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Beginning January 2026, all ACM publications will be made open access

https://dl.acm.org/openaccess
1715•Kerrick•18h ago•200 comments

Getting bitten by Intel's poor naming schemes

https://lorendb.dev/posts/getting-bitten-by-poor-naming-schemes/
112•LorenDB•4h ago•57 comments

We pwned X, Vercel, Cursor, and Discord through a supply-chain attack

https://gist.github.com/hackermondev/5e2cdc32849405fff6b46957747a2d28
859•hackermondev•15h ago•323 comments

1.5 TB of VRAM on Mac Studio – RDMA over Thunderbolt 5

https://www.jeffgeerling.com/blog/2025/15-tb-vram-on-mac-studio-rdma-over-thunderbolt-5
406•rbanffy•11h ago•121 comments

Texas is suing all of the big TV makers for spying on what you watch

https://www.theverge.com/news/845400/texas-tv-makers-lawsuit-samsung-sony-lg-hisense-tcl-spying
817•tortilla•2d ago•400 comments

History LLMs: Models trained exclusively on pre-1913 texts

https://github.com/DGoettlich/history-llms
502•iamwil•11h ago•200 comments

From Zero to QED: An informal introduction to formality with Lean 4

https://sdiehl.github.io/zero-to-qed/01_introduction.html
43•rwosync•5d ago•1 comments

Noclip.website – A digital museum of video game levels

https://noclip.website/
194•ivmoreau•7h ago•23 comments

Making Google Sans Flex

https://design.google/library/google-sans-flex-font
47•meetpateltech•4h ago•14 comments

Show HN: Orbit a systems level programming language that compiles .sh to LLVM

https://github.com/SIE-Libraries/orbit
13•TheCodingDecode•1h ago•4 comments

The state of the kernel Rust experiment

https://lwn.net/SubscriberLink/1050174/63aa7da43214c3ce/
96•dochtman•6d ago•48 comments

GPT-5.2-Codex

https://openai.com/index/introducing-gpt-5-2-codex/
486•meetpateltech•15h ago•253 comments

How China built its ‘Manhattan Project’ to rival the West in AI chips

https://www.japantimes.co.jp/business/2025/12/18/tech/china-west-ai-chips/
343•artninja1988•15h ago•377 comments

Reconstructed Commander Keen 1-3 Source Code

https://pckf.com/viewtopic.php?t=18248
77•deevus•6h ago•8 comments

Prompt caching: 10x cheaper LLM tokens, but how?

https://ngrok.com/blog/prompt-caching/
115•samwho•2d ago•16 comments

Property-Based Testing Caught a Security Bug I Never Would Have Found

https://kiro.dev/blog/property-based-testing-fixed-security-bug/
23•nslog•10h ago•3 comments

Designing a Passive Lidar Detector Device

https://www.atredis.com/blog/2025/11/20/designing-a-passive-lidar-detection-sensor
5•speckx•3d ago•0 comments

Show HN: Picknplace.js, an alternative to drag-and-drop

https://jgthms.com/picknplace.js/
297•bbx•2d ago•112 comments

Pingfs: Stores your data in ICMP ping packets

https://github.com/yarrick/pingfs
8•linkdd•5d ago•2 comments

SMB Direct – SMB3 over RDMA – The Linux Kernel Documentation

https://docs.kernel.org/filesystems/smb/smbdirect.html
27•tambourine_man•8h ago•5 comments

2026 Apple introducing more ads to increase opportunity in search results

https://ads.apple.com/app-store/help/ad-placements/0082-search-results
154•punnerud•4h ago•155 comments

Skills for organizations, partners, the ecosystem

https://claude.com/blog/organization-skills-and-directory
266•adocomplete•17h ago•143 comments

Show HN: Stop AI scrapers from hammering your self-hosted blog (using porn)

https://github.com/vivienhenz24/fuzzy-canary
240•misterchocolat•2d ago•164 comments

Top Open Source Authorization Libraries (2024)

https://permify.co/post/open-source-authorization-libraries/
11•mooreds•3d ago•4 comments

Great ideas in theoretical computer science

https://www.cs251.com/
106•sebg•11h ago•21 comments

Firefox will have an option to disable all AI features

https://mastodon.social/@firefoxwebdevs/115740500373677782
427•twapi•15h ago•379 comments

Telegraph chess: A 19th century tech marvel

https://spectrum.ieee.org/telegraph-chess
31•sohkamyung•6d ago•8 comments

Two kinds of vibe coding

https://davidbau.com/archives/2025/12/16/vibe_coding.html
93•jxmorris12•12h ago•62 comments

T5Gemma 2: The next generation of encoder-decoder models

https://blog.google/technology/developers/t5gemma-2/
136•milomg•14h ago•24 comments

I've been writing ring buffers wrong all these years (2016)

https://www.snellman.net/blog/archive/2016-12-13-ring-buffers/
114•flaghacker•2d ago•48 comments
Open in hackernews

Parametric Modeling with Grasshopper

https://baharmon.github.io/basics
40•downboots•7mo ago

Comments

ddkto•7mo ago
It’s hard to believe this is the first time I’ve seen Grasshopper on HN!

