Graphics/low-level/game programmer. Made www.principle.app. Former Apple Engineer. https://danielchasehooper.com I post more frequently to my x.com/danielchooper account, if you'd rather follow me there.https://bsky.app/profile/danielchooper.bsky.socialhttps://bsky.app/profile/danielchooper.bsky.social/post/3mk422g3uxk2f@marcoarment.bsky.social Is there a way to see how many hours of audio are in the "all" playlist? Would be useful to plan for a long drive I have coming up22 Apr 2026 17:38 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3mk422g3uxk2fhttps://bsky.app/profile/danielchooper.bsky.social/post/3mehihdavcc26I wrote a UI library in C that can lay out 95000 items at 60fps. The library is 566 lines of C, and the application-specific ui code is 998 lines. Works on mac, windows, and linux.09 Feb 2026 22:24 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3mehihdavcc26https://bsky.app/profile/danielchooper.bsky.social/post/3mbzgdv5imk2fNew post: Testing Opus 4.5 For C Programming. TLDR: it's good, even for curmudgeons like me, but you need to play to its strengths. You don't have to use it like a dumb yolo vibecoder. https://danielchasehooper.com/posts/code-agents?sdf=509 Jan 2026 21:19 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3mbzgdv5imk2fhttps://bsky.app/profile/danielchooper.bsky.social/post/3lwcdltet5s2a⭐️ New Article: Snooping On Slow Builds (Using syscalls) https://danielchasehooper.com/posts/syscall-build-snooping/13 Aug 2025 17:21 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lwcdltet5s2ahttps://bsky.app/profile/danielchooper.bsky.social/post/3lvqox52mce26⭐️ New Post: A Fast, Growable Array With Stable Pointers in C https://danielchasehooper.com/posts/segment_array/06 Aug 2025 16:56 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lvqox52mce26https://bsky.app/profile/danielchooper.bsky.social/post/3lsux5soyxk2uOk, here's the new way I recommend to do type safe generics in C. It's cleaner compared to my old function-pointer-cast approach, avoids the undefined behavior everyone is so paranoid about, and doesn't require typeof()01 Jul 2025 05:18 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lsux5soyxk2uhttps://bsky.app/profile/danielchooper.bsky.social/post/3lsuchwn25k2wHacked together a weird spiral Mario game prototype30 Jun 2025 23:08 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lsuchwn25k2whttps://bsky.app/profile/danielchooper.bsky.social/post/3lstmmxsq722zNew Post: How I Write Type Safe Generic Data Structures in C https://danielchasehooper.com/posts/typechecked-generic-c-data-structures/30 Jun 2025 16:37 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lstmmxsq722zhttps://bsky.app/profile/danielchooper.bsky.social/post/3lqs72gze4c2xAs a precursor to public key cryptography, William Jevons said in 1874 "What two numbers multiplied together produce 8616460799? I think it unlikely that anyone but I will ever know" Modern computers find the answer in 0.004s: primes 89681 and 96079 Cool for the time, just needed bigger numbers!04 Jun 2025 16:11 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lqs72gze4c2xhttps://bsky.app/profile/danielchooper.bsky.social/post/3lqqi3snrku2iI like this comment in the source of /usr/bin/dtruss. It provides context with a "Hey dorks, don't mess with my code" kind of energy.03 Jun 2025 23:48 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lqqi3snrku2ihttps://bsky.app/profile/danielchooper.bsky.social/post/3lqfow32sg227Weird time to be someone that likes making tools30 May 2025 16:51 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lqfow32sg227https://bsky.app/profile/danielchooper.bsky.social/post/3lpowctt4tu27Not a good sign when fixing a bug requires editing a file with this at the top21 May 2025 15:32 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lpowctt4tu27https://bsky.app/profile/danielchooper.bsky.social/post/3lpa2p2dhms2cThis was written by a filmmaker about color science, but it applies just as well to the software industry's dependency problem15 May 2025 17:40 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lpa2p2dhms2chttps://bsky.app/profile/danielchooper.bsky.social/post/3lp5rx72k3k2cGithub needs this notification option Tired of getting pinged every time a random person adds their two cents to a Github issue I follow.14 May 2025 19:58 