Just set up AdGuard Home on a new Raspberry Pi for the first time. As someone who has never used a Raspberry Pi before, this whole process of assembling the case, installing the OS, and installing the software took less than 2 hours (I'd expect it to take like a whole weekend). Pleasantly surprised

I don't know. The sheer complexity of this issue (both implementations and the mental overhead of programmers) just to save a few keystrokes makes me feel it's not really worthwhile? It feels more like a fashion when the convinience is debatable? #pldev terts.dev/blog/no-semi...

Haven't done webdev for a while, and it seems (at least some) things are getting better. TIL HTML popover attribute, goodbye to all the previous hacks with an invisible checkbox + label to achieve a "no-js dropdown menu" #webdev #html

Ugh. I've made the same mistake in almost all my docker-compose files. I am only saved because - I don't have any database ports exposed directly via Docker - I have an extra firewall setup at the VPS's web console akselmo.dev/posts/they-b...

TIL "falling factorial": (n)_k = n(n-1)...(n-k+1) It's interesting that n!/(n-k)! is very often seen (pick from n choices, then pick from n - 1 choices, etc), but I didn't know if it has a single notation. en.wikipedia.org/wiki/Falling...

Baby's first Forgejo actions pipeline. Can probably reduce my GitHub Actions usage substantially (the only use case not covered is for Windows runners)

We think endlessly scrolling the timeline is new? Here's a group of kids reading a wirelessly transmitted newspaper in 1938.

TIL that VS Code's SSH functionality maintains a node.js server at the remote, and the server eat 100% CPU power and RAM on my low-end VPS.

This is a pretty nice poster. The integration of vector fields and the Stokes' theorem stuff took me a while to parse, but I'd really love it if someone had presented this information to me this way before. #calculus

I've written a bunch of programming language related projects in the past, and are quite comfortable with this stuff. But if a learning resource dumps me with a BNF and hope me to magically understand the syntax of a new feature, I just can't, or at least it will take me more trouble than worth it.

Fun "temporal" bug in my new path tracer project that only manifested when I set max bounces to a very low value (e.g., 3). Can you guess why?

Timo cosplaying Buddhist monk

Sometimes it is hard to tell whether this is a human troll or the whole text is generated via LLM. Or maybe both. For context: this is a personal project that I don't expect anyone to use. Nevertheless, what this person described is completely bogus

My "No Graphics API" blog post is live! Please repost :) www.sebastianaaltonen.com/blog/no-grap... I spend 1.5 years doing this. Full rewrite last summer and another partial rewrite last month. As Hemingway said: "First draft of everything is always shit".

Just moved away from the keyboard for a minute. Meet the 1000x programmer who can write 1000+ lines in one minute #cat

After all those years, I just can never remember the quotient rule and always derive it from the product rule whenever I need to use it #calculus

I've built a text adventure game engine on top of the C++ Standard. Why? I have no idea. But it's a learning tool with quests and time travel and artifacts and NPC's and XP and ... well, you just have to check it out! cppevo.dev/adventure

It is interesting that many ray tracing APIs (such as Vulkan and OptiX) require 3x4 matrices (rather than 4x4) for affine transformations. Makes me wonder about many usages of 4x4 matrices waste 16 bytes to always store [0, 0, 0, 1]

He rarely vocalize, so this is pretty rare moment to see and catch in video

In case you didn't notice, #WebGPU is most likely available in your browser now!

Cat vs Roomba. Cat: 0 Roomba: 1

New blog post: "Fifty Shades of OOP." Put in a surprising amount of research for this one! lesleylai.info/en/fifty_sha...

This week, we will start reading a new book: "Digital Signals Theory"! www.meetup.com/graphics-pro...

I am reluctant to watch this talk, and I am only watching it now as part of my research for a blog post. But it is actually really good, with (almost) no rants and a lot of historical deep dives. youtu.be/wo84LFzx5nI?...

The Graphics Replicability Stamp Initiative (GRSI, www.replicabilitystamp.org), a community-driven initiative to promote replicability in Graphics research, is seeking volunteers. More details in the 'Volunteering' section of the home page.

