a multi-platform game library for C/C++ developers that provides many functions for graphics, sounds, player input (keyboard, mouse, and joystick), and timers. It also provides fixed and floating point mathematical functions, 3D functions, etc...
Making lens flare textures; Making cellular textures; Good normals for metaballs; Packing lightmaps into larger textures; Fun with the PQ-torus; Point in triangle test; Tunnels; Blur; Circular harmonics and more
a portable command-line driven interactive data and function plotting utility for UNIX, IBM OS/2, MS Windows, DOS, Macintosh, VMS, Atari and many other platforms.