Shader "Hidden/PostProcessing/SubpixelMorphologicalAntialiasing"
{
    Properties
    {
        [HideInInspector] _StencilRef("_StencilRef", Int) = 4
        [HideInInspector] _StencilMask("_StencilMask", Int) = 4
    }

    HLSLINCLUDE

    #pragma only_renderers d3d11 playstation xboxone xboxseries vulkan metal switch
    #pragma multi_compile_fragment SMAA_PRESET_LOW SMAA_PRESET_MEDIUM SMAA_PRESET_HIGH
    #pragma editor_sync_compilation

    ENDHLSL

    SubShader
    {
        Tags{ "RenderPipeline" = "HDRenderPipeline" }

        Cull Off ZWrite Off ZTest Always

        // Edge detection
        Pass
        {
            Name "Edge detection"
            Stencil
            {
                WriteMask [_StencilMask]
                Ref [_StencilRef]
                Comp Always
                Pass Replace
            }

            HLSLPROGRAM

                #pragma vertex VertEdge
                #pragma fragment FragEdge
                #include "SubpixelMorphologicalAntialiasingBridge.hlsl"

            ENDHLSL
        }

        // Blend Weights Calculation
        Pass
        {
            Name "Blend Weights Calculation"
            Stencil
            {
                WriteMask[_StencilMask]
                ReadMask [_StencilMask]
                Ref [_StencilRef]
                Comp Equal
                Pass Replace
            }

            HLSLPROGRAM

                #pragma vertex VertBlend
                #pragma fragment FragBlend
                #include "SubpixelMorphologicalAntialiasingBridge.hlsl"

            ENDHLSL
        }

        // Neighborhood Blending
        Pass
        {
            Name "Neighborhood Blending"
            HLSLPROGRAM

                #pragma vertex VertNeighbor
                #pragma fragment FragNeighbor
                #include "SubpixelMorphologicalAntialiasingBridge.hlsl"

            ENDHLSL
        }
    }
}