ryzom-core/nel/src/3d/shaders/fxaa_pp.cg

#define FXAA_PC 1
#define FXAA_HLSL_3 1
#define FXAA_QUALITY__PRESET 12
#define FXAA_EARLY_EXIT 0
#define FXAA_GREEN_AS_LUMA 1

#define h4tex2Dlod tex2Dlod
#define half4 float4
#define half3 float3
#define half2 float2
#define half float

#include "fxaa3_11.h"

void fxaa_pp(
	// Per fragment parameters
	float2 pos : TEXCOORD0, 
#if (FXAA_PS3 == 1)
	float4 fxaaConsolePosPos : TEXCOORD1, 
#endif
	
	// Fragment program constants
#if (FXAA_PC == 1)
	uniform float2 fxaaQualityRcpFrame,
	uniform float fxaaQualitySubpix,
	uniform float fxaaQualityEdgeThreshold,
	uniform float fxaaQualityEdgeThresholdMin,
#else
	uniform float4 fxaaConsoleRcpFrameOpt,
	uniform float4 fxaaConsoleRcpFrameOpt2,
#endif
	uniform sampler2D nlTex0 : TEX0, 
	
	// Output color
	out float4 oCol : COLOR
)
{
#if (FXAA_PC == 1)
	oCol = FxaaPixelShader(
		pos, 
		nlTex0,
		fxaaQualityRcpFrame,
		fxaaQualitySubpix,
		fxaaQualityEdgeThreshold,
		fxaaQualityEdgeThresholdMin
		);
#else
	oCol = FxaaPixelShader(
		pos, 
		fxaaConsolePosPos, 
		nlTex0,
		fxaaConsoleRcpFrameOpt,
		fxaaConsoleRcpFrameOpt2
		);
#endif
}

/*
Have FXAA vertex shader run as a full screen triangle,
and output "pos" and "fxaaConsolePosPos"
such that inputs in the pixel shader provide,
 
// {xy} = center of pixel
FxaaFloat2 pos,
 
// {xy__} = upper left of pixel
// {__zw} = lower right of pixel
FxaaFloat4 fxaaConsolePosPos,
*/

// fxaaConsoleRcpFrameOpt:
// Only used on FXAA Console.
// This must be from a constant/uniform.
// This effects sub-pixel AA quality and inversely sharpness.
// Where N ranges between,
// N = 0.50 (default)
// N = 0.33 (sharper)
// {x___} = -N/screenWidthInPixels
// {_y__} = -N/screenHeightInPixels
// {__z_} = N/screenWidthInPixels
// {___w} = N/screenHeightInPixels

// fxaaConsoleRcpFrameOpt2:
// Only used on FXAA Console.
// Not used on 360, but used on PS3 and PC.
// This must be from a constant/uniform.
// {x___} = -2.0/screenWidthInPixels
// {_y__} = -2.0/screenHeightInPixels
// {__z_} = 2.0/screenWidthInPixels
// {___w} = 2.0/screenHeightInPixels