The open source mesh processing system
Support for legacy OpenGL in core profiles
C++ header-only library that simulates GLSL math
A shader-based software renderer written from scratch in C89
Open Source graphic tool and alternative to Insane Bump
3D Software Renderer in 700 Lines
Gphoton in a simple 3d modeler and ray tracer.
Get as many FPS as you need and amazing effects by rendering HTML/CSS
Gimpel3D - 2D/3D Stereo Conversion Editor
diagrammatic 3D in a web browser using SVG