Ever wondered how you can watch 3D content on a 2D set? Dr Geoff Ogram explains ‘freeviewing’ and the difference between cross eye and parallel viewing.
Do you remember those Magic Eye pictures? By adjusting the way you looked at the specially encoded pictures, a 3D image would emerge. It is a way of seeinmg a 3D image on a regular 2D medium without having to wear glasses. When viewing 3D video on YouTube, one of the options is no-glasses where the viewer can switch between cross-eyed and parallel to see a 3D effect without glasses using the similar viewing method to Magic Eye.