Hacker News: laszlokorte

New comment by laszlokorte in "Preparing for KDE Plasma's Last X11-Supported Release"

laszlokorte — Tue, 02 Jun 2026 15:57:42 +0000

I know nothing about the detailed technical differences between X11 and Wayland but with Hyprland for me the PIP is working as expected so I assume its not just a Wayland issue but specific to the window manager you are using? Maybe somebody else can explain?

New comment by laszlokorte in "A desktop made for one"

laszlokorte — Mon, 04 May 2026 11:57:09 +0000

Semi-honest question: What do you need a window manager, code editor, chat app, etc for if claude is so awesome that it can do everything for you? Why spend 400$ on making tools that you wont use in any workflow because the only workflow that will be left is prompting and agent to run in a loop

New comment by laszlokorte in "Zed 1.0"

laszlokorte — Thu, 30 Apr 2026 12:57:38 +0000

I think it was even featured and praised in a recent zed blog post

New comment by laszlokorte in "Zed 1.0"

laszlokorte — Wed, 29 Apr 2026 18:30:52 +0000

yes there is a single toggle to disable all AI

New comment by laszlokorte in "Effectful Recursion Schemes"

laszlokorte — Thu, 23 Apr 2026 21:34:14 +0000

Recursion schemes are a topic too few people know about in my opinion. I wrote two simple and interactive introductions. One in Javascript [1] and one in Elixir as Livebook [2]. The Elixir version contains a few more practical examples.

[1]: https://static.laszlokorte.de/recursion-schemes/ [2]: https://github.com/laszlokorte/elixir-recursion-livebook/blo...

New comment by laszlokorte in "Show HN: M. C. Escher spiral in WebGL inspired by 3Blue1Brown"

laszlokorte — Mon, 06 Apr 2026 10:59:35 +0000

The main issue is that the image needs to have a high enough resolution to be sharp at all zoom scales. Currently my images are vector graphics that I rasterize depending on the screen resolution.

The Escher Print Gallery requires even larger scales as it uses a zoom factor of 256 across the image (vs 16 for my images)

Others have solved this by either vectorizing the Print Gallery or even rebuilding the scene as 3D signed distance field that can be sampled via ray marching.[1] The later yields the best result but I did not want to copy it.

[1]: https://www.shadertoy.com/view/Mdf3zM

New comment by laszlokorte in "Show HN: M. C. Escher spiral in WebGL inspired by 3Blue1Brown"

laszlokorte — Mon, 06 Apr 2026 10:44:33 +0000

I have not implemented proper multi-touch controls yet. Currently the gizmos need to be used for zooming, paning and rotating.

I will add multi-touch gestures soon.

New comment by laszlokorte in "Show HN: M. C. Escher spiral in WebGL inspired by 3Blue1Brown"

laszlokorte — Sun, 05 Apr 2026 20:08:43 +0000

Thanks for the suggestion! I added a slow initial auto zoom and updated the up/down arrows to work while being pressed.

New comment by laszlokorte in "Show HN: M. C. Escher spiral in WebGL inspired by 3Blue1Brown"

laszlokorte — Sun, 05 Apr 2026 20:06:17 +0000

I now updated the default view to already show the Escher effect :)

Show HN: M. C. Escher spiral in WebGL inspired by 3Blue1Brown

laszlokorte — Sat, 04 Apr 2026 19:43:54 +0000

The latest 3Blue1Brown video [1] about the M. C. Escher print gallery effect inspired me to re-implement the effect as WebGL fragment shader on my own.

[1]: https://www.youtube.com/watch?v=ldxFjLJ3rVY

Comments URL: https://news.ycombinator.com/item?id=47642601

Points: 176

# Comments: 32

New comment by laszlokorte in "What Is Copilot Exactly?"

laszlokorte — Wed, 01 Apr 2026 17:48:49 +0000

Isn't the line you quoted about asking a real person co-worker?

