SIMD Crawford 🟣 Profile Banner
SIMD Crawford 🟣 Profile
SIMD Crawford 🟣

@omershapira

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High-functioning millennial ■ NVIDIA Research ■ AI, XR, Robotics & Omniverse ■ VFX⎯Mathematics⎯Electronic Elsewheres ■ Opinions mine, you can't have them ■ he

/dev/brooklyn
Joined July 2009
Don't wanna be here? Send us removal request.
@omershapira
SIMD Crawford 🟣
2 months
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@AlexParkerDC
Alex Parker
2 months
What dense 700-page Pulitzer Prize-winning history book should Chris Nolan adapt for film next?
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@omershapira
SIMD Crawford 🟣
3 years
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@omershapira
SIMD Crawford 🟣
1 year
A cache of Polaroids from the set of HACKERS just dropped. I’m experiencing a lot of feelings about this.
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@omershapira
SIMD Crawford 🟣
5 years
Entitled Goose Game
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@omershapira
SIMD Crawford 🟣
3 years
Mosque in Jaffa having serious glitches in its audio stream and the entire neighborhood sounds like a noise show at Silent Barn
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@omershapira
SIMD Crawford 🟣
5 years
actually it’s called GNU/forced retirement
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@omershapira
SIMD Crawford 🟣
5 years
just realized that “delete this” is valid and correct C++
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@omershapira
SIMD Crawford 🟣
1 year
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@omershapira
SIMD Crawford 🟣
4 years
I’ve been working from a NYC 1BR for 3.5 years now. During this time, I’ve lead projects with 3-30 people involved, often needing lots of discussion, prototyping together and visual communication. it’s difficult. Here are some things I wish I’d been told:
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@omershapira
SIMD Crawford 🟣
3 months
Desktop linux is an experience. I spent weeks without a mic b/c Ubuntu suddenly stopped recognizing it. Then it started again, then over a period of 3 days audio output started drifting towards the left speaker. Today incoming video call audio is just white noise. Exciting times
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@omershapira
SIMD Crawford 🟣
3 years
@meakoopa finally, an explanation of this choice of image
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@omershapira
SIMD Crawford 🟣
3 years
M1 Mac Mini comes out of the box with a free Ryoji Ikeda piece. Bold decision, but I respect it. Well done, everyone!
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@omershapira
SIMD Crawford 🟣
4 years
Great British Bake-Off, except it’s C++ and you have to get 2 random Boost modules to compile with your app. you have 8 hours
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@omershapira
SIMD Crawford 🟣
2 years
Good opportunity as ever to remind that: • The Turing Test was designed to fail humans, not certify non-humans. • COMPUTING MACHINERY AND INTELLIGENCE (1950) by Alan Turing is freely available online, and is still largely undisputed.
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@omershapira
SIMD Crawford 🟣
2 years
Working on a collaborative graphics platform:
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@omershapira
SIMD Crawford 🟣
10 years
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@omershapira
SIMD Crawford 🟣
8 years
Working on GPUs has taught me to stop worrying about one smart, needy child and plan a family of two thousand obedient weasels
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@omershapira
SIMD Crawford 🟣
1 year
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@omershapira
SIMD Crawford 🟣
9 years
Lots of people in my feed mocking this concept. All of them were born with 4 functioning limbs and social mobility http://t.co/o4oj58svZm
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@omershapira
SIMD Crawford 🟣
3 years
Excuse me but what the fuck
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@omershapira
SIMD Crawford 🟣
4 years
youtube-dl, one of the most useful applications if you happen to, you know, use computers, was taken down from GitHub, “because of piracy” (lol). Here’s source in two images
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@omershapira
SIMD Crawford 🟣
6 years
shit mom says: * “neural networks are for losers who are too lazy to do mathematical modeling” * “you better not be solving it with covariance matrices, I did that 30yrs ago” * “SIGGRAPH? yeah, I remember - I just thought they were all dead by now” get her on twitter, twitter
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@omershapira
SIMD Crawford 🟣
3 years
I like my tautologies like I like my tautologies: I like them
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@omershapira
SIMD Crawford 🟣
5 years
every time I hear the word “lab” in a company / coworking space’s name, I quietly replace it with the word “hole” Nike Innovation Hole Columbia Urban Design Hole MIT Media Hole
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@omershapira
SIMD Crawford 🟣
8 years
can't wait for GTA San Francisco where you can take over an Uber ride and kill somebody to resolve a blockchain contract
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@omershapira
SIMD Crawford 🟣
1 year
This man has taught me more in any field of undergraduate math than the professor I had in class. I’m not exaggerating. His books and lectures belong in the library of congress. Thanks, Gil.
