Yet another 3D post . . .

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I’m not going to keep bashing 3D TVs – I think I’ve explained my position on them pretty well.

Instead, I’m going to answer a question from someone else who also likes to bash 3D TVs.  Actually, it wasn’t bashing so much as it was just a general question.  After reading a previous post about 3D, a person wrote to ask why they get “seasick” watching 3D effects.  I don’t get nauseous from 3D – I just don’t perceive it correctly, but I was intrigued by the question and decided to look into the matter a bit more.

In order to understand the “seasickness” effect, it is important to have a basic understanding of what makes 3D, um, 3D.  I’ll skip the details (visit Gizmodo for a more detailed overview), but basically, a pair of glasses feeds each eye with the same image from a slightly different viewpoint, which tricks us into gauging depth.  The trouble with tricking our brains is that it can cause an affliction called cybersickness.