Description:

Togl is a Tk widget for OpenGL rendering. Togl was originally based on OGLTK,
written by Benjamin Bederson at the University of New Mexico. Togl's main
features are:

* unifies Microsoft Windows, X11 (Linux/IRIX/...), and Mac OS X Aqua support
* support for requesting stencil, accumulation, alpha buffers, etc.
* multiple OpenGL drawing windows
* simple stereo rendering support
* simple, portable font support
* color-index mode support including color allocation functions
* overlay plane support
* OpenGL extension testing from Tcl
* Tcl Extension Architecture (TEA) 3 compliant

Togl does almost no OpenGL drawing itself, instead it manages OpenGL drawing
by calling various Tcl commands (a.k.a., callback functions). Those commands
can be C functions that call OpenGL (in)directly or another Tcl package
(e.g., Tcl3D).

Togl is copyrighted by Brian Paul (brian_e_paulATyahooDOTcom),
Benjamin Bederson (bedersonATcsDOTumdDOTedu), and Greg Couch
(gregcouchATusersDOTsourceforgeDOTnet). See the LICENSE file for details.