Siag Office is a free office package which consists of the spreadsheet Siag, the word processor PW, the animation program Egon, the text editor XedPlus, the file manager Xfiler and the previewer Gvu. Siag is easy to use, yet infinitely flexible through multiple embedded interpreters and a plugin mechanism that allows other programs to run inside the main document. The supported interpreters are SIOD, Guile, Tcl, and Python.
TextureOps is a set of plug-ins for the GIMP related to texture. Compositing a feathered layer on top of another layer slightly reduces the contrast in the the feathered region, noticably modifying the texture. TextureOps contains a "Sharpen Feathering" plug-in to counteract this effect. Also in TextureOps is a modified version of the standard "Make Seamless" plug-in that produces a more uniform result, based on similar principals. Finally, TextureOps provides a simple script for synthesizing a tilable texture of arbitrary size from a sample using the Sharpen Feathering plug-in.
vrml-scm is a VRML (Virtual Reality Modelling Language) parser written in scheme. The parser strictly conforms to the VRML 1.0 standard. It implements only parsing and syntactic checking. There is no semantic checking of the data. The scheme module is self-contained, and has been tested in guile and Bigloo.
Fluxus is a graphical live coding environment for Scheme. Fluxus reads live audio or OSC network messages which can be used as a source of animation data for real-time performances or installations. Keyboard or mouse input can also be read for simple game development, and a physics engine is included for realtime simulations of rigid body dynamics. The built in scheme code editor runs on top of the renderer, which means you can edit the scripts while they are running.
batchgimp is a batch processor for rendering of images. It uses a command-line interface, and supports JPEG, GIF, PNG, and PSD file formats. It accesses the GNU Image Manipulation Program (GIMP) plug-in structure to provide image processing functions. Images are processed in a batch for an entire directory. batchgimp is written in Perl and interfaces with the Scheme scripting engine provided by the GIMP.