The following codes can be used after enabling the Postprocessing cheats with the "boolProp enablePostProcessing true". If your video card doesn’t support pixel shaders, don’t do that.
Blur effect (red, green, blue from 0 to 255, and x from 0.0 to 1.0): bloom [r g b x]
Centered blur effect (X and Y are screen coordinates; x from 0.0 to 1.0): vignette [centerX centerY x]
Grainy screen effect: filmGrain [0.0-1.0]
Letterbox screen effect: letterBox [0.0-0.4]
Start the game with the following command line parameters:
Full screen: f
Set screen resolution: r[width]x[height]
Windowed screen: w
Disable sound: nosound