iiinova — where your digital self keeps evolving

sleitnick @sleitnick.com · 15/06/2025

UITableLayout is completely broken. It does not rerender unless something is added/removed from its watched hierarchy. In other words, it doesn't resize dynamically if table cells resize. devforum.roblox.com/t/uitablelay...

devforum.roblox.com

UITableLayout does not work

UITableLayout does not redo its layout when the width of cells change. In the video, please note how changing the width of the header cells does not cause a rerender. I have to cut & paste the UITabl...

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sleitnick @sleitnick.com · 11/04/2025

Finally made a low-poly airliner that I'm proud of! I'm not an artist, so even this level of fidelity is super challenging for myself. Excited to rig it up and get it flying in-game soon!

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sleitnick @sleitnick.com · 31/03/2025

Wife: "I'm going to bed" Me: *starts installing linux*

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sleitnick @sleitnick.com · 28/03/2025

With Netflix bombing The Electric State, I highly recommend looking at the source material. Simon Stålenhag's artwork is incredible. I was so sad to see Netflix drop the ball on this. www.simonstalenhag.se/es.html

simonstalenhag.se

www.simonstalenhag.se

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sleitnick @sleitnick.com · 20/03/2025

Work on viable product? ...or play Minecraft? The decisions I face every day are brutal.

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sleitnick @sleitnick.com · 18/03/2025

I'm convinced that many bad programming practices in the Roblox dev community started because people thought they were fun, not because they're actually useful

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sleitnick @sleitnick.com · 13/03/2025

Testing out the dialog system! #RobloxDev

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sleitnick @sleitnick.com · 08/03/2025

"uh yeah I might not like the guy, but republicans are good for the economy!" *market crashes*

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sleitnick @sleitnick.com · 06/03/2025

The Lines of Code plugin has FINALLY received a facelift! This has been scheduled for release for a few months, but was awaiting actors to be usable from plugins.

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sleitnick @sleitnick.com · 04/03/2025

Still thinking about continuing flight lessons... I keep seeing relatively cheap small prop planes (under $50k) & hangar fees at my local airport aren't too bad ($300/mo). Everyone says maintenance is a money sink though. I'd love to fly to RDC at some point!

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sleitnick @sleitnick.com · 03/03/2025

Fun fact: InputObjects are not recreated every input event. This means you can compare the actual InputObject to see if it was the same input, e.g. see if it's the same finger for a touch input during a movement event. This is super useful for multi-touch input. #RobloxDev

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sleitnick @sleitnick.com · 25/02/2025

Do you think in little endian or big endian?

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sleitnick @sleitnick.com · 21/02/2025

Literally driving to Georgia to get some warmth because I'm sick of this Ohio weather. Not even joking. Airbnb already booked.

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sleitnick @sleitnick.com · 21/02/2025

Require Autocomplete update! - Require-by-string when prefixing with :: - Escapes strings & works with weird instance names - Various adjustments and performance improvements #RobloxDev

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sleitnick @sleitnick.com · 19/02/2025

My mental health can be measured inversely proportional to how often and how late I listen to math rock. The Midwest winter weather is killing me.

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sleitnick @sleitnick.com · 17/02/2025

Most ATAN2 functions use YX arguments, e.g. Luau is `math.atan2(y, x)`. In excel, it's XY order. After converting some excel stuff a while back, this caused a bug that I didn't catch for months.

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sleitnick @sleitnick.com · 17/02/2025

Friend from high school on LinkedIn: "I'm so pumped to be reaching these KPIs today! I love Mondays!" Is this the modern day cry for help?

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sleitnick @sleitnick.com · 14/02/2025

Midwest moonlit drives have an eerie but pleasant vibe. Just driving into nothingness.

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sleitnick @sleitnick.com · 13/02/2025

I've been working on a Postgres driver written in Luau for my Koa runtime. It's coming along nicely! Here's an example of inserting rows to a table, and then listing out all the rows.

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sleitnick @sleitnick.com · 07/02/2025

Me: "Nice, my DevEx came in!" Car maintenance: "You mean OUR DevEx"

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sleitnick @sleitnick.com · 06/02/2025

Example of a socket client in Koa. Here I am getting the current time from an NTP server and parsing out the timestamp. The NTP_TIMESTMAP_DELTA converts from the NTP timestamp (Jan 1900) to Unix (Jan 1970)

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sleitnick @sleitnick.com · 05/02/2025

"how to write postgres driver from scratch" was my last Google search. Time to descend into chaos.

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sleitnick @sleitnick.com · 30/01/2025

I feel like I'm going crazy. These AI LLMs produce garbage code and I'm tired of everyone praising them.

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sleitnick @sleitnick.com · 25/01/2025

RIP, at least I tried. I've heard it's hard to get accepted into Nintendo's dev program.

