approx 3 yrs ago, stefan posted the first poser 7 GI script in python forum here.  I posted the
first poser 7 GI render in their gallery here at about that time.  later, d3d released his first
FFRender python script for poser 7.  however, they found that poser users don't understand
what the GI acronym means, hence they changed it to IDL in later versions, but it still uses
some of the same GIVariables.