SwiftShader is a high-performance CPU-based implementation
Hewlett-Packard's Linux imaging and printing software
A collection of packages providing extra functionality for GNU Octave
A project that has moved to GitHub
Drawing, graphics conversion, software development, administration.
Display, convert, and edit raster image and vector image files
Cross Platform GUI Toolkit
realistic driving simulation + functions for 2D/3D graphics
SIMD-accelerated libjpeg-compatible JPEG codec library
Scanning Probe Microscopy Controller and Data Visualization Software
small console GML or graphviz DOT graph viewer
Deep paint and stop-motion animation software
A shader-based software renderer written from scratch in C89
Unofficial Windows builds of FontForge
Cross-platform open source software for astrophotography
A small C library for building user interfaces with C, XML and CSS.
3D Software Renderer in 700 Lines
Free yourself