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Comment by ChuckMcM | Hacker News Reader

Fun. I hope they are successful. One of the things that my daughter pointed out about 3D movies is that because they are 3D your brain thinks it should be able to shift the focus but it can't and that 'fight' gets in the way of enjoying the content. My understanding is that light field optics don't have this issue.

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Your daughter will be glad to hear that she's in good company, in noticing the "Vergence-Accommodation conflict"[1] that is unavoidable on two-view stereoscopic displays. You're correct that light field optics don't have this issue -- other options are volumetric displays and "super multi-view" displays (which are, to a certain interpretation, a type of lightfield display).

[1] http://jov.arvojournals.org/article.aspx?articleid=2122611

>One of the things that my daughter pointed out about 3D movies is that because they are 3D your brain thinks it should be able to shift the focus but it can't and that 'fight' gets in the way of enjoying the content.

My two grown daughters and I avoid 3D movies. We have all come to the conclusion that the 2D versions are more enjoyable. Plus our local theater is now digital in 4K. We love that theater experience.

[edit] fixed typo

3D movies are a misnomer, they're actually forced perspective.

Forced perspective refers to optical illusions relying on a particular viewpoint. '3D movies' are stereo pairs.

If that's true about this tech, then it will be awesome. The focus issue is the only thing that kills my enjoyment in 3D movies.

I've not seen many 3D movies, but those I did see were very flat. Like cardboard cut outs. I saw some of the hobbit in 3D and it looked weird. There is no volume to the characters...

Yes, because it's only a 2D stereo image and live in only a single focal plane - so no depth.

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