@MITMath
MIT Mathematics
1 year
Prof. Gil Strang's last lecture is ... Monday! Watch it via live stream:
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@omershapira
SIMD Crawford 🟣
5 years
*wow*
@mattstark256
Matt Stark
5 years
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@omershapira
SIMD Crawford 🟣
4 years
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@omershapira
SIMD Crawford 🟣
1 year
‘Liminal’ by Leandro Erlich (currently at PAMM) does volumetric clouds the same way Horizon: Forbidden West does
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@omershapira
SIMD Crawford 🟣
6 years
we made GPUs from sand so we can have real time particle systems with sand
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@omershapira
SIMD Crawford 🟣
9 years
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@omershapira
SIMD Crawford 🟣
9 years
Some metaphor about programming http://t.co/iYaGfI5f3W
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@omershapira
SIMD Crawford 🟣
3 years
Omniverse, NVIDIA’s collaborative graphics platform, is now in public beta! This release connects with Maya, Revit, Sketchup, Photoshop, Substance_*, and UE4. We’ve been using Omniverse for our own demos for a few years now. They’re included, too.
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@omershapira
SIMD Crawford 🟣
3 years
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@omershapira
SIMD Crawford 🟣
9 years
tfw the software for your buttonless elevator crashes, definitely not predictable, no http://t.co/NVIushNDXE
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@omershapira
SIMD Crawford 🟣
8 years
WAR IS PEACE FREEDOM IS SLAVERY JAVA UPDATE AVAILABLE
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@omershapira
SIMD Crawford 🟣
5 years
devs: the compiler is slow, we have to pray before adding another #include , once I wrote a templated vector and got a call from con-ed c++ working group: a class is now a MetaCompaction<T,φ, 𓀤> devs: what c++wg: “extern” finally works underwater
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@omershapira
SIMD Crawford 🟣
3 years
@jsmooth995 I’ve never been offended by someone else’s memory
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@omershapira
SIMD Crawford 🟣
4 years
lockdown distraction
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@omershapira
SIMD Crawford 🟣
3 years
Windows now has a graphing calculator. It even has dark mode! Well done, Microsoft! Just one minor detail, folks - This graphic? It’s the implicit surface of A FUCKING CIRCLE. YOUR GRAPHING CALCULATOR, A TOOL FOR VISUAL FUCKING INTUITION, DOESN’T FIX A FUCKING ASPECT RATIO.
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@omershapira
SIMD Crawford 🟣
1 year
Someone ( @chris_whong ) ran the watershed algorithm on walking + commute graphs in NYC, and it's the highest information value visualization I've seen in a long time
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@omershapira
SIMD Crawford 🟣
10 years
Had a dream about HN. Woke up and tried to write down all the details: http://t.co/t63hWL52pt
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@omershapira
SIMD Crawford 🟣
2 years
Today we're announcing Omniverse XR, a VR+AR app for Omniverse: • It's got real-time ray-traced VR. This means soft shadows and real reflections. • It can handle gigantic assets without pre-processing • It works with the Omniverse ecosystem.
