https://folk.computer/ 2026-06-04T04:19:37+00:00 https://folk.computer/ https://folk.computer/_media/logo.png text/html 2025-08-20T22:48:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/akiya?rev=1755730122&do=diff Akiya text/html 2026-05-12T16:29:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/animation?rev=1778603383&do=diff Control: Wish $this is outlined green Claim the animation toy's \ fps is 12 Claim the animation toy's \ frame count is 12 Program: set COLS 3 Wish tag $this is stabilized Wish $this is outlined green Wish $this-display has a canvas with settle 0ms width 1024 height 1024 When display /disp/ has width /displayWidth/ height /displayHeight/ &\ display /disp/ has intrinsics /displayIntrinsics/ &\ the pose library is /poseLib/ &\ the quad library is /quadLib/ &\ the quad… text/html 2025-10-30T23:26:57+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/audio?rev=1761866817&do=diff Youtube video of Tidal Cycle cards Code for the 4 current colored TC cards # TODO: programs.folk0.folk.computer/printed/119,121...123 ---------- sudo apt install mpv jackd alsa-utils sudo adduser folk audio aplay -l to list audio devices, find the one you want text/html 2023-09-29T21:57:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/auto-calibration?rev=1696024643&do=diff Auto-calibration When you're setting up Folk for the first time run: # at the root level of the folk project directory ./folk.tcl setup camera This will allow you to see how much of the table your webcam can see: When you have four AprilTags printed out, in view of the camera, run: text/html 2024-08-09T22:29:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/calibration?rev=1723242561&do=diff Calibration (See Projector-camera calibration section of the ''folk'' README for basic versions of these instructions) 1. Attach your printed AprilTag calibration board to a rigid surface, we recommend a spare piece of cardboard or a clipboard like so: 2. (2. → ???) TODO: video/GIFS of Andrés calibrating folk0 + screenshots of the corresponding steps from text/html 2024-10-21T23:01:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/circle-detector?rev=1729551718&do=diff Circle Detector " This is an adaptation of this gist, thanks Naveen Michaud-Agrawal" * TODO: Replace cameraToProjector with quad translation implementation from virtual-programs/mask-tags.folk * TODO: affix relative codepaths below * Copy the C++ code paths below onto your Folk machine (make sure your directory names match the paths below) text/html 2023-10-16T19:28:56+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/cnc-2023-10-16-postmortem?rev=1697484536&do=diff Post mortem Hmmmm, CNC is hard --- Andrés Cuervo 2023/10/16 16:04 text/html 2023-10-11T22:57:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/cnc?rev=1697065036&do=diff Code https://github.com/jmpinit/projected-toolpath-preview Dev log, Wednesday, October 11, 2023 Checkerboard Noise pattern This was useful for orienting the projector to have it cover the CNC bed. Setup Projection matrix on CNC bed Miscilleneous text/html 2023-10-13T14:46:58+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/fonts?rev=1697208418&do=diff Fonts @cwervo, Friday, October 13, 2023: * Reference this guide for the technical side: Bake A Custom SDF Font! * https://fontlibrary.org/en/search?license=MIT%20(X11)%20License&order= * Added CourierPrimeCode, too thin though for the text editor. text/html 2025-02-14T05:57:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/internals?rev=1739512627&do=diff Internals NOTE: these are internals as I (smj-edison) understand them, not necessarily how things work in practice. main.tcl overview (entry point to system) Lots of setup: * Kill other tcl scripts * Select entry script * Import essential libs: text/html 2025-07-28T14:29:17+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/language-inspiration?rev=1753712957&do=diff Inspirations and historical connections for the folk programming language Note Note: there are more recent, direct folk inspiration papers we reference in the Programming language & DB implementation section of our links page. What follows below is Andrés' attempt to ground our recent (from ~2005 - 2025) citations to the deeper history of programming language design. text/html 2023-09-26T03:44:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/manual-calibration?rev=1695699867&do=diff Manual Calibration Some notes on calibrating folk manually. Folk needs to be able to map from camera coordinates to projector coordinates in order to be able to project onto the pages where it sees april tags. At the moment Folk can do this with four validly mapped point-pairs. text/html 2024-04-20T20:46:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/mqtt?rev=1713645986&do=diff MQTT and Microcontroller Folk Integrations Jacob Haip, April 2024 I am interested in integrating more physical hardware and sensors into Folk Computer to expand computing to the size of the room and to take advantage of the affordances of hardware that the projected AR system alone can't do. Things like sensing the noise level of the environment, motors that spin a fan and create wind, and the physical feel of a knob that clicks when turning off. text/html 2026-05-12T16:30:35+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/tableshots?rev=1778603435&do=diff Towards a folk computer Cristóbal Sciutto, December, 2023 (Note: This post has some out-of-date code examples, although the principles still hold. You should check animation for a newer version of the animation program, for example.) Folk Computer is a research & art project, led by Omar Rizwan and Andrés Cuervo, centered around designing new physical computing interfaces. The aims are, among others: text/html 2025-05-05T20:43:26+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/tools?rev=1746477806&do=diff Tools we use in the making of Folk ''rr'' * rr debugger on GitHub * rr is a time travel debugger that runs native programs with only about a 50% overhead * it uses GDB for its interface * Mason Jones: * I use it as I've been weeding out bugs in jimtcl * I start by setting a breakpoint at the segfault or panic, see what value is messed up, set a watchpoint, and run it backwards until I hit that watchpoint. Then it's a matter of alternating forwards and backwards until I find the … text/html 2025-08-11T20:11:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/trie?rev=1754943075&do=diff Moved to Moved to Part 1: the Trie text/html 2023-09-30T19:41:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/vulkan?rev=1696102891&do=diff Vulkan Tricky -- need to set up without X or Wayland, exact process depends on your GPU hardware. Install these deps first to get them out of the way: sudo apt-get install libvulkan-dev libvulkan1 vulkan-tools libdrm-dev libdrm-tests flex bison python3-mako python3-setuptools libexpat1-dev libudev-dev gettext ca-certificates xz-utils zlib1g-dev pkg-config meson --no-install-recommends text/html 2023-10-30T16:49:45+00:00 Anonymous (anonymous@undisclosed.example.com) https://folk.computer/notes/what-it-could-be?rev=1698684585&do=diff What Folk Could Be Screensharing Concept - Arcade