5 ms·

Not a true holographic display, it's just lenticular. Same as the Nintendo 3ds that shipped over a decade ago.

by ipsum2 2y ago

Animats 2y ago
That was back when 3D TVs were a thing. The market for 3D displays is small, and the market for 3D displays that give up some 2D image quality is very small.
- PaulHoule 2y ago
  The 3DS had a parallax barrier. Personally I got the 3DS around the time that my presbyopia got bad but I thought the images looked really great with my reading glasses. I was disappointed that they didn't use stereo for Pokémon Sun and Moon but then they would had to have decided if Lusamine's hair formed a sheet or a cone wheras the animation is strangely ambiguous about the issue as it is. Most 3D TVs use a high frame rate panel and shutter glasses, somewhat like Lenny Lipton's (Cornell physics grad who wrote the lyrics for Puff the Magic Dragon) https://en.wikipedia.org/wiki/RealD_3D https://en.wikipedia.org/wiki/RealD_3D which uses a double-pumped projector and a device which electrically rotates polarized light on alternate frames so that circular polarized lenses on the glasses work like the shutter glasses. (I'm a little sad that I never got to see https://en.wikipedia.org/wiki/Dolby_3D https://en.wikipedia.org/wiki/Dolby_3D) You don't lose quality in principle from this scheme but you do lose brightness and the real answer is "it's complicated" when you change the frame rate. Most 3D TV however is in a side-by-side format where half of the horizontal frame is used for one eye and the other half is used for the other eye so you really do lose some horizontal resolution. My best 3D viewer right now is a Meta Quest 3 on which I've watched Space Station 3D and The Rise of Skywalker though sometimes I think about picking up a used 3D TV. If a monitor or TV supports high frame rates you could get 3D for free if it wasn't for the shutter glasses being rather expensive.
  - talldayo 2y ago
    You probably already have a solution for this, but ALVR is amazing for getting Quest hardware (any of them) to do hardware-accelerated wireless streaming: https://github.com/alvr-org/alvr https://github.com/alvr-org/alvr The 120hz refresh rate of those newer displays really opens up when you have a proper desktop GPU to drive them. The past few weeks I've been dusting off my Quest 1 with ALVR over USB and it's great. You can have the goofiest setup (NixOS? GNOME Wayland? Nvidia drivers? Come right in!) and it will translate the Quest's built-in tracking into SteamVR with less than a frame of delay. Gotta love it when that thing you thought was dead is actually pretty usable thanks to sideloading and a hardworking community. If I hadn't just gotten 2 weeks of VTOL VR out of that headset I might have remembered to resent the $400 I spent on it.
    - Version467 2y ago
      Does it work well on Linux now? I’ve been looking for a virtual desktop alternative for a while now, but last time I checked out alvr it still seemed quite unstable.
    - wkat4242 2y ago
      Why alvr? Air link or virtual desktop are easier and work just as well in my experience. And now there's Steam link too. Admittedly I haven't tried alvr for 3 years so maybe I'm wrong. Is there any benefit over the other options?
  - outofpaper 2y ago
    > Most 3D TV however is in a side-by-side format where half of the horizontal frame is used for one eye and the other half is used for the other eye so you really do lose some horizontal resolution. This is not how 3d TVs work, it's only one of the common ways of storing the files. More and more of these threads feel like there's posters in here that are LLM hallucinations...
    - PaulHoule 2y ago
      … and broadcasting them https://www.best-3dtvs.com/what-is-side-by-side-3d/ https://www.best-3dtvs.com/what-is-side-by-side-3d/ SBS is not the only format but it’s a format you are very likely to get, how the TV converts that to a stereo image is the responsibility of the TV.
spondylosaurus 2y ago
The 3D effects on the 3DS were surprisingly good, imo. On all but the "New" models, the sweet spot for positioning yourself was pretty narrow, but if you were in the sweet spot things looked great.
gmurphy 2y ago
To be fair, while it is lenticular, it's a huge upgrade over the 3DS, which only rendered two views (one for each eye) so it only worked from straight on; the Looking Glass display handles a significantly higher number of views (~45?[1]) so you get continual stereo separation and different viewpoints as you rotate the device. Rendering costs are much higher though! [1] https://docs.lookingglassfactory.com/keyconcepts/how-it-works https://docs.lookingglassfactory.com/keyconcepts/how-it-work...