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sleitnick @sleitnick.com · 23/01/2025

Luau running physical infrastructure! (Just my coach lights) Using a Shelly 1PM smart relay to toggle my lights on/off thru its API, and using my Luau runtime to spool up a simple HTTP server to shuttle around requests & also to run the background thread for updating the light state.

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sleitnick @sleitnick.com · 22/01/2025

If the government really cared about our well-being, banning LED headlights would be top priority

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sleitnick @sleitnick.com · 14/01/2025

Yet another Luau runtime? Oh yeah. This time, written in Zig.

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sleitnick @sleitnick.com · 03/01/2025

I don't believe GitHub contributions says anything about someone's productivity. It does, however, highlight life events in funny ways. You can see when said life event happened for me!

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sleitnick @sleitnick.com · 25/12/2024

It's 2am on Christmas day and I'm sitting here installing Zig. Wouldn't want it any other way.

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sleitnick @sleitnick.com · 19/12/2024

My new build! I'm really happy how this turned out. It'll be fully enclosed, so nothing to look at, but I'm hoping for some good performance!

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sleitnick @sleitnick.com · 17/12/2024

Galaxy Warriors was such a fun project. We abandoned it because it didn't fit the "Roblox" mold. Tempted to port it to Godot or Unity eventually!

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sleitnick @sleitnick.com · 15/12/2024

After rummaging through my cable box, I have regrettably come to the conclusion that I must spent $80 on yet another cable.

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sleitnick @sleitnick.com · 12/12/2024

Bringing Luau to the Raspberry Pi

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sleitnick @sleitnick.com · 10/12/2024

Pro-tip: If you're using VS Code and editing index/init files often, you can make them show up as their parent directory name using this VS Code setting.

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sleitnick @sleitnick.com · 09/12/2024

Play Factorio or work on game engine? These decisions weigh heavy on my heart.

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sleitnick @sleitnick.com · 04/12/2024

Parts are starting to come in! Got the fans and PSU somewhat installed for placement last night. Still waiting for motherboard, water cooler, and GPU.

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sleitnick @sleitnick.com · 03/12/2024

Tonight in game engine dev: Working on the code and resource bundler. All Luau code is compiled and bundled into a single file, then compressed using zlib. Keeping resources & code separate will allow for easy updates (e.g. a code-only update will be a much smaller game update patch)

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sleitnick @sleitnick.com · 01/12/2024

Tonight in game engine dev: Gonna try to get "native Luau" working, then start on the first piece of actual gameplay programming!

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sleitnick @sleitnick.com · 27/11/2024

Big milestone in text rendering in my game engine! Before, I rendered each character individually (1 drawcall per character). Now, fonts create a texture atlas & each text label renders in one drawcall. So...I think some actual gameplay programming is next!

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sleitnick @sleitnick.com · 26/11/2024

Over 8000 windmill sprites, all individually driven. 2700 FPS. The windmills take just 1 draw call. The power of GPU instancing! #GameDev

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sleitnick @sleitnick.com · 23/11/2024

Tonight I'm learning OpenGL instancing! For my test, I've got 2500 objects rendering (same object and texture), so 2500 drawcalls. It can only maintain around 70 FPS with that. With instancing, I should be able to get that to 1 drawcall. The tricky part is it's 2D diametric, so order is crucial.

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sleitnick @sleitnick.com · 21/11/2024

I asked different chat AIs to help clarify the difference between task.spawn and task.defer. They all failed. www.youtube.com/watch?v=uQWQ...

youtube.com

Is AI Stupid?

YouTube video by sleitnick

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sleitnick @sleitnick.com · 20/11/2024

Here's a fun one. I wanted to make it so I could use a generic Luau iterator to iterate a file directory. Surprisingly quite simple with Luau's '__iter' metamethod.

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sleitnick @sleitnick.com · 19/11/2024

Tonight was more engine optimizations. I can create 100k game objects in 35ms, which I'm happy about! It used to be around 2 seconds. I also added 'printf' as a global function. Wish Luau would have that by default.

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sleitnick @sleitnick.com · 18/11/2024

Progress on my game over the weekend was slow. Mostly hunting down some memory leaks. But I also got Imgui plugged in, so now I can build out some better debugging tools on screen!

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sleitnick @sleitnick.com · 18/11/2024

My automated coach lights service is no longer dependent on some random web API! The sunrise/sunset times are calculated locally (shout-out NOAA for the math).

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sleitnick @sleitnick.com · 17/11/2024

I ported a ton of NASA solar calculations into a Go library. I don't know what 90% of these are, but it lets me get the sunrise and sunset time without having to ping some random web API anymore! I just give it: Year, month, day, longitude, latitude, and tz offset. And it spits back this struct.

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sleitnick @sleitnick.com · 17/11/2024

Everyone: UTF-8 🙂 Windows: UTF-16 😡

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