Editing GLSL shaders with PSPad editor

I quite like PSPad editor, which is free, quite complete and quite robust.

I use it a lot for editing things and others, including GLSL shaders.

I drafted an (incomplete for now) syntax highlight configuration file for GLSL shaders for PSPad, you can grab it here.

It also allows to enable the code explorer for shader files, thanks to the "C-like" structure, nice!