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@omershapira
SIMD Crawford 🟣
5 years
everyone who ever submitted a siggraph paper shares the moral responsibility for CATS. we all did this
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@omershapira
SIMD Crawford 🟣
2 years
I’ve been at SIGGRAPH for 4 days and haven’t heard the words “Crpyto”, “NFT” or “Dimes Square” even once
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@omershapira
SIMD Crawford 🟣
4 months
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@omershapira
SIMD Crawford 🟣
3 months
I've neither touched the audio settings nor turned off my PC this entire time. This is a living art installation and I am obliged to act as its' conservator
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@omershapira
SIMD Crawford 🟣
1 year
It's nice that Apple finally gave Meta PMs a roadmap
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@omershapira
SIMD Crawford 🟣
3 years
Thanks in advance for reading. Omer x 1/2
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@omershapira
SIMD Crawford 🟣
1 year
Learned 3 new C++ features today looking at my twitter feed. None have any importance in the grander scheme of things, doesn't exploit processor features or tidy up data arrangement. It's just stuff. Like scrolling Facebook and finding out whatever new bullshit your ex is into
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@omershapira
SIMD Crawford 🟣
1 year
Me writing code: Well this fucking sucks. What the fuck Me deleting code: Haha fuck yeah!!! Yes!!
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@omershapira
SIMD Crawford 🟣
11 months
Turns out hallucinating a whole channel is more stable in production than constructing a difference key after de-spilling translucent and GI-affected surfaces. huh.
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@jon_barron
Jon Barron
11 months
Clever new paper from Netflix: sidestep the hard problem of collecting alpha matte training data by recording in front of a green screen and lighting the subject with only blue+red light. The green channel records alpha, and ML hallucinates real-green.
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@omershapira
SIMD Crawford 🟣
3 years
81yo mom calls me up. “You’re not fucking around with Bitcoin, are you? We didn’t fight wars for this”
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@omershapira
SIMD Crawford 🟣
3 years
😔
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@omershapira
SIMD Crawford 🟣
5 years
so much computational design is largely unexplored 🤯
@RobbyKraft
Robby Kraft
5 years
a lot of winter work is wrapping up! nearing release. here’s a peek 👀
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@omershapira
SIMD Crawford 🟣
3 years
No fucking VR experience will come even close to how immersive this story is
@KristerJohnson
Krister Johnson
3 years
Alfredo Rivera is the greatest storyteller of our time.
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@omershapira
SIMD Crawford 🟣
9 years
do you know what the fuck you're doing
dude I have no idea
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I totally got this
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@omershapira
SIMD Crawford 🟣
2 years
Leaving SIGGRAPH same as every time: Overwhelmed by brilliance and kindness. Never change, computer graphics community.
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@omershapira
SIMD Crawford 🟣
5 years
$55 (Raspberry Pi 4): 4xARM A72, 4GB RAM $100 (Jetson Nano): 4xARM A57 + 128xMaxwell CUDA Cores, 4GB RAM $799 (Mac Mini 2018) 4xi3, 8GB RAM + Storage + Consumer stuff Linux machines are suddenly viable as art computers 😳
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@omershapira
SIMD Crawford 🟣
1 year
NEWS After >2yrs building Omnvierse XR, I've stepped down from leading the effort. We shipped the world's first Raytraced XR engine, first to live-edit USD, and built an incredible team. It's now time for it to focus platform and SDK, but life is short and I have other interests.
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@omershapira
SIMD Crawford 🟣
7 months
Omniverse just merged my last design, so after years of being a collaborator to research, I've now officially moved to NVIDIA Research. I've wanted to contribute to Human-facing AI since undergrad. After years of breadth work in simulation and XR, it's time for more depth.
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@omershapira
SIMD Crawford 🟣
1 year
This paper by is incredible: looking at the heavy baggage picked up by applying the diffusion mindset to diffusion models, rolling up the sleeves saying "math is math" and bringing it down to bare bones. Papers like this should be revered by the community, they memeify knowledge
@eric_heitz
Eric Heitz
1 year
When @_Laurent and I started learning about diffusion models, we were puzzled by the amount of jargon and concepts. So, we derived a model from scratch with our own graphics-people intuitions. Simple derivation, simple implementation, SOTA quality.
