Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Inside Magic Leap

forbes.com

Post reply on HN
Print view View original

161–170 of 220 posts

Re: Inside Magic Leap

#161

Post by [deleted] »

striking wrote: post #154
Nition wrote: post #122

Earlier quoted context omitted.

All I really need personally is glasses that can show me text when I look at someone reminding me what their name is. That Terminator tech - seamless glasses that let you assign and view little annotations on things.

# Conversation with John Smith ## Family * How is his daughter doing in ballet? (guaranteed, last discussed 1m3d ago) * Was his wife's birthday last weekend? (70% certainty, Facebook feed. [Review post]) ## Video games * What is his current rank in League of Legends? (guaranteed, from your LoL friends list) * Has he tried any new champions in League of Legends? (the answer was "yes" 1m3d ago) ## Shared occurrences *…

[deleted]

Re: Inside Magic Leap

#162

Post by Nition »

striking wrote: post #154
Nition wrote: post #122

Earlier quoted context omitted.

All I really need personally is glasses that can show me text when I look at someone reminding me what their name is. That Terminator tech - seamless glasses that let you assign and view little annotations on things.

# Conversation with John Smith ## Family * How is his daughter doing in ballet? (guaranteed, last discussed 1m3d ago) * Was his wife's birthday last weekend? (70% certainty, Facebook feed. [Review post]) ## Video games * What is his current rank in League of Legends? (guaranteed, from your LoL friends list) * Has he tried any new champions in League of Legends? (the answer was "yes" 1m3d ago) ## Shared occurrences *…

Bug report: I selected relate an anecdote but wasn't provided with one. My social facade is failing! John is beginning to suspect I am using The Glasses.

Re: Inside Magic Leap

#163

Post by imh »

kimburgess wrote: post #89
drzaiusapelord wrote: post #79

Earlier quoted context omitted.

Uploadvr demystified this stuff a couple years ago: http://uploadvr.com/magic-leap-how-it-works/ Magic leap is a pair of glasses you wear on your face that displays AR imagery through a clear glass lens. There's a cable leading from these glasses to your pocket where you have a tablet-size device doing all the heavy lifting, most likely using mobile SoC's. Pretty sure you can't run a desktop CPU and GPU on a pocketab…

One important differentiating factor between this and other (consumer) HMD's is the scanning display. The Oculus et al need to render a rectangular matrix of evenly spaced pixels. If you want a larger field of view or higher resolution this comes with an exponential increase in number of pixels. With a high frequency scanning display and eye tracking you are not locked to a static spatial resolution (see https://en.m…

>If you want a larger field of view or higher resolution this comes with an exponential increase in number of pixels.

How does that work? Shouldn't it be just linear in FOV? Or quadratic if you are talking about solid angle? This doesn't seem like one of those things that grows exponentially.

Re: Inside Magic Leap

#164

Post by pault »

awesomerobot wrote: post #123
BatFastard wrote: post #74

Earlier quoted context omitted.

Isn't this what you dream of as a developer, the budget to do things right? Rather then pushing a demo into an actual commercial product?

Yes and no, you want to have a ton of time tinkering in a lab and the room to experiment and fail... but who would know Edison if he didn't eventually ship the lightbulb? Also considering how litigious/secretive things are — it must suck to work on something for so long and be contractually obligated to avoid talking about it in public.

How long was the iphone in development?

Re: Inside Magic Leap

#165

Post by jm4 »

pault wrote: post #139
spyder wrote: post #41

I believe Magic Leap has a new kind of display technology, but the article is pretty bullshit-sounding with statements like this: "Throw out your PC, your laptop and your mobile phone, because the computing power you need will be in your glasses, and they can make a display appear anywhere, at any size you like." Yeah sure, they not only made a new display tech but integrated the computing power of desktops or laptop…

To be fair, if the tracking and resolution is first-in-class, there are a billion business applications that won't require major graphics horsepower. I'm going to buy a vive soon to play around with virtual desktop, but I don't have high hopes for it since I know the resolution isn't there yet. If they can come up with something light weight and high resolution that lets me see the rest of my environment I'm all in.

