3D videos aren't entirely easy to produce because there are many things you can get wrong when expecting good results. However, here is a very simple trick to convert YouTube videos to 3D movies (via-webtalks)
- Login your YouTube account and choose an uploaded YouTube video of yours.
- Edit its tag by adding at its end the following piece of code: yt3d:enable=true
- Now, go back to the video link and play it. On the right side of the video you will see an extra option which will let you watch the video in 3D.
To watch 3D YouTube videos, you’ve many options. You can use anaglyph, or red and blue, glasses.
Above is a simple video tutorial to make a 3D glass at home with two permanent marker pens (red and blue).