A C and C++ Library + a compiler to create Adobe Flash SWF movies up to version 9 (v1.8.1). Supports nearly all the tags, includes an ActionScript compiler. Detailed docs and other tools: convert fonts to Flash, decompile Flash, jpg2swf. LASTEST IS 1.8.4
Vincent ES 1.x is a 3D rendering library based on the OpenGL (R) ES 1.1 API specification (Common Lite) for embedded devices. ATTENTION: A new fixed pipeline implementation is being work on here: https://sourceforge.net/projects/oglsc
Sh is a predecessor to the RapidMind Multi-core Development Platform, a metaprogramming language for programmable GPUs. It is the result of research at the University of Waterloo Computer Graphics Lab.
SoftWire was the precursor to TransGaming's SwiftAsm. SwiftAsm is an optimizing run-time x86 assembler that can be used as a JIT compiler back-end for scripting languages, or for dynamic code generation of efficient processing pipelines.
A 3D hardware shader language, which is really open source and replaces CG,CGFX,HLSL and similar tools, is cross platform and truly vendor independent.