#define CSHADE_HORIZONTALBLUR

/*
    This shader applies a horizontal Gaussian blur to the image. It smoothes the image along the horizontal axis, reducing sharp details and creating a softening effect.
*/

#include "cBlur.fxh"

void PS_Main(CShade_VS2PS_Quad Input, out float4 Output : SV_TARGET0)
{
    float3 BlurColor = GetGaussianBlur(Input.Tex0, true).rgb;

    // RENDER
    #if defined(CSHADE_BLENDING)
        Output = float4(BlurColor, _CShade_AlphaFactor);
    #else
        Output = float4(BlurColor, 1.0);
    #endif
    CShade_Render(Output, Input.HPos.xy, Input.Tex0);
}

technique CShade_HorizontalBlur
<
    ui_label = "CShade | Horizontal Blur";
    ui_tooltip = "Horizonal Gaussian blur effect.";
>
{
    pass HorizontalBlur
    {
        SRGBWriteEnable = CSHADE_WRITE_SRGB;
        CBLEND_CREATE_STATES()

        VertexShader = CShade_VS_Quad;
        PixelShader = PS_Main;
    }
}