New comment by laszlokorte in "Combinators"

laszlokorte — Tue, 31 Mar 2026 15:55:14 +0000

Based on other existing material on the topic (like the excellent code_report youtube channel) I once wrote an introduction to combinators and lambda calculus targetted at javascript developers (mostly targetted at my younger self) [1]

In short a combinator is a pure function that accesses only identifiers that are provided as arguments.

Length(x,y) { sqrt(xx + yy) } is not a combinator because it relies on global definitions for plus, times and sqrt.

But foo(x, y, b, u, v) { v(b(u(x), u(y))) } is a combinator because it only composes functions that are given as arguments.

Foo(3,5,+,square,sqrt) would result in the same value as length(3,5) so foo can be regarded as capturing the compositional structure of the euclidean distance calculation.

[1]: https://static.laszlokorte.de/combinators/

New comment by laszlokorte in "Oscar Reutersvärd (2021)"

laszlokorte — Tue, 31 Mar 2026 08:27:38 +0000

I love Eschers works. A few years ago I watched an documentary about his in the cinema, but I can remember the name.

3Blue1Brown just released an amazing video explaining the geometric transformation for Eschers print gallery. This made me try to reimplement the effect as WebGL shader [1].

It was very much fun especially doing it fully on my own just based on the general idea without looking at actual existing implementations. It highlighted for me how in non-linear transformations even small mistakes on my side can have huge negative effects on the final image that are tricky to pin down due to the non-linearity.

[1]: https://static.laszlokorte.de/escher/

New comment by laszlokorte in "TeX Live 2026 is available for download now"

laszlokorte — Fri, 06 Mar 2026 10:54:29 +0000

With typst its fast enough to update the pdf/png/svg preview while you are typing, instead of waiting 0.x seconds when hitting save :)

New comment by laszlokorte in "Typed Assembly Language (2000)"

laszlokorte — Tue, 24 Feb 2026 13:00:50 +0000

Think of types more as physical units to check your calculation. The position on a chess board and on a checker board are both 2d integer vectors but you might or might not want them able to be summed together, the same way that 5 liters and 5 grams are both real numbers but should not be summed.

New comment by laszlokorte in "New layouts with CSS Subgrid"

laszlokorte — Wed, 26 Nov 2025 11:15:32 +0000

If you nest two grids, the rows and columns of two sibling grids are not forced two align.

With subgrid the rows and columns of two sibling grids are aligned with each other by glueing them to the rows and columns of the parent grid.

New comment by laszlokorte in "New layouts with CSS Subgrid"

laszlokorte — Wed, 26 Nov 2025 11:10:59 +0000

With nested flexbox the nested dimensions are not aligned to each other. With grid the items are aligned across both each row AND each column. With subgrid even nested grids can be aligned across nesting levels.

New comment by laszlokorte in "The Future of Programming (2013) [video]"

laszlokorte — Wed, 19 Nov 2025 16:45:53 +0000

My favorite Bret Victor talk ever is „Drawing dynamic visualizations“ [1] that made me try to reverse engineer [2] the demonstrated tool that he sadly never released.

[1]: https://youtu.be/ef2jpjTEB5U?si=S7sYRIDJKbdiwYml

[2]: https://youtube.com/playlist?list=PLfGbKGqfmpEJofmpKra57N0FT...

New comment by laszlokorte in "Lenses in Julia"

laszlokorte — Fri, 31 Oct 2025 00:52:31 +0000

Say you want to do obj.child.foo[3].bar += 2 but without mutation, but instead all the data is immutable and you need to do a deep copy along the path.

Lenses are an embedded dsl for doing this via syntax that reads similar to to the mutable variant. Additionally it allows to compose many of such transformations.

New comment by laszlokorte in "Lenses in Julia"

laszlokorte — Fri, 31 Oct 2025 00:20:40 +0000

Yes functional lenses are very good at transforming between between schematas.

You can think of it as an functional programming based embedded domain specific language for transforming immutable data structures into each other. Sure there are other ways to do it but its like generalized map/filter/reduce class of functions vs doing the same imperatively by hand or in other ways