Pass
{
	Name "ShadowCaster"
    Tags{"LightMode" = "ShadowCaster"}

    ZWrite On ZTest LEqual

    // Material options generated by graph
${Culling}
    HLSLPROGRAM
    // Required to compile gles 2.0 with standard srp library
    #pragma prefer_hlslcc gles
    #pragma exclude_renderers d3d11_9x
    #pragma target 2.0

    //--------------------------------------
    // GPU Instancing
    #pragma multi_compile_instancing

    #pragma vertex ShadowPassVertex
    #pragma fragment ShadowPassFragment

    // Defines generated by graph
${Defines}
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/ShaderGraphFunctions.hlsl"
    #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"

${Graph}
	struct VertexOutput
	{
	    float2 uv           : TEXCOORD0;
	    float4 clipPos      : SV_POSITION;
        // Interpolators defined by graph
${VertexOutputStruct}
        UNITY_VERTEX_INPUT_INSTANCE_ID
	};

    float3 _LightDirection;

    VertexOutput ShadowPassVertex(GraphVertexInput v)
	{
	    VertexOutput o;
	    UNITY_SETUP_INSTANCE_ID(v);
        UNITY_TRANSFER_INSTANCE_ID(v, o);

        // Vertex transformations performed by graph
${VertexShader}
		VertexDescriptionInputs vdi = (VertexDescriptionInputs)0;

        // Vertex description inputs defined by graph
${VertexShaderDescriptionInputs}
	    VertexDescription vd = PopulateVertexData(vdi);
        v.vertex.xyz = vd.Position;

	    // Vertex shader outputs defined by graph
${VertexShaderOutputs}

	    float3 positionWS = TransformObjectToWorld(v.vertex.xyz);
        float3 normalWS = TransformObjectToWorldNormal(v.normal);

        float4 clipPos = TransformWorldToHClip(ApplyShadowBias(positionWS, normalWS, _LightDirection));

	#if UNITY_REVERSED_Z
	    clipPos.z = min(clipPos.z, clipPos.w * UNITY_NEAR_CLIP_VALUE);
	#else
	    clipPos.z = max(clipPos.z, clipPos.w * UNITY_NEAR_CLIP_VALUE);
	#endif
        o.clipPos = clipPos;

	    return o;
	}

    half4 ShadowPassFragment(VertexOutput IN ${FaceSign}) : SV_TARGET
    {
        UNITY_SETUP_INSTANCE_ID(IN);

        // Pixel transformations performed by graph
${PixelShader}
        SurfaceDescriptionInputs surfaceInput = (SurfaceDescriptionInputs)0;

		// Surface description inputs defined by graph
${PixelShaderSurfaceInputs}
        SurfaceDescription surf = PopulateSurfaceData(surfaceInput);

        float3 Albedo = float3(0.5, 0.5, 0.5);
		float3 Emission = 0;
		float Alpha = 1;
		float AlphaClipThreshold = 0;

		// Surface description remap performed by graph
${PixelShaderSurfaceRemap}
 #if _AlphaClip
		clip(Alpha - AlphaClipThreshold);
#endif
        return 0;
    }

    ENDHLSL
}

Pass
{
	Name "DepthOnly"
    Tags{"LightMode" = "DepthOnly"}

    ZWrite On
    ColorMask 0

    // Material options generated by graph
${Culling}
    HLSLPROGRAM
    // Required to compile gles 2.0 with standard srp library
    #pragma prefer_hlslcc gles
    #pragma exclude_renderers d3d11_9x
    #pragma target 2.0

    //--------------------------------------
    // GPU Instancing
    #pragma multi_compile_instancing

    #pragma vertex vert
    #pragma fragment frag

    // Defines generated by graph
${Defines}
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/ShaderGraphFunctions.hlsl"
    #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"

${Graph}
	struct VertexOutput
	{
	    float2 uv           : TEXCOORD0;
	    float4 clipPos      : SV_POSITION;
        // Interpolators defined by graph
${VertexOutputStruct}
        UNITY_VERTEX_INPUT_INSTANCE_ID
        UNITY_VERTEX_OUTPUT_STEREO
	};

