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Relativty – An open-source VR headset

relativty.com

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Re: Relativty – An open-source VR headset

#221
post #216
post #210

Earlier quoted context omitted.

Then you skip AliExpress and go to AliBaba.

Is that actually better than AliExpress for low quantity orders?

In my experience with Alibaba, vendors would sell a single unit for cheaper but the shipping quotes are higher than AliExpress, but that could just be the vendors I was contacting.

Re: Relativty – An open-source VR headset

#222
post #82

Earlier quoted context omitted.

OT but how is the lag with Oculus Quest + VirtualDesktop? Let's say I wanted to play Half-Life: Alyx.

On my Oculus Quest I have completed a playthrough of Alyx and a few other games of different genres, no issues and no delay whatsoever. It feels magical, in a way that feels like it must be cheating and the spell is going to break anytime... yet it doesn't. To pre-empt a few of the obvious asterisks: - "No latency" is physically impossible. If you play twitchy music rythm games you will indeed manage to notice. - You…

> Every millisecond counts.

Not really sure that follows. For a 20ft room, it only takes a wifi signal 20 nanoseconds to cross it, and an ethernet signal around 30 nanoseconds. Your room would need to be over a hundred miles wide to add a millisecond of delay, disregarding stuff like repeaters.

Re: Relativty – An open-source VR headset

#224
post #108

Earlier quoted context omitted.

There's an AliExpress link in the README of the Github repo. Though, I'd imagine you could use ones from cheaper 'phone-to-face' Google Cardboard-style ones.

Lenses are actually not that irrelevant for this application. There is a huge difference between some cheap plastic and camera-grade glass. You don't want [excessive] chromatic aberrations, or [excessive] "God rays" (the Vive has that effect), or other optical artifacts. Optics is similar to electronics: With high school physics it's all quite simple, but with high school physics a transistor can switch nearly infini…

That's true. I actually have a few cheap card-like gadgets. And they're certainly not fresnel lenses. ;)

Re: Relativty – An open-source VR headset

#225
post #144

Great brand name. Awesome write up. "We made Relativty in my bedroom with a soldering iron and a 3D printer and we expect you to do the same: build it yourself." Soldering SMD components sounds daunting, so kudos to you for this. Not sure why the pedantics about 2K and the price in these comments...

> Soldering SMD components sounds daunting, It really isn't, watching some videos learning some techniques. Practice. The same statement could be made about most things that people aren't familiar with or haven't spent any time working to learn.

As someone who has worked in an electronics lab and done lots of soldering, I can say your setup makes a huge difference. A great setup will make soldering SMD components a breeze, but a bad setup will make it very frustrating. Practice obviously helps but a nice soldering station with some kind of magnification will close the gap a whole lot faster.

Re: Relativty – An open-source VR headset

#226

Earlier quoted context omitted.

On my Oculus Quest I have completed a playthrough of Alyx and a few other games of different genres, no issues and no delay whatsoever. It feels magical, in a way that feels like it must be cheating and the spell is going to break anytime... yet it doesn't. To pre-empt a few of the obvious asterisks: - "No latency" is physically impossible. If you play twitchy music rythm games you will indeed manage to notice. - You…

> Every millisecond counts. Not really sure that follows. For a 20ft room, it only takes a wifi signal 20 nanoseconds to cross it, and an ethernet signal around 30 nanoseconds. Your room would need to be over a hundred miles wide to add a millisecond of delay, disregarding stuff like repeaters.

I think the same room is to have good signal strength to minimize dropped/repeated packets. The transmission time won't be noticeable but the signal to noise ratio may decrease fairly quickly with distance and obstacles.
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