What‘s the difference between HMD and TV 3D?

[Kukulcan]

Let’s take Sammy’s adventure as an example. I first watched it on a 3D TV and the 3D is awesome. The inscreen depth is great and the popouts are impressive.

So watching from some 6 feet away, I can touch a popout fish at arm‘s length. Going closer until the TV covers most of my FOV the popout as well as general depth is still good.

Next I watched on PSVR and nearly no popouts, 3D effect nearly non existant. Same on Cinera Edge. No popout and nearly no 3D effect. I though reducing the image size would help as it would „move the screen farther away“ - nothing.

So would the solution be to actually move the screen farther away? I mean moving it farther away in the virtual display space. Would that even be possible to add depth to the screen itself and as well to the actual content?

Anybody understand what I mean?