Don't buy the Vive for virtual desktop unless you don't care about your money. I have the Vive and it's awesome for games. Virtual desktop is cool too, but it's not something you want to use for any length of time. It's like looking at your phone stretched out on a 50 foot screen. VR videos are about the only use. Anything else is maybe just a glimpse into the future. The resolution is too low right now.

Re: Inside Magic Leap

#166

Post by dkersten »

deckard1 wrote: post #137
jerf wrote: post #87

Earlier quoted context omitted.

Bandwidth is not the problem, latency is. Bandwidth can be fixed by throwing more bandwidth at the problem. Cloud gaming has not done all that well; it's right at the edge of feasibility due to latency. VR moves it back off the edge to "unquestionably infeasible". If VR gaming were to take off and become a dominant paradigm it would make cloud gaming even harder to justify.

I had to look it up, but it appears OnLive was shut down in 2015 and patents sold off to Sony. I was completely skeptical at their claims with respect to latency. I never believed they could get the service to work, and for enough people to make it profitable. It appears quite a few people were able to enjoy the service at decent enough framerates. Which is surprising.

I recently tried the PS4's remote play functionality. My friend in another city was able to play my bloodborne, which is a very timing-sensitive game, perfectly fine.

A few weeks ago my cousin ran games at 1080p on an EC2 GPU instance and used Steam's In-Home Streaming to play remotely and it worked perfectly fine.

I think the latency is now there, if you have a fast connection and live relatively close to the datacenter.

Re: Inside Magic Leap

#167

Post by BHSPitMonkey »

jm4 wrote: post #165
pault wrote: post #139

Earlier quoted context omitted.

To be fair, if the tracking and resolution is first-in-class, there are a billion business applications that won't require major graphics horsepower. I'm going to buy a vive soon to play around with virtual desktop, but I don't have high hopes for it since I know the resolution isn't there yet. If they can come up with something light weight and high resolution that lets me see the rest of my environment I'm all in.

Don't buy the Vive for virtual desktop unless you don't care about your money. I have the Vive and it's awesome for games. Virtual desktop is cool too, but it's not something you want to use for any length of time. It's like looking at your phone stretched out on a 50 foot screen. VR videos are about the only use. Anything else is maybe just a glimpse into the future. The resolution is too low right now.

Have you tried adjusting your supersampling settings?

Re: Inside Magic Leap

#168

Post by bobsil1 »

kelsolaar wrote: post #160
bobsil1 wrote: post #155

Earlier quoted context omitted.

Thanks for the paper link. Is there a plausible way to use destructive interference to create true black? I remember patents around this.

Most of the light that is received by the retina in day to day life is highly incoherent thus it is unlikely that you can produce a destructive wavefront for it.

One of their patents mentions using stacked diffraction optical elements. Details unclear:

>[0216] Such may be used to cancel light from the planar waveguides with respect to light from the background or real world, in some respects similar to noise canceling headphones.

http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=H...

Re: Inside Magic Leap

#170

Post by xorxornop »

pfranz wrote: post #100
kimburgess wrote: post #89

Earlier quoted context omitted.

One important differentiating factor between this and other (consumer) HMD's is the scanning display. The Oculus et al need to render a rectangular matrix of evenly spaced pixels. If you want a larger field of view or higher resolution this comes with an exponential increase in number of pixels. With a high frequency scanning display and eye tracking you are not locked to a static spatial resolution (see https://en.m…

Foveated rendering only became relevant when Nvidia recently started supporting Multi-Resolution Shading. As new techniques and tools like this get better support we can be a lot more efficient with lower powered hardware. It was interesting to hear Carmack last year talk about re-introducing interlacing as a way to reduce latency. Although, I'm just reinforcing what you're saying =)

Huh, interlacing is a neat idea to reduce latency, but I'm guessing you'd want a form of intra-frame temporal anti-aliasing, otherwise it might look pretty fugly. Whether or not this would neutralise any latency advantage due to the computational overhead of doing this, I'm not sure...
Post reply on HN