Code
Chebyshev approximation in Python Sept 2009Summed Images Summed images for efficient motion blur. July 2007
OpenEXR Python bindings for OpenEXR. June 2007
vop A fast vector math library for Python. May 2007
gnbasic A small BASIC interpreter. August 2001
High Dynamic Range Photography
Making High Dynamic Range (HDR) Images with the Kodak DC290. June 2001vrpic A GTK+ based viewer for Radiance picture file format. June 2000
OpenGL
Darklights Shadows using negative lights. Oct 1999Flies Making flies. December 1998
Distressing images Simulating old movie film. December 1998
Seeing Stars Using feedback and blended sprites. November 1998
A simple method for Visualizing overdraw via stencil. March 1998
An introduction to Multi-pass rendering. June 1997
Electronics
Homebrew CPU in an FPGA . August 2003Making an arbitrary frequency clock in VHDL . July 2003
goszifox: an OpenGL display for the Wittig Oszifox. June 2003
Parallel port hacking with FreeBSD. June 2003
A Power over Ethernet (PoE) extractor. March 2003
NTSC from an FPGA. Video with an FPGA and two resistors. Feb 2003
802.11b Cantenna Notes. May 2002
How to make your own double-sided PCBs. Jan 2002
dlscenix A Scenix (now Ubicom) programmer for about $10. Sept 2000
Hacks
Watching movies on your phone. December 2003M