   What program is there to optimize GLSL shaders?
  I was wondering is there a program out that will optimize your GLSL shaders to show you what you could do to increase performance? Thanks   
  no, there is an app for nvidia cards which will show u where the driver is spending the time ( btw, i havent used it )   ;  Sorta related, but since my driver or graphics card(whichever does it) compiles my GLSL shader, does it perform any optimisation?   ;  yes, the backend will try to optimise the code for the target hardware, you can help this by writing CLEAR code so that it can figure out your intentions correctly.   