#ifndef INPUT_LUXLWRP_BASE_INCLUDED
#define INPUT_LUXLWRP_BASE_INCLUDED

    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
//  defines a bunch of helper functions (like lerpwhiteto)
    #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/CommonMaterial.hlsl"  
//  defines SurfaceData, textures and the functions Alpha, SampleAlbedoAlpha, SampleNormal, SampleEmission
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/SurfaceInput.hlsl"
//  defines e.g. "DECLARE_LIGHTMAP_OR_SH"
    #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
    #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Color.hlsl"
    #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/UnityInstancing.hlsl"

//  Material Inputs
    CBUFFER_START(UnityPerMaterial)
        half4 _BaseColor;
        half _AlphaClip;
        float4 _BaseMap_ST;
        half _Cutoff;
        half _Smoothness;
        half4 _SpecColor;
        half _Occlusion;
        half4 _WindMultiplier;
        float2 _DistanceFade;
        half _BumpScale;
    CBUFFER_END

//  Additional textures
    TEXTURE2D(_LuxLWRPWindRT); SAMPLER(sampler_LuxLWRPWindRT);

//  Global Inputs
    half4 _LuxLWRPWindDirSize;
    half4 _LuxLWRPWindStrengthMultipliers;
    float4 _LuxLWRPSinTime;

//  Structs
    struct VertexInput
    {
        float3 positionOS                   : POSITION;
        float3 normalOS                     : NORMAL;
        float4 tangentOS                    : TANGENT;
        float2 texcoord                     : TEXCOORD0;
        float2 lightmapUV                   : TEXCOORD1;
        half4 color                         : COLOR;
        UNITY_VERTEX_INPUT_INSTANCE_ID
    };
    
    struct VertexOutput
    {
        float4 positionCS                   : SV_POSITION;
        float2 uv                           : TEXCOORD0;

        half2 fadeOcclusion                 : TEXCOORD9;

        #if !defined(UNITY_PASS_SHADOWCASTER) && !defined(DEPTHONLYPASS)
            float3 normalWS                 : TEXCOORD3;
        #endif

        #if !defined(UNITY_PASS_SHADOWCASTER) && !defined(DEPTHONLYPASS)
            DECLARE_LIGHTMAP_OR_SH(lightmapUV, vertexSH, 1);
            #if defined(REQUIRES_WORLD_SPACE_POS_INTERPOLATOR)
                float3 positionWS           : TEXCOORD2;
            #endif
            
            #ifdef _NORMALMAP
                float4 tangentWS            : TEXCOORD4;
            #endif
            float3 viewDirWS                : TEXCOORD5;

            half4 fogFactorAndVertexLight   : TEXCOORD6;
            #if defined(REQUIRES_VERTEX_SHADOW_COORD_INTERPOLATOR)
                float4 shadowCoord          : TEXCOORD7;
            #endif
        #endif
        UNITY_VERTEX_INPUT_INSTANCE_ID
        UNITY_VERTEX_OUTPUT_STEREO
    };

    struct SurfaceDescription
    {
        float3 albedo;
        float alpha;
        float3 normalTS;
        float3 emission;
        float metallic;
        float3 specular;
        float smoothness;
        float occlusion;
        //float translucency;
    };


#endif