Apple's Liquid Glass is prep work for AR interfaces, not just a design refresh

omc345.substack.com

328 points by lightningcable 3 days ago


paxys - 3 days ago

> The move from skeuomorphic design in iOS 6 to the stark minimalism of iOS 7 sparked similar debates about usability and aesthetic merit. [...] Yet within two years, the entire industry had adopted flat design principles, from Google's Material Design to Microsoft's Metro language.

That's quite a rewrite of history considering Windows Phone and Microsoft's Metro interface launched a full three years before Apple's move to a flat design in iOS 7.

xnx - 3 days ago

Also, no evidence that Liquid Glass isn't a bad UI for AR too.

John Carmack writes:

Translucent UI is usually a bad idea outside of movies and non-critical game interfaces.

The early moments of joy are fleeting, while the usability issues remain. Windows and Mac have both been down this road before, but I guess a new generation of designers needs to learn the lessons anew. Sigh.

All of the same issues apply in AR as well. Outside of movies, people do not work out their thoughts on windowpanes or transparent “whiteboards” because of the exact same legibility issues.

Would you prefer a notebook of white sheets, or hundreds of different blurry image backgrounds?

https://x.com/ID_AA_Carmack/status/1932521605340483607

bitpush - 3 days ago

> While the tech press fixated on Apple's relatively quiet AI story at WWDC 2025, the company was executing a more subtle strategy. Rather than engaging in the current LLM arms race (where it's demonstrably behind), Apple doubled down on what it does best: creating compelling user experiences through design and integration.

I cant believe real people actually believe this kind of stuff. The author seems to think tech press alone is fixated on AI story. Apple themselves was all gung-ho about AI last time around. They sold an entire line of iPhones touting the benefits of AI. They even "invented" a brand for their line of offering - Apple Intelligence.

And when it all fell flat, Apple had to apologize and had to (yes, had to) showcase other things. Liquid Glass essentially was a replacement for that. If Apple had anything meaningful to show in AI world, it would have show cased that.

And author seems to think Apple is playing 4D chess. Sometimes the simplest explanation is what is really going on.

MrThoughtful - 3 days ago

Funny, in the comparison image the article shows for the 3 design styles - Skeuomorphic, Flat, Liquid Glass - the Skeuomorphic one looks absolutely best to me:

https://substack-post-media.s3.amazonaws.com/public/images/6...

The items look so much more tangible, and the text is more readable. Everything is easy to grok visually. The flat design looks way more confusing. And the liquid glass one looks even worse.

KaiserPro - 3 days ago

As someone who works with a wide range of AR displays, if this is the reason for the UI change, they've fucked up hard.

Blurring in AR is quite difficult as it requires an accurately aligned image to overlay the world. The point of AR is its just an overlay, you don't need to render whats already there. To make a blur, you need the underlying image, this costs energy, which you don't really have on AR glasses.

samwillis - 3 days ago

This would make sense if there was any indication that AR is going to happen. I would argue that there isn't even the faintest signal that it will.

People do not want invasive glasses, even if they make them as small at normal glasses. I just don't see it becoming anything other than a niche product.

It's like all the moves to voice/audio interfaces powered by AI. They simply won't take off as audio is inherently low bandwidth and low definition. Our eyes are able to see so much more in our peripheral vision, at a much higher bandwidth.

Some would argue that's an indication that AR will happen, but it's still so low deff, and incredibly intrusive, as much as I love the demos and the vision (pun not intended) behind it.

As far as I can see, the only motivation for the visual overall is that they need something to fill the gap until they have some real AI innovations to show. This is a "tick" in the traditional "tick" -> "tock" development and release cycle - a facelift while they work on some difficult re-engineering underneath. But that's not AR, it AI.

Someone1234 - 3 days ago

I've seen this speculation a lot, but that's all it is speculation. Apple has been working on an AR concept for going on 4-5 years now, and as recently as January this year were reported to have given up yet again:

https://www.theverge.com/news/604378/apple-n107-ar-glasses-c...

Yet I see this speculation copied (TechCrunch), copied (MacRumors), copied (Substack), from one article to another with the fervor rising at each one. Yet we never approach anything close to substantive.

