Download of openglex4 4.5.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The following versions: 4.2, 4.1 and 4.0 are the most frequently downloaded ones by the program users.
According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. This free program is compatible with Mac OS X 10.6 or later. The actual developer of this free Mac application is realtech VR. The application lies within Developer Tools, more precisely Debugging Tools.
From the developer:
Many OpenGL extensions, as well as extensions to related APIs like GLU, GLX, and WGL, have been defined by vendors and groups of vendors. The extension registry is maintained by SGI and contains specifications for all known extensions, written as modifications to the appropriate specification documents.
You may want to check out more software for Mac, such as MacMercurial or SyphonInject, which might be similar to openglex4.