Opensource freelancer I came to Western Q3 since 2005, in 2008 I proposed my first patch to the Smokin' Guns team. Official member since january 2009, now I'm the official Smokin' Guns Linux release maintainer.
This file can be saved in your 'smokinguns' folder with 'pk3' extension in place of 'zip'. Then you can edit any of its GLSL program when FBO effects are enabled to tuned the effects. Gord Allott is the main contributor for these files.