I read in 2023 AR is due in 24, then 24 it was 25, and now in 25 it is due in 26. AR also now has something to do with AI because of course it does, and Apple's new blurry UI is something to do with this product 1.5 years out at minimum... Sure.

roughly - 3 days ago

One note on this with regards to the “flat” design - the technical reasoning for that was it decoupled the interface from the screen. Flat designs were all vector, and could scale to any screen or interface size. This has effectively unpinned Apple from fixed screen sizes (I’m genuinely not sure if any two iPhone designs have shared the same pixel counts in the last 5-10 years) and allowed them to scale the interface to any size.

I’m not sure what I think about liquid glass, but I do agree with the premise that it’s being driven by the move towards AR and extending interfaces outside the phone/tablet.

I think another interesting tell here will be the 20th anniversary iPhone, which should be coming in 2027 - the iPhone X set the tone for Apple devices for the next decade (so far), and I’d expect to get a better idea of what Apple’s doing here when they show off that hardware.

yrcyrc - 3 days ago

«If history is any guide, we'll all be using glass-like interfaces within five years, wondering how we ever lived without them». Thanks but no thanks. I’ll keep my current phone until I can’t anymore but that’s it then.

exiguus - 3 days ago

This article presents two speculations: first, that Apple has a strong belief in augmented reality (AR), and second, that the company is adapting its user interface and user experience (UI/UX) design in preparation for AR integration. However, where is the evidence to support these claims?

sneak - 3 days ago

> In augmented reality, interface elements must coexist with the physical world. They can't be opaque rectangles that block your view. They need to be translucent, layered, and contextually aware.

This isn’t true. You’re never going to want your browser, editor, or Slack window to be translucent.

…or your movie playback window, or Instagram, or your ebook reader, for that matter.

partiallypro - 3 days ago

This was obvious from the start. Microsoft tried to do a convergence of design across devices too and it failed. I have a feeling this will be a failure as well, different use cases simply require different designs. Despite all the talent at Apple, I can't see them escaping this reality. I like some of the aspects of Liquid Glass and some of the aspects of it are somewhat mind blowing, but it needs to be toned down a lot. If they want it to truly be a cross device idea it needs to be fleshed out a large amount with some features dropping for some devices, and that's when it gets complicated to keep together.

hnlmorg - 3 days ago

I’m all for a common design language but not at the expense of breaking the UX on devices that aren’t interacted with in the same way.

Or in layman’s terms: Let’s hope this isn’t like Microsoft with Metro, “everything is a smart phone” even when it’s not.

Kiro - 2 days ago

The HN crowd is the worst at predicting things so I wouldn't be surprised if this turns out to be the best decision Apple ever made.

bastawhiz - 3 days ago

> The translucent panels, the layered depth, the environmental responsiveness will all feel like a natural extension of what they already know from their iPhone.

Bullshit. Nobody picked up a Hololens and thought "Oh no, I don't know what to do." Nobody put on a first generation Vision Pro and was clueless how to use it because the UI wasn't skeuomorphic and glass-like. AR has been around for decades and this hasn't been a necessity for anyone, ever.

Simply put: it's not important for AR/VR, and it's definitely not necessary for every other computing form factor to adopt it so that folks are somehow prepared to use AR someday. My laptop isn't AR, don't give me an AR interface because it's nice to be consistent across your product lineup.

The only take this post gets right, as best as I can tell: liquid glass gets stuff wrong, and it'll need to change before shipping.

travisgriggs - 3 days ago

> Flat design emerged when users had internalized touch interactions and no longer needed heavy visual scaffolding.

Huh. I always took the move, which I seem to recall as being led by the Google Material folks, as a strategic move to kneecap Apple's huge graphics advantage on iPhones. Apple's hardware could actually execute aesthetically pleasing "real world" things on screen (shadows, blurs, etc). Whereas the ragtag hoard of Android devices, had only a few devices that could draw pretty things, and at large power consumption. It seemed a genius move that suddenly a gestalt of "uh, let's all just work with squares of color, ya know, like construction paper" emerged out of Google as "the new cool." It was marketed well, and the "eye candy space" had saturated, so Apple was forced to "catch up" after holding out for a few years.

coastalpuma - 3 days ago

The comparison to the evolution of iOS is misleading. With iOS, they introduced users to a new platform by using familiar and appropriate design language on that platform. With the current redesign, they're using design language that is really geared towards AR on non-AR devices. The design is in service of devices that most people don't use and haven't showed much interest in using.

