John Tsiombikas' personal web site
[ about - hacks - articles ]
My name is John Tsiombikas (alternate spelling:
Tsiompikas) and I'm a hacker. Most of the time I'm hacking on computer graphics,
sometimes operating systems and kernel code, and lately a bit of electronics.
If you want to talk to me, drop me an email at firstname.lastname@example.org
(also here's a complete list of all my past and current email
addresses). Send me only proper plain-text emails hard-wrapped at
72 columns, or prepare to meet my bit-bucket.
You may use my GPG key (fingerprint: 7911 86F0 D58B
5487 EB91 82D6 B4AF 109C 4174 CFF2) to send me encrypted
messages. It's also available on public
Other than this web page I've got a blog, some videos on
youtube, a picassa
photo album, and I post on twitter and identi.ca.
Support the Free Software Foundation, by becoming an FSF associate member
Some of the following hacks are release-quality and useful, and some are quick&dirty hacks I happen to quite like. The lists under each category are not exhaustive, click on the top-level links for more hacks.
- kernel - a simple UNIX kernel for x86 PCs
- cl-ray - interactive GPU (OpenCL) raytracer for polygon mesh scenes
- metasurf - implicit surface polygonization (isosurface extraction) library
- libdrawtext - OpenGL text rendering library
- libpsys - particle system
- dsys2 - event sequencing library designed demoscene productions
- rbtree - balanced binary search tree (left-leaning red-black tree) library
- imtk - immediate-mode GUI toolkit for OpenGL programs
- vpost (and plugins) - video processing with OpenGL code
- stereoview - stereoscopic OpenGL image viewer
- stereoplay - stereoscopic OpenGL video player
- rayfract - real-time GPU (GLSL) julia quaternion fractal raytracer
- webgl hacks - random webgl hacks
- xresize - resize X11 screen using either the xr&r or the xf86vidmode extension
- wmfreqview - window-maker dockapp showing a graph of processor frequency (frequency scaling) over time.
- Hosted at googlecode
- s-ray - photorealistic renderer using the photon mapping algorithm
- henge - simple C++ OpenGL 3D engine
- stereowrap - stereoscopic OpenGL wrapper for non-stereo-capable systems
- glory - GLUT-like multiplatform OpenGL context creation, event handling, and more
- ubertk - GUI toolkit for graphics applications
- kdtree - simple C library for working with kd-trees
- frapix - framerate monitoring, limiter, and screen capture for UNIX OpenGL programs
- drippy - datafile ripper
- linuxtrack-wine - glue between the linuxtrack head-tracking system and windows applications running through wine
- Hosted at sourceforge
- Old projects
- 3dengfx - cross-platform OpenGL 3D engine
- Demoscene projects
- mindflush / mlfc - demo, 2nd at pixelshow 2007 (cross-platform, opengl) [youtube video]
- pixelshow2007 invitro / the lab - invitation for the pixelshow 2007 demoparty (cross-platform, opengl)
- softy / mlfc - demo, 4th at the coder.gr x-mass 2006 compo (cross-platform, software rendering) [youtube video]
- summerhack / the lab - demo, released in 2005 (cross-platform, opengl) [youtube video]
- eternal / the lab - demo, 3rd at react 2004 (gnu/linux, opengl)
- wedtroid / the lab & quadra - wedtro for cybernoid's wedding, released in 2003 (windows, direct3d 8)
- absence / the lab - demo, 3rd at react 2003 (windows direct3d 8)
In rare occasions I write code for other people's projects. The only recurring one is freeglut.
Here's a list of articles I've written (apart from whatever is on my blog):
I had written some more for the now defunct demoscene.gr web site. I'll try to
collect them locally and post them here soon.