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This is what Doom looks like on a holographic display

196 pointsby ttfleeabout 4 years ago

12 comments

hesdeadjimabout 4 years ago
I&#x27;ve built a non-trivial prototype application for the Looking Glass, and once you are past the initial &#x27;cool&#x27; moment the downsides start to rear their head:<p>- Split a 4k signal into 45 view planes means the effective resolution sucks, bad.<p>- Likewise, if your content is complicated at all you need a monster GPU because you are rendering your scenes 45 times <i>per</i> frame, meaning 45 times the draw calls.<p>- Field of view is very limited<p>- The amount of z-depth you can put content in without major blurring is much lower than even this video would indicate.<p>- You need to design your scene so important content never reaches the edges or things look yuck.<p>- Some patterns lead to artifacts like moire, and it can be hard to predict. Your content needs to work around this.<p>- They are (understandably) very expensive.<p>All that said, these things <i>are</i> cool and would be a perfect fit for some use-cases. After the prototype I built was green lit for full production, the decision was made to ditch these displays for all the reasons above.
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bobocheabout 4 years ago
This is autostereoscopic, not holographic. It is however really nice, 10 yrs ago we were playing Quake on a WowVx display from Phillips when not working on autostereoscopic digital signage content. Phillips stopped with as3d and spun off Dimenco which are also selling As3d products, newsight, tridelity, and a few others are around... but all of this is NOT holography. Its high res display with a lenticular sheet splitting viewpoints.
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monsieurbananaabout 4 years ago
This is... way cheaper than I thought it would be at $250(pre-order price?).<p>But I don&#x27;t understand how it works. Seems like... head&#x2F;hand tracking? But then why the weird-looking screen?<p>A bit disappointed, at first I thought it was something similar to those cards we had when we were kids, that change image depending on which angle you look at them (forgot the name).<p>Edit: seems like it&#x27;s a bit of both: <a href="https:&#x2F;&#x2F;docs.lookingglassfactory.com&#x2F;KeyConcepts&#x2F;how-it-works&#x2F;" rel="nofollow">https:&#x2F;&#x2F;docs.lookingglassfactory.com&#x2F;KeyConcepts&#x2F;how-it-work...</a><p>Edit2: Okay so it does work like the cards we had when we were kids. The screen shows 45 different views of the scene at once. I&#x27;m back at being non-disappointed.
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teekertabout 4 years ago
Cool, but, it looks exactly like watching a display with a Wii remote on your head [0, 2007]. What’s so special? Is it actually 3D this time?<p>[0] <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=Jd3-eiid-Uw" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=Jd3-eiid-Uw</a>
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titoabout 4 years ago
Incredible stuff! I first saw Looking Glass Factory [0] at Maker Faire in San Mateo around 2016. It was simple back then, probably 64 x 64 pixels &quot;display&quot;. Imagine a bamboo garden made of 64 LED strips standing up, about 3&#x27;x3&#x27;x3&#x27; cube. Playing screensaver type light displays, entertaining at low res.<p>Then I saw a more recent version at a coffee shop in Providence. They&#x27;re up to legit resolution now, and as a poster said, the light is split so all you&#x27;re doing is moving your head. No head tracking&#x2F;whatever.<p>It&#x27;s one of those things that&#x27;s tough to &quot;get&quot; without seeing yourself. Feels like a definitive piece of the future. I joined their Kickstarter awhile back as well.<p>Go Looking Glass crew!<p>[0] <a href="https:&#x2F;&#x2F;lookingglassfactory.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;lookingglassfactory.com&#x2F;</a>
0-_-0about 4 years ago
Cool, but it&#x27;s not using the correct FOV to make sure the viewer&#x2F;eye is at the focal point. That would look way cooler, I&#x27;ve seen a demo like that before. You get the impression you&#x27;re looking through a window to another world.<p>Edit: the video linked here by <i>teekert</i> does it correctly
alvarlagerlofabout 4 years ago
I wish people would stop calling these holographic
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icegreentea2about 4 years ago
Like other people have said, this looks like a Looking Glass dev unit or something.<p>And here&#x27;s a Linus Tech Tips video of it: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=-EA2FQXs4dw" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=-EA2FQXs4dw</a><p>They have some good footage (though obviously it&#x27;s setup as a hype reel too).<p>Edit: Skip to follow for &quot;beauty shots&quot;: 4:45 and 8:50. 6:12 for funky shot of the &#x27;flattened&#x27; image to give you a sense of what &#x27;trick&#x27; they&#x27;re playing
ekianjoabout 4 years ago
Cool but technically looking glass is not an holographic display.
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elyoboabout 4 years ago
&gt; This is not available to you<p>¯\_(ツ)_&#x2F;¯
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supermattabout 4 years ago
i love these displays, but the smaller one feels too small for anything other than a photo-frame, and the large(r) one is CRAZY expensive (and still too small...)
Black101about 4 years ago
The next wall hackers
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