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Replacement of petroleum based products with plant-based materials (2025)

https://onlinelibrary.wiley.com/doi/10.1002/eng2.70108
39•thelastgallon•2h ago•8 comments

Run Qwen 3.8 Flash Next (125B) on consumer hardware (RTX 4090) at 100T/s

https://github.com/Niko1221/Strata
742•snehesht•18h ago•334 comments

We ported the original Doom to SQL

https://cedardb.com/blog/sqldoom/
43•Vaslo•1d ago•5 comments

In the wake of closure, a digital archive of animated materials appears online

https://filmstories.co.uk/news/tippett-studios-in-the-wake-of-its-closure-a-digital-archive-of-an...
109•rdmuser•10h ago•12 comments

A 40ms Go garbage collector pause caused by swap

https://frn.sh/go-gc/
66•shellpipe•6h ago•31 comments

Infidel goes wild

https://blog.zarfhome.com/2026/10/infidel-goes-wild
122•tobr•1d ago•19 comments

A browser-native classic Visual Basic VB6 IDE

https://wieslawsoltes.github.io/VB6/
172•wiso•12h ago•65 comments

The Tao of Backup

http://www.taobackup.com/index.html
111•vntok•2d ago•27 comments

Powerless F1 drivers frustrated by Bahrain F1 software glitch

https://www.motorsport.com/f1/news/horrible-totally-unacceptable-powerless-f1-drivers-frustrated-...
179•llm_nerd•5h ago•119 comments

Turn off Apple Intelligence on macOS 27 and get its disk space back

https://github.com/omlahore/RemoveMacAI
521•privacyisntdead•11h ago•328 comments

Gods in the Classroom: Religion and Education in First Millennium BCE Babylonia

https://www.cambridge.org/core/journals/iraq/article/gods-in-the-classroom-religion-and-education...
16•pseudolus•3d ago•0 comments

Tell HN: Bob Cringely has died

857•paveworld•1d ago•182 comments

Improper redaction reveals Google Data Center water and electricity usage

https://www.1011now.com/2026/09/30/more-questions-than-answers-about-lincolns-google-data-center-...
359•sensanaty•11h ago•464 comments

Self-hosted HTTP tunnels with SSH and Nginx

https://vincent.bernat.ch/en/blog/2026-http-over-ssh
122•renehsz•8h ago•30 comments

Safe Optimistic Lock Coupling

http://databasearchitects.blogspot.com/2026/04/safe-optimistic-lock-coupling.html
5•greghn•3d ago•0 comments

Automating my 35mm film scanning pipeline

https://shannadige.com/blog/darkroom/
67•shannadige•1d ago•48 comments

Watson Jr. memo about CDC 6600 (1963)

https://www.computerhistory.org/revolution/supercomputers/10/33/62
38•mooreds•1d ago•21 comments

Demystifying Tufte's data-ink ratio

https://tuftesrazor.scienceux.org/
31•s4074433•2d ago•10 comments

Interview with Chicken Scheme Maintainer Sjamaan/Peter Bex

https://alexalejandre.com/interviews/peter-bex/
33•veqq•2d ago•7 comments

'Neanderthals Among Us' review

https://www.historytoday.com/archive/review/neanderthals-among-us-peter-sahlins-review
70•pepys•1d ago•59 comments

Xray-core concealed a certificate verification bypass vulnerability

https://github.com/net4people/bbs/issues/672
76•timbill•13h ago•10 comments

All I wanted was a custom domain email

https://jacobg.co/emails-at-jacobg-co/
59•jgx0•13h ago•82 comments

Nearly 200 people under observation after Irkutsk lab worker dies from plague

https://www.themoscowtimes.com/2026/10/02/nearly-200-people-under-observation-after-irkutsk-lab-w...
192•ericmay•4h ago•157 comments

Show HN: Glashütte Trash Clock – A 30-minute pendulum clock made from trash

https://niklasroy.com/gtc/
186•r0r0•3d ago•26 comments

Bill Draper has died

https://www.nytimes.com/2026/09/30/technology/william-draper-dead.html
116•bookofjoe•18h ago•36 comments

What is going on with ceiling fans

https://mcmansionhell.com/post/829127919552151552/what-is-going-on-with-ceiling-fans
280•colinprince•4d ago•249 comments

How to scale intent, quality, and artistry with AI [video]

https://www.youtube.com/watch?v=GLvFTMtw4Jk
76•simonjgreen•22h ago•25 comments

Fixed Points and Strike Mandates (2012)

https://pvk.ca/Blog/2012/02/19/fixed-points-and-strike-mandates/
12•luu•4d ago•1 comments

Homa: The end of TCP for AI clusters [video]

https://www.youtube.com/watch?v=eZ8WWZzoaR0
70•signa11•11h ago•36 comments

Results from the ASIC puzzle

https://blog.janestreet.com/asic-puzzle-results/
85•eru•2d ago•42 comments
Open in hackernews

Parametric Modeling with Grasshopper

https://baharmon.github.io/basics
40•downboots•1y ago

Comments

ddkto•1y 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•1y 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•1y 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•1y 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•1y ago
You seem insightful on this subject. What other parametric design tools, techniques or technologies do you consider noteworthy?
Duanemclemore•1y 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•1y 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•1y 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•1y 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