Hacker News: kjeetgill

Desperately Seeking Squircles (2018)

kjeetgill — Sun, 11 Jan 2026 20:08:40 +0000

Article URL: https://www.figma.com/blog/desperately-seeking-squircles/

Comments URL: https://news.ycombinator.com/item?id=46579451

Points: 18

# Comments: 8

Making a game engine based on dynamic signed distance fields

kjeetgill — Sun, 11 Jan 2026 18:06:32 +0000

Article URL: https://www.youtube.com/watch?v=il-TXbn5iMA

Comments URL: https://news.ycombinator.com/item?id=46577956

Points: 1

# Comments: 0

New comment by kjeetgill in "Go's escape analysis and why my function return worked"

kjeetgill — Thu, 11 Dec 2025 14:47:26 +0000

Depending on what your working on, it's actually super nice to know very clearly what lives on the stack vs the heap for performance and compactness reasons. Basically anything that didn't come from malloc or a function calling malloc lives on the stack and doesn't live past the function it was allocated in.

And these days, if you're bothering with C you probably care about these things. Accidentally promoting from the stack to the heap would be annoying.

New comment by kjeetgill in "An interactive introduction to rotors from geometric algebra (2018)"

kjeetgill — Wed, 16 Apr 2025 05:13:21 +0000

I'm pretty soft on this subject but one thing that's always bugged me when I see bivectors represented as a parallelograms is that different coplanar parallelograms of the same area are the same bivector algebraically but visually very different. It just feels confusing when you're trying to learn what it "is".

An interactive introduction to rotors from geometric algebra (2018)

kjeetgill — Wed, 16 Apr 2025 00:01:41 +0000

Article URL: https://marctenbosch.com/quaternions/

Comments URL: https://news.ycombinator.com/item?id=43699883

Points: 37

# Comments: 2

New comment by kjeetgill in "Nuclear fusion: WEST beats the world record for plasma duration"

kjeetgill — Wed, 19 Feb 2025 02:01:45 +0000

Aren't we talking about Waymo? It's not perfect everywhere but it's definitely already better than most people driving around SF. That's pretty full to me.

I guess they haven't been allowed on freeways yet?

New comment by kjeetgill in "Tesla Cybertruck Drives Itself into a Pole, Owner Says 'Thank You Tesla'"

kjeetgill — Tue, 11 Feb 2025 20:48:26 +0000

I mirror the previous posters experience: the Waymos drive better than a good amount of people I know and to the the best of my knowledge haven't had any issues with pedestrians except being attacked by them once or twice.

So I'm not sure what you're referring to? Did I miss a story?

New comment by kjeetgill in "Servo's progress in 2024"

kjeetgill — Wed, 05 Feb 2025 17:50:04 +0000

Because the parent-most post from quertox was:

> That's great news! I thought the project had died and that this meant that V8 was the only serious JavaScript engine for the future.

The person you're responding to was basically clarifying what you want to too.

New comment by kjeetgill in "Questions censored by DeepSeek"

kjeetgill — Tue, 28 Jan 2025 23:06:24 +0000

The free non-logged in chatGPT didn't produce an answer for either for me.

Crafting a Better Shader for Pixel Upscaling [video]

kjeetgill — Mon, 27 Jan 2025 17:51:13 +0000

Article URL: https://www.youtube.com/watch?v=d6tp43wZqps

Comments URL: https://news.ycombinator.com/item?id=42843714

Points: 2

# Comments: 0

Giving Personality to Procedural Animations Using Math [video]

kjeetgill — Mon, 27 Jan 2025 17:50:25 +0000

Article URL: https://www.youtube.com/watch?v=KPoeNZZ6H4s

Comments URL: https://news.ycombinator.com/item?id=42843703

Points: 2

# Comments: 0

New comment by kjeetgill in "Translating 10M lines of Java to Kotlin"

kjeetgill — Sun, 22 Dec 2024 06:49:35 +0000

Stripping out Maps/Lists with boxed keys and values is the first easy thing to do when perf tuning a piece of code. It's so frequently impactful that it's worth doing immediately without any measurement.

You just swap them out with fastutils or trove and call it a day.

New comment by kjeetgill in "Hezbollah pager explosions kill several people in Lebanon"

kjeetgill — Wed, 18 Sep 2024 00:24:33 +0000

Unfortunate typo. I assume you meant ethnically not ethically.

New comment by kjeetgill in "Layman's Guide to Python Built-in Functions"

kjeetgill — Thu, 05 Sep 2024 03:17:21 +0000

The poster is basically proposing something like always doing:

  def all(lis: List[T], mapf: Callable [[T], bool]) -> bool:
    for e in (mapf(l) for l in lis):
       if e is False: return False
    return True

At least that's my take on avoiding Truthy and Falsy via a mapping closure (or function?). But I don't see it solving OPs issue here when lis is empty... So maybe I'm missing something too.

New comment by kjeetgill in "Hiding Linux Processes with Bind Mounts"

kjeetgill — Wed, 24 Jul 2024 19:27:58 +0000

I'm totally with you for processes should probably use glibc/platform API calls, but procfs is nothing short of brilliant and a great validation of the power of the "everything is a file".

Desperately Seeking Squircles (2018)

kjeetgill — Tue, 25 Jun 2024 00:25:58 +0000

Article URL: https://www.figma.com/blog/desperately-seeking-squircles/

Comments URL: https://news.ycombinator.com/item?id=40782818

Points: 15

# Comments: 4

New comment by kjeetgill in "Psychological tricks rich people use to look generous without spending more"

kjeetgill — Mon, 03 Jun 2024 03:22:49 +0000

I'm not sure that's the case. I don't think people are responding to the "redneck in a pick-up" stereotypes as much as that "pavement princess" owner trying to "cosplay" truck culture stereotypes.

Sidenote - I'm finding my vocabulary pretty lacking now that so much stereotyping is done in images and memes.

Exploring and building the LLaMA 3 Architecture

kjeetgill — Tue, 28 May 2024 10:04:00 +0000

Article URL: https://medium.com/@vi.ai_/exploring-and-building-the-llama-3-architecture-a-deep-dive-into-components-coding-and-43d4097cfbbb

Comments URL: https://news.ycombinator.com/item?id=40499122

Points: 2

# Comments: 0

New comment by kjeetgill in "Not all graphs are trees"

kjeetgill — Fri, 03 May 2024 06:32:47 +0000

Huh, TIL - though

> A tree which is not rooted is sometimes called a free tree, although the unqualified term "tree" generally refers to a free tree.

I wonder if that was once the case but no longer is. I'm learning I think of trees mostly through the lens of data structures and not graph theory and I imagine more people do than not.

New comment by kjeetgill in "Not all graphs are trees"

kjeetgill — Thu, 02 May 2024 00:33:13 +0000

Tree's are subsets of DAGs — A DAG where each node has a single parent except for a specific root element which has none.