I have no word

Built a simple regex engine this week, and also threw together a visualizer site Visualizer website: miniregex.lesleylai.info Repo: codeberg.org/Lesley/minir...

This week, @jbakergraphics.bsky.social will be presenting on his post which explains an application of the inversion method of importance sampling, to generate random numbers that match a given probability density function (PDF). www.meetup.com/graphics-pro...

neugierig.org/software/blo... > apparently both "fetch" vs "pull" commands existed in Git and Mercurial. They agreed that one meant "download the changes" and the other meant "do that and also merge them", but they flipped the meanings! 🤯

Whose cat walks like this?

This makes me think: many generic data structures don’t actually require type-specific code and only need to be generic over data size (unless dealing with non-trivial types). Typical C++ or Rust's monomorphic implementation creates a lot of redundant code. danielchasehooper.com/posts/typech...

Next week, we will continue reading the PBRT book. Note that we change the meeting time to Friday (or Saturday, depending on your timezone) www.meetup.com/graphics-pro...

Just added a “microblog” section to my site for crossposting social media content. I’ve also imported some older posts from here and from old Twitter archived (before I deleted the account). Now I finally don't need to worry about platform decay. lesleylai.info/micro/

A nice intro for color science. It is useful even if you're not interested in CSS, and the same ideas apply to graphics programming as well css-tricks.com/color-everyt...

This article is clickbaity, and I am not sure I agree with the conclusion, but it is pretty informative. TIL one can have arbitrary HTML tags (even without js custom element) www.keithcirkel.co.uk/css-classes-... #webdev

I resonate with this article a lot. I started creating programs simply for the joy of making things, and maybe out of a bit of intellectual curiosity. www.jsbarretto.com/blog/softwar...

I just added another UBlock Origin filter for GitHub Copilot stuff in its UI. M$ keeps adding more of them, and they don't seem to respect their own "Show Copilot" setting once it's disabled. Unfortunately, I don't have a good CI solution for personal projects (yet) gist.github.com/LesleyLai/ae...

I don't even know which AdBlocker filter to use to block this now unless I want to block all warning banners. At least I am migrating away from this hell site now. I started using GitHub shortly after I started learning coding. It feels like the end of an era.

Good read. Quote: > O(n^2) is the sweet spot of badly scaling algorithms: fast enough to make it into production, but slow enough to make things fall down once it gets there. randomascii.wordpress.com/2021/02/16/a...

I am slowly moving my projects to Codeberg. For things that need CI/CD, I am using Codeberg as the main site that mirrors to private GitHub repositories. For future projects, I will probably only use GitHub for private repositories

This book reminds me of the never-finished "The Book of Shaders." A quick skim suggests that they cover similar materials. Definitely something for me to read later liu.diva-portal.org/smash/record...

Published my WebGPU Particle Life simulation online! Obviously it requires WebGPU support, and it's quite resource-demanding, so I've set the particle count to 64k for now. Also it probably doesn't work on mobile; will fix later. Enjoy: lisyarus.github.io/webgpu/parti...

"Why do people say that index out-of-bound and dangling pointers are big problems? It is easy for me to fix." True. But only after you spot them

Me: I'm thinking of writing an interactive blog post on barycentric coordinates. Then I came across this great page with interactive visuals. I guess that's one less blog post to write. observablehq.com/@infowantsto...

Common People (Black Mirror) is a great episode, especially considering what's going on around the world. Unfortunately, I can't finish it since I got too upset watching it. en.wikipedia.org/wiki/Common_...

Next week, we will read "To Early-Z, or Not To Early-Z" www.meetup.com/graphics-pro...

I honestly feel sick watching where part of my field is going. This should be a shitpost. Why isn't this a shitpost. www.oreilly.com/library/view...

It is said that every blogger will write blog posts on how they create their blog. Well, here is another one 😅. I just wrote a little blog post on how I set up a self-hosted comment section for my blog: lesleylai.info/en/self-host...

Made some updates to my old grass renderer after reading a recent blog post on grass rendering. Clumping the grass with noise and adding specular highlights makes it look much better hexaquo.at/pages/grass-...

My @accuconf.bsky.social trip report is online and I'm afraid we have to talk about AI. mropert.github.io/2025/04/10/a...