Larrikin - 3 days ago

The liquid glass seems like a way for smaller apps to differentiate themselves visually as flat design was a way to drastically reduce the amount of UI design time needed.

It also seems like a way to try and go directly against things like React Native and Kotlin Multiplatform. The recently announced Swift Java interoperability directly really makes it seem like they think KMP is some kind of threat.

swyx - 3 days ago

well then do it when it's ready, not before??

idk what it is but when a new paradigm comes whether it is AI or AR the bigtech companies always want to ram it down everybody's throats rather than gentle opt-in. its not like they lack enthusiasts who WILL opt in to offer feedback.

you have billions of users, including many normies who just want to get shit done and dont even know that you have keynotes or shareholders to impress and dont care about the translucency of your "glass" when they're trying to call 911[0]

[0]: see talk (https://meyerweb.com/eric/thoughts/2016/01/25/designing-for-...) and tldr (https://hookedoncode.com/2015/02/designing-for-crisis-by-eri...)

steve-atx-7600 - a day ago

Seems like it could be new design fad. Noticed that the info panel on the bottom of an MLB baseball game was translucent. Then, noticed that the bottom button panel on the iPhone X app is also translucent.

wuming2 - 3 days ago

I remember Notes subtly replicating the texture of paper. And text being drawn black, not some shades of gray, with effects to maximize, and not reduce, readability and fidelity. Then Scott Forstall was gone.

ray_ - 3 days ago

> The same pattern appears to be playing out with AI. While competitors race to stuff large language models into everything, Apple is taking a more measured approach. The Liquid Glass design language actually creates opportunities for more contextual AI interactions. Imagine smart suggestions that appear as translucent overlays, or AI-generated content that floats naturally over your existing workflow. The glass metaphor provides a visual framework for AI that feels ambient rather than intrusive.

ksynwa - 3 days ago

This whole post is pure speculation right? "Screens becoming less relevant" sounds like ravings of someone trying to play Nostradamus.

jrm4 - 2 days ago

I'll keep saying it; all this design stuff is goofy and will continue to be goofy as long as everyone in it keeps confusing "science" with "fashion."

Genuinely -- fashion is fine, plaid is in this year, great! Whatever!

But so many bozos think they're doing "science about human behavior" when they do this, and they're not.

exe34 - 3 days ago

I remember when the armchair experts were laughing at us old people for reminiscing about the eye candy of OS X from Tiger to Snow Leopard - no, they told us, the nice looking things are from the past. Now everything needs to be flat. It's better. It's more usable. You're not supposed to know the difference between text and buttons based on sight.

Oh now the shiny is back, but worse.

evantravers - 3 days ago

I 100% agree that this is the strategy that they are taking… but I wonder if the hardware will catch up fast enough to make the bet pay off.

aetherspawn - 3 days ago

Well.. this is going to be fun to re-create in Electron for all those native desktop app wannabes. All those gains in battery life just got thrown away.

https://m.youtube.com/watch?v=IrGYUq1mklk

basisword - 3 days ago

Why is the author acting like they've discovered some big secret? Vision Pro launched over a year ago, includes AR features, and was the precursor the the liquid glass redesign. Vision Pro and AR was the prep work for liquid glass.

cma - 3 days ago

The looking forward part about additive AR glasses won't really work with liquid glass: how will you do refraction without doubling up the unrefracted version passing through?

Maybe it would still work ok in low light.

thenaturalist - 3 days ago

As other comments allude to, there are several factual weaknesses quickly obvious in contrast to the storyline of the article.

Another rather significant historical fact the author completely omits is that the iPhone generated crazy hype among consumer customers [0] and bored the business community.

I think it would still even be graceful to assume the opposite about AR "computing".

Constructing the premise of "this is a precursor of the next big thing" in light of this contrast is rather hard to follow.

[0]: https://www.nytimes.com/2007/06/27/technology/circuits/27pog...

excalibur - 3 days ago

Didn't Microsoft do this whole glass UI thing 20 years ago?

dham - 3 days ago

Where we're not going to need interfaces. It seems like most normal people will not need any type of interface. Glasses or not.

notorandit - 2 days ago

So a design refresh is needed for AR interfaces to work. Interesting!

seydor - 2 days ago

no no , my bet is apple is soon launching physically changing tactile screens that will blob out just like this interface does.

