Buffdog

A collection of modules for drawing on the screen. The primary purpose of this project is to learn about 3D rendering methods, physics simulation, and whatever else I'm working on. A secondary goal is to have minimal dependencies. Currently, the only external dependency is SDL2, which is used to handle keyboard and mouse input, and to draw the final rendered image to the screen every frame (every pixel in that image is updated by my code however, not SDL or OpenGL).

Setup (UNIX)

Install SDL2

git clone https://github.com/spurious/SDL-mirror.git SDL
cd SDL
mkdir build
cd build
../configure
make
sudo make install

cd back into this directory and make run

Targets

spinner - My trusty spinning line, a basic sanity check, letting me know everything is working.
buffdog - Whatever I'm working on. Right now, I'm messing around with 2D collision physics.
rockshot - A real-time rasterizer, which is slowly becoming a game engine. It currently runs on a custom software renderer (SDL is only used to create a window, fill individual pixels, and handle inputs).
delaunay - A Delaunay Triangulation demonstration, which is a stepping stone to implementing 3D Voronoi shattering.
voronoi - A Voronoi diagram demonstration, the next step to shattering (WIP)

Resources and Inspirations

Gabriel Gambetta's Computer Graphics from Scratch
Eric Lengyel's Mathematics for 3D Game Programming and Computer Graphics
Peter Shirley's Ray Tracing in One Weekend
The Quake source code
small3dlib
Dmitry Sokolov's tinyrenderer

TODO

Voronoi shattering in 3D (see more on my blog)
Port rendering to Vulkan
Move logging stuff to a logging.h or something

Namesake