A Tk OpenGL widget

We present TkOGL, a Tk widget that enables the creation and display of 3D graphics using the OpenGL API. Our approach features a reasonably complete Tcl binding to the core OpenGL functionality, as well as a set of extensions that implement a higher-level interface to many common utility functions such as those provided by the OpenGL utility library (GLU). 1. Introduction OpenGL [1] is becoming a standard Application Program Interface (API) for writing portable 3D computer graphics programs. On the other hand, the Tk toolkit offers a portable and powerful environment for the development of graphical user interfaces. It is to be expected then, that the merging of both capabilities should appeal to a wide audience. In fact, many attempts to do exactly that have been reported. Among these, we cite the Tiger system [2] and the Togl widget [3]. For various reasons, however, these packages did not meet my expectations. For instance, Tiger mimics the OpenGL API almost exactly, which makes th..