text below was copied from the notes at the top of the cell-cultures CVS project:

http://common-lisp.net/cgi-bin/viewcvs.cgi/cell-cultures/?cvsroot=cells

Other cvs projects alongside cell-cultures have short life-expectancies. Likewise, as soon as I figure out how to shut down the common-lisp Cello mailing lists, I will do so, so anyone wanting to track Cello should slide over to the Cells list.

"Kenny Tilton July 6, 20004

This CVS release inaugurates the collection of all my Cells-related code under one CVS project (./cells/cell-cultures), in turn under one common-lisp.net project, Cells. From now on the Cello project under common-lisp.net is quiesced, tho the web page is still informative and fun screen shots can be found in the FTP area.

This release also introduces two significant new code releases. First, a substantial reworking of Cell internals known informally as Cells II. Second, Celtic, a derived work of Peter Herth's LTk project marrying Common Lisp and TCl/Tk. Celtic adds Cells to the mix (and deviates wildly from LTk so cannot be combined with that.

A third subproject (a directory, in fact), Clyde (derived from "CL IDE") currently just contains a GUI wrapper for the CL apropos-list function, but could soon see a port of ClouCell, currently a Cello-based graphical object inspector.

Several other subprojects offer utilities required by most Cell projects. ASDF-ACLPROJ is Thomas Burdick's creation, which teaches ASDF about AllegroCL project files (their home-brewed defsystem). I use AllegroCL and cannot be trusted to keep parallel ASDF definition files current with the ACL project files. UTILS-KT is just what it looks like, very low-level stuff I use everywhere. FFI-EXTENDER makes it easier for me to whip up FFI bindings using UFFI (which, btw, you will also need).

Pure binding subprojects are functional as far as they go, but are usually incomplete because I punt when they get hard, until I need the challenging bindings. These include:

cl-opengl -- OpenGL. cl-openal -- bindings to OpenAL. Think "OpenGL for audio". cl-ftgl -- FTGL, FreeType for OpenGL cl-magick -- ImageMagick, for image files such as JPG, and vector or bitmapped graphics.

That just leaves Cello, the OpenGL/Freeglut-based CL GUI. Where LTk and Celtic offer simpler, higher-level (but still powerful), and native GUIs, Cello is Lisp all the way down and offers terrific graphical power thx to direct OpenGL capabilities accelerated by hardware GPUs."