    VertexOutput vert(GraphVertexInput v)
    {
        VertexOutput o = (VertexOutput)0;
	    UNITY_SETUP_INSTANCE_ID(v);
        UNITY_TRANSFER_INSTANCE_ID(v, o);
        UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);

	    // Vertex transformations performed by graph
${VertexShader}
		VertexDescriptionInputs vdi = (VertexDescriptionInputs)0;

        // Vertex description inputs defined by graph
${VertexShaderDescriptionInputs}
	    VertexDescription vd = PopulateVertexData(vdi);
        v.vertex.xyz = vd.Position;

	    // Vertex shader outputs defined by graph
${VertexShaderOutputs}
	    o.clipPos = TransformObjectToHClip(v.vertex.xyz);
	    return o;
    }

    half4 frag(VertexOutput IN ${FaceSign}) : SV_TARGET
    {
        UNITY_SETUP_INSTANCE_ID(IN);
		UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(IN);

        // Pixel transformations performed by graph
${PixelShader}
        SurfaceDescriptionInputs surfaceInput = (SurfaceDescriptionInputs)0;

		// Surface description inputs defined by graph
${PixelShaderSurfaceInputs}
        SurfaceDescription surf = PopulateSurfaceData(surfaceInput);

        float3 Albedo = float3(0.5, 0.5, 0.5);
		float3 Emission = 0;
		float Alpha = 1;
		float AlphaClipThreshold = 0;

		// Surface description remap performed by graph
${PixelShaderSurfaceRemap}
 #if _AlphaClip
		clip(Alpha - AlphaClipThreshold);
#endif
        return 0;
    }
    ENDHLSL
}

// This pass it not used during regular rendering, only for lightmap baking.
Pass
{
	Name "Meta"
    Tags{"LightMode" = "Meta"}

    Cull Off

    HLSLPROGRAM
    // Required to compile gles 2.0 with standard srp library
    #pragma prefer_hlslcc gles
    #pragma exclude_renderers d3d11_9x
    #pragma target 2.0

    #pragma vertex vert
    #pragma fragment frag

    float4 _MainTex_ST;

    // Defines generated by graph
${Defines}
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/MetaInput.hlsl"
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/ShaderGraphFunctions.hlsl"
    #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"

    #pragma shader_feature _ _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A

    ${Graph}
	struct VertexOutput
	{
	    float2 uv           : TEXCOORD0;
	    float4 clipPos      : SV_POSITION;
        // Interpolators defined by graph
${VertexOutputStruct}
        UNITY_VERTEX_INPUT_INSTANCE_ID
        UNITY_VERTEX_OUTPUT_STEREO
	};

    VertexOutput vert(GraphVertexInput v)
    {
        VertexOutput o = (VertexOutput)0;
	    UNITY_SETUP_INSTANCE_ID(v);
        UNITY_TRANSFER_INSTANCE_ID(v, o);
        UNITY_INITIALIZE_VERTEX_OUTPUT_STEREO(o);

	    // Vertex transformations performed by graph
${VertexShader}

	    // Vertex shader outputs defined by graph
${VertexShaderOutputs}
        o.clipPos = MetaVertexPosition(v.vertex, uv1, uv1, unity_LightmapST, unity_DynamicLightmapST);
	    return o;
    }

    half4 frag(VertexOutput IN ${FaceSign}) : SV_TARGET
    {
        UNITY_SETUP_INSTANCE_ID(IN);
		UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(IN);

        // Pixel transformations performed by graph
${PixelShader}
        SurfaceDescriptionInputs surfaceInput = (SurfaceDescriptionInputs)0;

		// Surface description inputs defined by graph
${PixelShaderSurfaceInputs}
        SurfaceDescription surf = PopulateSurfaceData(surfaceInput);

		float3 Albedo = float3(0.5, 0.5, 0.5);
		float3 Emission = 0;
		float Alpha = 1;
		float AlphaClipThreshold = 0;

		// Surface description remap performed by graph
${PixelShaderSurfaceRemap}
 #if _AlphaClip
		clip(Alpha - AlphaClipThreshold);
#endif

        MetaInput metaInput = (MetaInput)0;
        metaInput.Albedo = Albedo;
        metaInput.Emission = Emission;

        return MetaFragment(metaInput);
    }
    ENDHLSL
}