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lp5rx72k3k2chttps://bsky.app/profile/danielchooper.bsky.social/post/3lp3fxc6up22p@flohofwoe.bsky.social Is there a trick to get alpha blending working in sokol-gl, or does that require making my own pipeline? aka: sgl_begin_triangles(); sgl_c4b(255, 0, 0, 127); ... sgl_end();13 May 2025 21:18 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lp3fxc6up22phttps://bsky.app/profile/danielchooper.bsky.social/post/3logold7ofi24It’s wild that iOS still doesn’t have a “lock orientation *except videos*” mode05 May 2025 15:27 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3logold7ofi24https://bsky.app/profile/danielchooper.bsky.social/post/3lmruxxcft32g"C is how a computer actually works"14 Apr 2025 15:30 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lmruxxcft32ghttps://bsky.app/profile/danielchooper.bsky.social/post/3lmja5taclh2tToday I bought an old TV for visual reference. Played Balatro to see how the game's CRT emulation compared to a real Cathode Ray Tube. Sadly details aren't legible on a 13" TV, and the emulation's scanline/phosphor pattern isn't realistic, but it nails the chromatic aberration.11 Apr 2025 04:56 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lmja5taclh2thttps://bsky.app/profile/danielchooper.bsky.social/post/3lklpo6koem2s135,000 Github projects mention "blazing fast" in the readme, but only 3,000 of those mention "benchmark" or "MB/s". So in other words, when you read "blazing fast" think "unserious".17 Mar 2025 17:49 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lklpo6koem2shttps://bsky.app/profile/danielchooper.bsky.social/post/3lkducoyd3y2bMy article titles keep getting longer. I don't know what to make of this.14 Mar 2025 14:51 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lkducoyd3y2bhttps://bsky.app/profile/danielchooper.bsky.social/post/3lkc72kjzg52lI'd guess that 93.732% of JavaScript devs don't know about bitmasks. I used them to speed up my sudoku generator.13 Mar 2025 22:58 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lkc72kjzg52lhttps://bsky.app/profile/danielchooper.bsky.social/post/3lkbvusm5zj2bI designed a new sudoku variant in which every cell has a different shape. Try it here: https://danielchasehooper.com/posts/cracked-sudoku/13 Mar 2025 20:13 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lkbvusm5zj2bhttps://bsky.app/profile/danielchooper.bsky.social/post/3lhkvil3lz22iThanks to everyone that got it to the front page of hacker news https://news.ycombinator.com/item?id=4295869607 Feb 2025 05:45 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lhkvil3lz22ihttps://bsky.app/profile/danielchooper.bsky.social/post/3lhjyjtv3cg2aTIL: Perlin Noise was invented as recently as 1983, and its inventor, Ken Perlin, is still alive. Feels like something that could’ve been invented centuries ago by some French dude.06 Feb 2025 21:07 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lhjyjtv3cg2ahttps://bsky.app/profile/danielchooper.bsky.social/post/3lhhdgdmock2nLive coding an animated SDF shader05 Feb 2025 19:43 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lhhdgdmock2nhttps://bsky.app/profile/danielchooper.bsky.social/post/3lhh4gce46g2dCan't wait to see what happens to all the AI-dependent junior programmers when the next trendy framework drops and their AIs can't help because all the Q&A training data is locked up in Discord.05 Feb 2025 17:38 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lhh4gce46g2dhttps://bsky.app/profile/danielchooper.bsky.social/post/3lheqyauhnk2t⭐️ New Post: Animating Rick and Morty One Pixel at a Time. An interactive guide on making animations on the GPU https://danielchasehooper.com/posts/code-animated-rick/04 Feb 2025 19:08 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lheqyauhnk2thttps://bsky.app/profile/danielchooper.bsky.social/post/3lhcvmx4goe2jI'm publishing a blog post tomorrow that I've been working on over several months. The post has a built in shader editor. I made an animated Rick with it lol04 Feb 2025 01:26 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lhcvmx4goe2jhttps://bsky.app/profile/danielchooper.bsky.social/post/3lafxmmlhko2wHow I made a 3D Modeler in C. Link to full video in replies08 Nov 2024 04:43 +0000at://did:plc:zahjolpaxd6jzzi2re23v7ob/app.bsky.feed.post/3lafxmmlhko2w