, it may work well on some videos and not that good on others, so if you are interested you can experiment with multiple videos.

- For more information about the new 2D to 3D autoconversion beta feature…

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