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@omershapira
SIMD Crawford 🟣
3 years
Keynote by @mmalex at #HPG2021 hits home painfully. Creators avoid expensive operations to protect their creative flow. They won't admit it; They'll subconsciously classify it as a dead end. Happens in every practice that requires thinking with your hands or HIDs.
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@omershapira
SIMD Crawford 🟣
3 years
It’s half past midnight and I’m debugging CMAKE. not a CMAKE build. DEBUGGING. CMAKE.
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@omershapira
SIMD Crawford 🟣
6 years
raytracing is back neural networks are back *buys discman*
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@omershapira
SIMD Crawford 🟣
5 years
🚨 YOUR ATTENTION PLEASE 🚨 UE4.22 P1 HAS REAL-TIME RAYTRACING AND IS DOWNLOADABLE NOW THIS IS NOT A DRILL
@UnrealEngine
Unreal Engine
5 years
Unreal Engine 4.22 Preview 1 is now available to download. Check out some of the new features and updates being added to #UE4 here: .
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@omershapira
SIMD Crawford 🟣
8 years
you're all idiots. we're all idiots. I'm an idiot. everyone's an idiot.
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@omershapira
SIMD Crawford 🟣
11 months
It’s my birthday! All I humbly request is the contents of your clipboard. No cheating.
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@omershapira
SIMD Crawford 🟣
8 years
so steam has turned into a dating site where you buy strangers gifts with their money, and it's the best conceptual art I've seen in 2015
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@omershapira
SIMD Crawford 🟣
1 year
While introducing the Sand Dune simulation talk (good stuff, go read ), I gave a summary of all other sand sim presentations, summarizing them as “sand papers”. Absolute silence. This is no longer my scene
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@omershapira
SIMD Crawford 🟣
4 years
My 80yo mom calls me up. “Hey, what’s Omniverse? I just read about it in the news” -Yeah, I’ve been working on it for a few years now “Are you sure? Because this thing sounds really good”
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@omershapira
SIMD Crawford 🟣
3 years
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@omershapira
SIMD Crawford 🟣
3 years
Ok but hear me out... Proof of Inkjet
@Pinboard
Pinboard
3 years
What we really need to make the cryptocurrency revolution complete is a popular new coin that requires massive amounts of RAM. Then all components of homemade PCs will be equally unaffordable, and balance will have been restored
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@omershapira
SIMD Crawford 🟣
9 years
when the squad is on point http://t.co/1Lfkf8IB6P
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@omershapira
SIMD Crawford 🟣
4 years
“Roblox was popular among my friends in elementary school”, a coworker says, as I cover myself in leaves hoping to become helpful compost
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@omershapira
SIMD Crawford 🟣
3 years
Common misconception. This is actually how GPUs are born:
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@omershapira
SIMD Crawford 🟣
9 years
For those who don't code, I'll explain: XCode is a spellchecker we use before submitting our ideas to a dystopian superpower and the CIA
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@omershapira
SIMD Crawford 🟣
2 years
Shadertoy deserves an academy award
@Shadertoy
Shadertoy
2 years
Happy and proud to announce that @Shadertoy cofounders @iquilezles and @poljeremias have been awarded the prestigious ACM SIGGRAPH Practitioner Award () for their decade long work to broaden the use and openness of computer graphics and its learning.
