GLUX 2.0 could be downloaded from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. We recommend checking the downloaded files with any free antivirus. The most popular versions among the software users are 2.0 and 1.0. The actual developer of the free software is Gossen Foto-Lichtmesstechnik. The program lies within Development Tools, more precisely IDE.
From the developer:
GLUX stands for OpenGL Useful eXtensions. It provides basic functionality such as texture loading, shader compiling and mathematic operations on matrices, vectors and quaternions. Consider it the OpenGL equivalent of Microsoft's D3DX library. Very good program for windows.
You may want to check out more software, such as C++ Compiler, Sun Java Toolkit for CDC or MIDletPascal, which might be related to GLUX.