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This repository contains miscellaneous code from throughout my career.

I regularly add to this repo but do not support this code through github--use it at your own risk, and please don't send feature requests or ask for help with it. Some of it was written while I was an undergraduate and may not compile on modern machines.

Some additional open source projects that I do actively support are:

The code in this repository is organized by topic.

Unity

  • tachyon - Unity 5.4 starter project for a Pong-like 3D game. Particle systems, events, gamepad, logic, physics, etc. August 2016.
  • tachyonVR - Unity 5.4 VR starter project for a Pong-like 3D game. Teleporting, fast rendering, Vive controllers, etc. August 2016.

Graphics

  • oculusSample - Oculus SDK OpenGL Sample. Windows Visual Studio project for initializing and rendering to a DK2 or later HMD using OpenGL. June 2015.
  • terrain - Continuous detail GPU Terrain, with multi-scale texturing and a hardware optimized variant of the geo clipmap. April 2014 http://casual-effects.blogspot.com/2014/04/fast-terrain-rendering-with-continuous.html
  • normal2bump - Compute bump map (height field/displacment) from a normal map. 2014.
  • convertToOBJ - Convert various 3D model formats to OBJ, e.g., IFS, PLY, PLY3, 3DS. 2013
  • cgpp3 - Minimal graphics support routines from Computer Graphics: Principles and Practice 3rd edition for loading a 3D model and image, and displaying and saving images. 2012.
  • glToScreen - Reverse OpenGL projection from my flipcode article. Pre-2005.
  • glProject - Forward OpenGL projection from my flipcode article. Pre-2005.
  • 2DOBB - 2D oriented bounding box collision test from my flipcode article. Pre-2005.

C++

  • sort - Elegant C++ reference implementations of heapSort, insertionSort, mergeSort, and quickSort. (now maintained in The Graphics Codex). December 2012
  • indent++ - Pretty-printer for indenting existing C++ files (handy for printing assignments when grading). 2012.
  • getip - Obtain the current machine's IP address. Pre-2005.
  • kbhit - Linux/OS X implementation of Windows console kbhit(). Pre-2005.
  • sprintf - Safe sprintf (now maintained in G3D as format()). Pre-2005.

JavaScript

  • cardgen - HTML5/Javascript/CSS playing card template for creating custom decks. May 2015.
  • relay - Node.js based relay server and sample application demonstrating its use. 2013.
  • treeList - Lightweight selectable and scrollable tree list UI. 2012.
  • jsmaze - Recursive perfect maze generator, with wrapping and imperfect options. 2018.
  • jsvectorify - Vector operations and operator overloading. 2018.
  • jsmenu - Lightweight library for dropdown menus. 2018.
  • jsloadmanager - Caching and post-processing for recursive resource loading via XMLHttpRequest/fetch. 2018.
  • jschat - Minimal WebRTC video conference reference code
  • jsremotegame - Minimal WebRTC Canvas + Audio + Input streaming reference code
  • jsscwt - Psychology Stroop test with random task

Java

  • javasandbox - ClassLoader for dynamic class reloading, useful for plugins. Executes arbitrary Java code in a protected sandbox. 2008.
  • redblack - Red-black Tree implementation and demo. 2008.
  • javadoom - Simple Doom-style ray caster written for a data structures course. 2008.
  • javarasterizer - Simple rasterizer written for a data structures course. 2008.
  • splay - Splay Tree applet and source code. 2003.

Lua/PICO-8

  • platformer - Full featured character simulation for a 2D platformer. 2017.
  • p8particle - Very fast single-pixel particle system for PICO-8. 2017.
  • p8sort - Very fast PICO-8 sort. 2017.
  • p8escape - Allow lowercase characters in printed PICO-8 strings. This is actually a web utility, not PICO-8 code itself. 2017
  • p8controller - Minimal-memory PICO-8 controller image for instruction screens. 2017.
  • p8pathfinder - Fully general PICO-8 A* (A-star) and Dijkstra pathfinding in a single function. 2017.
  • p8scale - Enhanced HQx 2x, 3x, 4x scaling with transparency and better curves

Scheme

  • infix - Recursive descent infix parser and macro for Scheme. 2003.

Other

  • xenon - 16-bit Windows 3.1 video game written in Visual Basic. 1995.