Ever wonder what the FTX Day Night Switcher does to your system?  Here’s the detail.

The Miscelleneous_lib_orbx.bgl under X:\Microsoft Flight Simulator X\Scenery\Global\scenery directory is the file controlling some of the lights in FTX scenery.   The switcher reinstalls two versions of it in the ON and OFF folders under X:\Microsoft Flight Simulator X\ORBX\Scripts\Lights directory.

The OFF folder contains the DAY version (with some of the lights removed), where the ON folder holds the NIGHT (original full) version.  The switcher just functions to copy the full or lighter version (on or off) to replace the one in the Global Scenery directory.

Regarding the hype of “doubling your FPS”,  I don’t have the luck to reach that level but just a marginal improvement.    Developer of FTX says,  “… not seeing a big change may be due to your already optimized settings or possibly GPU AA settings, frame limiter or even a FSX.cfg tweak.”     Anyway, still worth a shot.