#include "common.hlsl_psh"
#include "colorblind.hlsl_psh"

// x = center, y = 1/range, z = peak, w = value scalar
float4 ParamsA;

// x = shift, y = 1/range, z = peak, w = unused
float4 ParamsB;

sampler Sampler_Pattern	: register(s0);
sampler Sampler_Hue	: register(s1);

struct PS_INPUT 
{
	float2 UV : TEXCOORD0;
};

float4 Main( PS_INPUT In ) : COLOR
{
	const float4	Pattern		= tex2D( Sampler_Pattern, In.UV );
	const float4	Hue		= tex2D( Sampler_Hue, In.UV );
	const float	PatternValueA	= saturate( ParamsA.z * ( 1.0f - ( ParamsA.y * abs( ParamsA.x - Pattern.r ) ) ) );
	const float	ValueA		= PatternValueA * Pattern.g;
	const float	PatternValueB	= saturate( ParamsB.z * ( 1.0f - ( ParamsB.y * abs( ( ParamsB.x + ParamsA.x ) - Pattern.r ) ) ) );
	const float	ValueB		= PatternValueB * Pattern.a;
	const float	Value		= saturate( ValueA + ValueB ) * ParamsA.w;
	const float4	FinalColor	= Value * Hue;

#if COLOR_BLIND
	return mul( ColorBlindMat, FinalColor );
#else
	return FinalColor;
#endif
}