- The GIMP-A image manipulation toolkit.
- Mesa 3D-Free clone of SGI's OpenGL graphics libraries.
- Blender-3D modeller and renderer.
- PovRay-Persistence of Vision Ray Tracer.
- AC3D-3D Graphics Modeller.
- Sced-3d scene modelling program.
- Maddog's Studio-VirtualWorlds.
- Liquid Reality-A VRML developement kit.
- Maverik-OpenGL graphics engine.
- VRML Org-Standards body and info source for VRML.
- BlueMoon Rendering Tool's-3d graphics software.