The tridimensional effect deeply vary from person to person. WHY? First of all the eye-distance vary
(even if lightly) between one person and another. For this reason a guy could see a great 3d effect,
while another guy cool feel 'annoyed', with focusing troubles. Another unfavourable factor is
internet itself: changing the size of the monitor or the resolution, the result varies. Last
obstacle is the visualization distance (in this case the distance between the screen
and the observer). Despite all listed adversities, we've decided to show you
3 samples: we know that somebody will "see right" and will appreciate.