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@omershapira
SIMD Crawford 🟣
2 years
Compile-time Wordle in C++20 exprs. This is why we need ethics panels
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@omershapira
SIMD Crawford 🟣
3 years
Lord give me the strength to ignore video compression artifacts, the courage to tackle rendering artifacts, and the wisdom to tell them apart on a video call
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@omershapira
SIMD Crawford 🟣
3 months
@saccharineboi I'd try that but I've grown very fond of my computer successfully booting
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@omershapira
SIMD Crawford 🟣
1 year
Started out the year with STREET FIGHTING MATHEMATICS by Sanjoy Mahajan. Been meaning to get to it for about 15 years now. Short read and full of insight. I’ll probably revisit this book every few years for new tricks. The MIT course is still up:
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@omershapira
SIMD Crawford 🟣
6 years
excited for my SIGGRAPH talk, "The Sun is a Point Light. Fight Me"
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@omershapira
SIMD Crawford 🟣
5 years
so is Anish Kapoor suing the black hole or what
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@omershapira
SIMD Crawford 🟣
3 years
The work done in this 17 minute read to simplify the vaccine code - just enough so a complete fuckwit like myself can get it - is astounding. Well worth a read, even if you’re not a blithering idiot like me
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@omershapira
SIMD Crawford 🟣
6 years
"""ray-tracing""" more like "shade throwing"'.... amirite ladies
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@omershapira
SIMD Crawford 🟣
4 years
@downdogapp Google and Apple are doing such an amazing job explaining to devs how taxation works, you’d think they’d be doing a better job paying taxes
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@omershapira
SIMD Crawford 🟣
6 years
like VR? better still, hate VR? we've set up a sick immersive design internship at NVIDIA. you'll be working with Josef, Morgan and myself, making weird XR interactions. Brilliant portfolio required, not C++ experience.
@CasualEffects
morgan
6 years
Our team is hiring undergrads/Masters for a dream internship. Design AR+VR interfaces in a rolling gam jam all summer at NVIDIA. Canadian students will be mentored by me in Toronto and US students in Durham by @josefspjut . Make images like these real!
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@omershapira
SIMD Crawford 🟣
1 year
Congrats @sightful for finally moving out of stealth. Spacetop is a surprisingly delightful device, and the first long-term use for tethered XR. You really need to try it to understand.
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@omershapira
SIMD Crawford 🟣
8 years
"But are you an Artist first, or Engineer first?" I dunno, are you primarily a carbon life form or a husband father christian
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@omershapira
SIMD Crawford 🟣
2 years
who called it The Turing Test instead of Schrödinger’s Chat
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@omershapira
SIMD Crawford 🟣
10 years
That image is from #NoC . That man on stage is Bruce Sterling. (via @Jausl00s ) Speechless. http://t.co/ZatPSFw7aw
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@omershapira
SIMD Crawford 🟣
5 years
stuck in Istanbul because of a firmware error in an airline ramp controller, touring the halls listening to “The Peripheral” on audiobook, looking for a quiet place to write code. appropriate. @GreatDismal
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@omershapira
SIMD Crawford 🟣
1 year
*slipping the branch predictor a $20* just remember me next time eh
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@omershapira
SIMD Crawford 🟣
1 year
The “Fibers, oh my!” post by Dave Weiler (tl;dr: how to implement an efficient M Core : N Fiber system from scratch) comes down to "how to trick C compilers into replacing the stack, regiters, and instruction ptrs". Can’t say I ever wanted this knowledge
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@omershapira
SIMD Crawford 🟣
3 years
list of things I don’t trust when evaluating color: • other people • whatever viewer you’re using • ffmpeg? no • whatever viewer you just switched to • your monitor • my monitor • your eye, 2min ago • your eyes, now • my eyes? fuck right off • my own brain
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@omershapira
SIMD Crawford 🟣
6 years
something really poetic about making a reference to a painting style which outlasted its creators by several multipliers - with a rule system that has the average longevity of a butterfly. enjoy it now, it’ll be a picasso next week
@waxpancake
Andy Baio
6 years
This stunning illustration by @cyanharlow is pure HTML/CSS. Every element was typed by hand, drawing with only a text editor and Chrome dev tools.
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@omershapira
SIMD Crawford 🟣
4 years
in 2012 @sarahrothberg did that with classic computer vision, drew the fish’s paths of motion and called it “Pablo Pescado”
@amcafee
Andrew McAfee 🇺🇦
4 years
OK, apparently ML can now track individual fish in real time underwater:
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@omershapira
SIMD Crawford 🟣
2 years
caught an absolutely gorgeous tilt-shifting effect created by specular lines reflected from the surface of gently-moving water. The more I look at this video, the more I notice going on.
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@omershapira
SIMD Crawford 🟣
3 years
Sick tone habibi, is that a Speak & Spell through a Space Echo or
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