My mistake everyone. It seems that the ShowTestShader command was removed in the latest version.
That means there's no way to turn off shaders in game - all the more reason for us to get our act together with a master plugin to control this stuff.
@ shadeMe: What's your plugin like, is it in any sort of useable state?
EDIT: After seeing some facepalm worthy posts in the Nexus comments section, I've added pretty coloured notices and a link to this thread to the description field and a notice in the comments section, both of which will be ignored, but in a fantasy world would reduce the number of said comments and would be of assistance to interested people.
Well, it basically loads every known shader that's installed and adds a menu token to customize each. On activating the token, you get a options menu which lets you walk through each shader's configurable variable. I can't seem to find the damned file though - I'll rewrite it as soon as possible. Another point worth noting is that all tweakable variables will need a modification in scope before they can properly accessed by OBGE - Tweakable variables should do away with their constant/uniform/static 'ness and be declared. For example:
// pre-obgestatic const float fRawSSAOTerm = 0;//post-obgeextern fRawSSAOTerm;
The default values can be supplied through the OBGE script.
PS : I've also taken it upon me to create some
artistic comparisons of the ColorMood shader, after seeing that nobody seems to like to change the default color settings
PPS : Ignore the Einsteins at the Nexus - It is never worth doing otherwise.
PPPS : I haven't got modification rights to the Nexus page yet.