Just this morning, a colleague showed me a web app for building option exploration that he had vibe coded on Replit that wrapped around existing core logic in a Grasshopper script hosted in RhinoCompute [1].

The combination of visual programming, the tree data structure and Rhino’s geometry engine has made this the de facto standard for parametric design in architecture (sorry, Dynamo…)

[1] https://github.com/mcneel/compute.rhino3d

downboots•7mo ago
Similar interface idea echoed:

Unity

https://game-ace.com/wp-content/uploads/2020/04/Bolt5.gif

Blender

https://blenderartists.org/uploads/default/original/4X/3/0/c...

Chemcad

https://img.informer.com/screenshots/3390/3390423_1.gif

Even KiCad if we stretch the analogy

Would be good to see this for general programs, or with modular AI agents, or for ODE compartment models.

Also of note: https://worrydream.com/ExplorableExplanations

FormFollowsFunc•7mo ago
Am I wrong in thinking that Grasshopper is procedural modeling and not parametric modeling? Parametric modeing is used in software like Solid Works where you don’t have nodes but have parameters, a constraint system and construction history. Solid Works was developed in the 90s while Grasshopper came out in 2007. Another is example is Pro/Engineer from Parametric Technology Company (PTC) which came out in 1988. Patrik Schumacher, an architect coined the term parametricism in 2008. His employees created node graphs in Grasshopper while he just tweaked the parameters. I wonder if that’s why he came up with the term. Grasshopper has parameters but what makes it different from industrial design CAD is that you construct geometry with a series of nodes i.e. a procedure.
Duanemclemore•7mo ago
Grasshopper doesn't have to be used strictly "procedurally" as you can reference in geometry from Rhino. However, some of us try to work as procedurally as possible - creating everything strictly within Grasshopper if at all possible. It -is- also possible to use it as a very strong parametric design tool. There is no looping exposed to the user in a normal gh script - but used in the way I think is best, you're always applying conditional logic to make the data and operations do what you want.

A quick example - you can use what are called gates and filters in Grasshopper, so you can do things like route faces that meet some criterion you've set through one set of operations and those which don't through another. Then you can use pattern matching or other operations to weave the data back together in the proper order...

dmos62•7mo ago
You seem insightful on this subject. What other parametric design tools, techniques or technologies do you consider noteworthy?
Duanemclemore•7mo ago
Hey, I'm not used to feeling "seen" on HN! Architect, architecture professor, and computational designer here. This is a great first intro to Grasshopper. The links he provides near the top are next steps for those interested in more.

I've found that it opens computational design and programming more broadly up to a broader audience. It has found huge purchase in architecture specifically. I would say this is as much cultural as technical, as architects generally are less rigorously systematic and more global in their thought processes. As people who work largely in the visual domain we are also "visual learners" so to speak.

I first started dipping my toe into Grasshopper in about 2010, and feel that I was fairly expert by about 2015. SHAMELESS PLUG [0]. I've used it at a high level since, and taught it extensively.

Most users - almost all for a very long time - used it primarily as a tool to create, draw, and fabricate more crazier geometry easier. And it is certainly good for that. But in using it - and especially in teaching it - I also find that it is excellent to demystify the design process in ways that folks like programmers instinctively understand. That is you have to be able to break complex problems down to a series of atomically small operations, then build those back up to sophisticated outcomes.

Maybe the most valuable aspect of this - both in my practice and teaching - is understanding how to work both as procedurally and parametrically as possible (I'll put more about this under the comment to that end that's already been posted). Many, if not most, of our jewelry pieces are standalone grasshopper files which reference no outside data at all.

Anyway - I have much, much more I could say about: its use in architecture, design, and education; its relation to learning to think and create a rigorous and flexible design process; and more. But it's great to see it here!

[0] Since 2015 my partner and I have run jewelry company X Over Zero - https://xover0.com/ . All of our designs start as my mathematical and geometric explorations, coded in Grasshopper.

p.s. Incidentally I'm also based in the deep south like Mr. Harmon. And - although we must know people in common, sadly this is the first time he's hitting my radar. I'll be emailing him by the end of the night. Thank you OP for bringing him and his work to my attention!

Duanemclemore•7mo ago
If you want to check out the motherlode of other visual programming languages, platforms, etc check out Ivan Reese's Visual Programming Codex.

https://github.com/ivanreese/visual-programming-codex

https://github.com/ivanreese/visual-programming-codex/blob/m...

Although I'm going to have to create a pull request because he doesn't have Flowgorithm on there, which is an excellent tool for teaching the very very first steps of learning to program...

http://flowgorithm.org/

Terrible name, wonderful tool.

msds•7mo ago
It’s fun seeing an uptick of rhino/grasshopper content here lately - two articles in a week?! The McNeel extended universe is a fun place to play around in, and I’ve met lots of great people since I started working on Rhino.
jazzyjackson•7mo ago
Grasshopper is dope. Years ago I used it to pipe in skeleton and RGB mesh data from a Microsoft Kinect and then sent Open Sound Control packets to Pd-extended to trigger sound events with my body. Really great for general purpose event oriented programming

https://youtu.be/VOu3waxAYDw