Duplicating Shaders

float4 PS_Haze(float param1, float param2, ...)
{
    ...
}

float4 PS_Haze_Variation1()
{
    return PS_Haze(custom_value1, custom_value2, ...);
}
float4 PS_Haze_Variation2()
{
    return PS_Haze(custom_value3, custom_value4, ...);
}

...

PixelShader = PS_Haze_Variation1;

...

PixelShader = PS_Haze_Variation2;

effect ordering:
#include(gemfx, bloom2) 

bloom2:
#define ThisIsADublicate
#define Y
//might need to put a namespace around this include to deal with conflicts
#include bloom

#undef ThisIsADublicate
#undef Y

bloom:
#ifndef ThisIsADublicate 
#include gemFx_settings.cfg

//This is an example on how to create a duplicate Shader
//This is possible for the following shader
/*
TilftShift from CustomFX Suite

All shader in GemFX Suite

HeatHaze and FishEye in McFX Suite

Explosion and CA in SweetFX Suite
*/
//Include the duplicate shader in EffectOrdering.cfg -> e.g. #include EFFECT(CustomFX, TiltShiftDuplicateExample)
//Note that values for duplicate shader are not yet configurable in the mediator -> changes in the EffectOrdering.cfg will be overwritten in the mediator

#define RFX_duplicate
////-------------//
///**TILTSHIFT**///
//-------------////
#define USE_TILTSHIFT 0 //[TiltShift] //-TiltShift effect based of GEMFX

//>TiltShift Settings<\\
#define TiltShiftPower 5.0 //[0.0:100.0] //-Amount of blur applied to the screen edges
#define TiltShiftCurve 3.0 //[0.0:10.0] //-Defines the sharp focus / blur radius
#define TiltShiftOffset -0.6 //[-5.0:5.0] //-Defines the sharp focus aligned to the y-axis
#define TiltShift_TimeOut 0 //[0:100000] //-Defined Toggle Key will activate the shader until time (in ms) runs out. "0" deactivates the timeout feature.
#define TiltShift_ToggleKey VK_SPACE //[undef] //-

#include "ReShade/CustomFX/TiltShift.h

#undef USE_TILTSHIFT
#undef TiltShiftPower
#undef TiltShiftCurve
#undef TiltShiftOffset
#undef TiltShift_TimeOut
#undef TiltShift_ToggleKey
#undef RFX_duplicate