Or that your phone will start shedding tears every time you touch it

eddythompson80 - 3 days ago

I can't be the only person who thinks this whole "liquid glass" thing is a nothing-burger. Just a WWDC25 misdirection by Apple because they got nothing of "major" excitement to the general market this year.

I feel Apple throws a "UI overhaul" WWDC when they want to occupy all the discussion about them with "UI discussion" while why buy themselves more time to work on things. People will spend all their time and effort arguing merits of UI that Apple fully intend to again as soon as they release it.

randomname4325 - 3 days ago

smart glasses is exactly where I saw this interface working and being developed for

ModernMech - 3 days ago

I've seen this "theory" floating around social media. I mean, it makes sense but also Apple has a history of boneheaded UI decisions, so I'm not going to put much weight on it. It reads more like cope because of how poorly the UI has been received. Such apologizing also usually follows Apple's boneheaded decisions. "It's 4D chess, you just don't have the vision that Apple has to understand it. But I do, and here's the plan."

3cats-in-a-coat - 2 days ago

They keep trying to prep everything for AR for years now, the LiDAR on the back of the iPhone is another example. And all this has cluttered the product with nonsense, while they've abandoned its core value. I'm frankly dismayed an intelligent company led by intelligent people could go so astray.

croes - 2 days ago

But why put an AR interface on an non AR hardware?

iamleppert - 3 days ago

I wonder if they will release a transparent frosted glass iPad next?!

scudsworth - 3 days ago

windows vista was prep work for ar interfaces

- 2 days ago
[deleted]
nottorp - 2 days ago

Seriously? I think they just hired a bunch of youngsters with perfect eye sight and they convinced Cook (who probably doesn't use screens that much) that it's the future.

wnevets - 3 days ago

Windows Vista never looked so nice

tropicalfruit - 3 days ago

apple is always innovating new ways to make your old device obsolete

htrp - 3 days ago

So we're waiting for a cheaper to use Vision Pro (Vision SE?)

hk1337 - 3 days ago

No shit. They said in the keynote that the Liquid Glass design update was a result of what they created for the Apple Vision UI. They're making iOS, iPadOS, macOS match the same UI as visionOS.

arathis - 2 days ago

This is utter horseshit.

Get a grip.

The total sales of the Vision are a fucking rounding error compared to the sales of the iPhone.

Glass is neither new nor is it some grand strategic vision.

What an embarrassment.

I_dream_of_Geni - 3 days ago

This just seems like a skeuomorphic design refresh. Which Apple HATED and tore down with prejudice. And then proceeded to replace it with childish, flat, candy-colored icons for kids.... smh

curiousgal - 3 days ago

The same AR they built a product for and flopped? Oh please..

pier25 - 3 days ago

This is nonsense. It will take at least a decade for AR to become mainstream, if it ever happens at all.

XiphiasX - 2 days ago

Liquid Ass

tzury - 3 days ago

Apple's pattern has always been to enter markets later but with more refined, integrated solutions.

They weren't first with MP3 players, smartphones, tablets, or smartwatches - but when they entered, they often redefined those categories. The current AI situation likely follows this same playbook.

Apple's culture of secrecy means we only see what they choose to release.

What's often overlooked is that Apple might be playing a different game entirely.

Tim Cook's measured approach and the company's $100B+ R&D budget suggest they're building something substantial, not scrambling to catch up.

They may be betting that the current LLM race will commoditize, and the real value will come from integration and user experience - areas where Apple traditionally excels.

laborcontract - 3 days ago

The new UI is gorgeous and importantly, delightful.

runjake - 3 days ago

This was initially my hunch, but after using the betas quite a bit, I changed my mind.

The pre-WWDC rumors suggested that iOS and macOS would be refreshed with inspiration from "Apple Vision Pro." However, after using the interface, I don't see much similarity beyond the use of translucency and some of the toolbar shapes.

I had preconceived notions from watching the WWDC videos before trying the new interface, but I didn't really get it until I used it. The videos don't do it justice and fail to provide a genuine feel for the experience.

Keep in mind that much of what you see in the videos consists of marketing renders.

Note: None of this is to claim that AR isn't going to be a thing. I completely believe it will come to dominate.