Reshade+SweetFX (http://reshade.me) shader emulating Oculus Rift barrel distortion and chromatic abberation. Specifically created to work with Elite Dangerous Side-by-Side 3D.
Copy Custom.h to Sweetfx/Shaders/Custom.h. Add the following at the end of SweetFx/SweetFX_settings.txt:
/*-----------------------------------------------------------.
/ Custom settings /
'-----------------------------------------------------------*/
#define VignetteToggle 1 // [0 or 1]: fade image edges to black
#define VignetteFactor 1 // size of vignette
#define AspectRatioCorrection 0 // [0 or 1]: Correct stretching of SBS imagery
#define HmdWarpParam float4(1.0, 0.22, 0.24, 0.0) // Adjust the barrel distortion
#define ChromaticAberration 0 // [0 or 1]: toggle ChromaticAberration
#define ChromAbParam float4(1.0, 0.0, 1.0, 0) // Chromatic Aberration, change if your lenses requires correction.
I'm using these settings:
#define VignetteToggle 1
#define VignetteFactor 3f
#define AspectRatioCorrection 0
#define ChromaticAberration 0
#define HmdWarpParam float4(1.40, 0.08, 0.08, 0)