Show HN: I built an interactive cloth solver for Apple Vision Pro (youtube.com)
A bit more context - the cloth sim is part of my app, Lungy (https://www.lungy.app). It's designed to be an active meditation / relaxation app, so you can play relaxing instruments in space and immersive breathing exercises. The original Lungy is a breathing app available for iOS, that uses real-time breathing with interactive visuals.
The cloth sim is a Verlet integration, running on a regular grid. For now, I have tried a couple of different cloth scenes - a sort of touch reactive 'pad', where different parts of the cloth are mapped to different sounds and a cloth that blows in sync with breathing. The collision detection is a little bit tricky with the deforming mesh, but seems to work ok overall. Overall, it seems like a cool interaction to explore.
The cloth sim is live on the app store now (and free) - would love to hear feedback from anyone with a Vision Pro.
App Store (Vision Pro): https://apps.apple.com/app/id6470201263
Lungy, original for iOS - https://apps.apple.com/app/id1545223887
86 comments
[ 4.1 ms ] story [ 167 ms ] threadIn the video I am looking at where I want to interact and then using a pinch gesture and the sounds are mapped to different cells of the cloth. By either looking and tapping, or playing directly you can hopefully play your intended sound.
Is that how most vision pro interfaces work?
Very cool sim, but kind of disappointed still. Will build this someday.
Then a friend told me I could just wash everything in cold water. Crisis averted.
It's been fun. It's not too dissimilar to iOS - a lot of spatial capabilities are linked very closely with RealityKit, it's worth looking at the API if you're interested. I was thinking we'd use Metal for rendering, but as I think there are privacy issues with accessing the raw camera data, it's only supported for 'full' spaces, so not the mixed / camera feed + overlay.
Can’t believe this is what $4-5K piece of tech looks like. Wild.
Simple test: can you get a drink out of the fridge while wearing the headset?
If the answer is yes, it's AR.
The problems that "AR glasses" have with operating outside in full daylight are inherent to a class of devices that does not include the Vision Pro. To the extent that the Vision Pro works better outdoors than whatever "AR glasses" OP had in mind, it's because the Vision Pro is a fundamentally different kind of device with wildly different tradeoffs and design goals.
Got it.
AVP is not glasses. It's a headset.
Headsets and glasses are two entirely different product categories.
The simplest common-use definitions are:
* Augmented: combines synthetic and real-world imagery
* Virtual: fully-synthetic imagery
AVP can do both.
AVP is, by all definitions, XR, VR, AR, and mixed reality.
AR with cameras and screens is an implementation detail, with the definition being realtime. You can easily play ping pong with an AVP on.
As far as tracking goes, the AVP has downward facing cameras and a lidar system that presumably works as well in the sun as their phone lidars.
Wild for such a hyped-up technology product. It just shipped and vanished.
Spending time horizontal while not asleep is very unhealthy for your heart, and many other systems in your body.
Why is this?
[0] https://www.betterhealth.vic.gov.au/health/healthyliving/the...
see my other comment for other references: https://news.ycombinator.com/item?id=40549893
Your references are due to sedentary, not laying down. You can have a sedentary life standing in place most of the day. Likewise, the problem is being sedentary, not what position your sedentary in.
The less time that your heart has to fight against pressure/gravity, the weaker that muscle will become. This is pure causation.
https://news.ycombinator.com/item?id=40549893
Never heard of this before, any references?
This is why standing desks are a thing, why an astronaut will lose 30% of his heart-mass after one year on the ISS, and why patients after a long coma have a hard time doing cardio.
edit:
"Cardiac atrophy after bed rest and spaceflight"
https://www.researchgate.net/publication/11883764_Cardiac_at...
"Cardiac atrophy in women following bed rest"
https://pubmed.ncbi.nlm.nih.gov/17379748/
You’re absolutely right that it’s bad for you.
You can imagine what happened :-)
There's no need to pay the extra $3,000 or whatever it is.
I'm very curious to see if more people adopt the AVP for productivity while traveling though. That's what the Quest seems pretty useless for still.
But also for less than singleminded video watching: if you get a text, the notification appears. If you are watching a long-running deployment, you can have a terminal window off to the side to glance at periodically.
And if you want a drink of water or even to get take the glass to the kitchen for a refill, you don’t take the headset off. The passthrough is that good on AVP, where Q3 is sort of functional but very acid trippy with bending geometry when you look around.
Is AVP “worth” 5x as much? IDK. Depends on your income and priorities. But it is certainly a dramatically different experience.
(Q3 is still hands down better for games, BTW)
The cable is also somewhat irritating, mostly in that “a big just landed on me” moment when an arm brushes it.
It is definitely suboptimal and contributes to the AVP’s vibe of absolutely incredible and yet not quite ready for mass market.
All apps are flying blind when you're multitasking: apps can't even use iOS style marker tracking unless you run them in "immersive mode", which makes them the only app running. That combined with no camera access at all, extremely laggy hand tracking, and an inability to do room scale without a constant passthrough make it somehow less capable than a Quest 3.
I bought a Quest 3 after my Vision Pro and it's a legitimately better piece of hardware except for the displays, and passthrough (which is gimped in usage on AVP). Even the lenses are better on the Q3. Meta has a commanding lead in VR after all
I own a Quest 2 and AVP and while the Quest is alright for what it does and regularly gets used (for PC-tethered Beat Saber mainly), I’m on the lookout for a quality dedicated PCVR-oriented replacement that doesn’t break the bank. I don’t see myself buying another Quest in the future unless they add back DisplayPort input or the onboard compute both becomes more powerful and gains the capability to run Steam so I don’t have to buy games from Facebook to play untethered.
I'm fairly certain it's not Meta standing in the way here. My bet is Quest 4 will be able to achieve this but we'll see.
The AVP should have been a powerhouse like the Hololens, and the $3500 price tag didn't exactly scream anything other than enterprise for mass adoption.
[1] I bought them because I had several app ideas for AVP that I wanted to explore, but right after they arrived I promptly signed a new client and couldn’t justify the extra time to learn Swift and AVP dev. I decided to return the AVP before the refund window expired.
[2] I realize the irony of hoping Apple continues to make the AVP when the act of returning mine may end up helping contribute to its downfall.
Apple is very much not having an iPhone moment with Vision Pro: there is no explosion of creativity or a new market rush. And there may never be one.
Apple treated devs like trash for years and now they have a new platform nobody wants to build on. Oops.
Say you slide it over so it's hovering over the edge of your sofa and then you turn gravity on. It seems like you're just a few steps away from what!
You can get detect planes and the mesh geo of the room.
The limiting factor is actually not the sim, but the initial load time for the procedural geometry. I might try adding some subdivisions though..
developers are developing but it's a small clique
i don't think it's regarded as a commercial flop because there's bound to be a gen 2, hopefully by then there are some apps in the app store
but i agree with your characterization that they got away with a flubbed release