When viewing 3D video, *depth of focus does not change.* That's the issue. 3D br...

lutorm · on June 28, 2010

Thank you for actually spelling out what exactly they were complaining about, and I can see how this would be an issue when viewing a monitor. However, you don't have to go to very large distance until the focal distance is effectively infinite.

So I guess the moral of the story then is to combine the 3D technology with a projection system that puts the image at close to infinity (like http://www.mikesflightdeck.com/Scenery_display_2.htm).

I've played around with this lens approach for flight simulators, and I have to say that having the image near optical infinity makes a much larger impression than you might think. You are actually looking through the screen, not at it. The quality isn't great, but it greatly adds to the feeling of immersion. I think this is more important than 3D, since stereoscopic vision really only works at quite short distances.

thefool · on June 28, 2010

Indeed, the other solution is true holograms, that people have been playing with for years.

Those actually physically have the light reflect to your eye from different positions in the "z" direction.

They seem to have a number of techical problems though that would prevent them from being ubiquitous.