Not a true holographic display, it's just lenticular. Same as the Nintendo 3ds that shipped over a decade ago.

by ipsum2 2y ago

Not a true holographic display, it's just lenticular. Same as the Nintendo 3ds that shipped over a decade ago.

That was back when 3D TVs were a thing. The market for 3D displays is small, and the market for 3D displays that give up some 2D image quality is very small.

PaulHoule 2y ago
The 3DS had a parallax barrier. Personally I got the 3DS around the time that my presbyopia got bad but I thought the images looked really great with my reading glasses. I was disappointed that they didn't use stereo for Pokémon Sun and Moon but then they would had to have decided if Lusamine's hair formed a sheet or a cone wheras the animation is strangely ambiguous about the issue as it is. Most 3D TVs use a high frame rate panel and shutter glasses, somewhat like Lenny Lipton's (Cornell physics grad who wrote the lyrics for Puff the Magic Dragon) https://en.wikipedia.org/wiki/RealD_3D https://en.wikipedia.org/wiki/RealD_3D which uses a double-pumped projector and a device which electrically rotates polarized light on alternate frames so that circular polarized lenses on the glasses work like the shutter glasses. (I'm a little sad that I never got to see https://en.wikipedia.org/wiki/Dolby_3D https://en.wikipedia.org/wiki/Dolby_3D) You don't lose quality in principle from this scheme but you do lose brightness and the real answer is "it's complicated" when you change the frame rate. Most 3D TV however is in a side-by-side format where half of the horizontal frame is used for one eye and the other half is used for the other eye so you really do lose some horizontal resolution. My best 3D viewer right now is a Meta Quest 3 on which I've watched Space Station 3D and The Rise of Skywalker though sometimes I think about picking up a used 3D TV. If a monitor or TV supports high frame rates you could get 3D for free if it wasn't for the shutter glasses being rather expensive.
- talldayo 2y ago
  You probably already have a solution for this, but ALVR is amazing for getting Quest hardware (any of them) to do hardware-accelerated wireless streaming: https://github.com/alvr-org/alvr https://github.com/alvr-org/alvr The 120hz refresh rate of those newer displays really opens up when you have a proper desktop GPU to drive them. The past few weeks I've been dusting off my Quest 1 with ALVR over USB and it's great. You can have the goofiest setup (NixOS? GNOME Wayland? Nvidia drivers? Come right in!) and it will translate the Quest's built-in tracking into SteamVR with less than a frame of delay. Gotta love it when that thing you thought was dead is actually pretty usable thanks to sideloading and a hardworking community. If I hadn't just gotten 2 weeks of VTOL VR out of that headset I might have remembered to resent the $400 I spent on it.
  - Version467 2y ago
    Does it work well on Linux now? I’ve been looking for a virtual desktop alternative for a while now, but last time I checked out alvr it still seemed quite unstable.
  - wkat4242 2y ago
    Why alvr? Air link or virtual desktop are easier and work just as well in my experience. And now there's Steam link too. Admittedly I haven't tried alvr for 3 years so maybe I'm wrong. Is there any benefit over the other options?
- outofpaper 2y ago
  > Most 3D TV however is in a side-by-side format where half of the horizontal frame is used for one eye and the other half is used for the other eye so you really do lose some horizontal resolution. This is not how 3d TVs work, it's only one of the common ways of storing the files. More and more of these threads feel like there's posters in here that are LLM hallucinations...
  - PaulHoule 2y ago
    … and broadcasting them https://www.best-3dtvs.com/what-is-side-by-side-3d/ https://www.best-3dtvs.com/what-is-side-by-side-3d/ SBS is not the only format but it’s a format you are very likely to get, how the TV converts that to a stereo image is the responsibility of the TV.

spondylosaurus 2y ago

The 3D effects on the 3DS were surprisingly good, imo. On all but the "New" models, the sweet spot for positioning yourself was pretty narrow, but if you were in the sweet spot things looked great.

gmurphy 2y ago

To be fair, while it is lenticular, it's a huge upgrade over the 3DS, which only rendered two views (one for each eye) so it only worked from straight on; the Looking Glass display handles a significantly higher number of views (~45?[1]) so you get continual stereo separation and different viewpoints as you rotate the device. Rendering costs are much higher though! [1] https://docs.lookingglassfactory.com/keyconcepts/how-it-works https://docs.lookingglassfactory.com/keyconcepts/how-it-work...