Shader "Custom/Graffiti"
{
    Properties
    {
        [MainTexture] _BaseMap("Albedo", 2D) = "white" {}
        [MainColor] _BaseColor("Color", Color) = (1,1,1,1)
        _MaskTex("MaskTex", 2D) = "white" {}

        _Smoothness("Smoothness", Range(0.0, 1.0)) = 0.5

        _Metallic("Metallic", Range(0.0, 1.0)) = 0.0

        _BumpScale("Scale", Float) = 1.0
        _BumpMap("Normal Map", 2D) = "bump" {}
    }

    SubShader
    {
        Tags
        {
            "RenderType" = "Opaque"
            "RenderPipeline" = "UniversalPipeline"
            "UniversalMaterialType" = "Lit"
            "IgnoreProjector" = "True"
        }
        LOD 300

        // ------------------------------------------------------------------
        //  Forward pass. Shades all light in a single pass. GI + emission + Fog
        Pass
        {
    
            HLSLPROGRAM
            #pragma target 2.0

            // -------------------------------------
            // Shader Stages
            #pragma vertex LitPassVertex
            #pragma fragment CustomLitPassFragment

            // -------------------------------------
            // Material Keywords
            #pragma shader_feature_local _NORMALMAP
            #pragma shader_feature_local _PARALLAXMAP
            #pragma shader_feature_local _RECEIVE_SHADOWS_OFF
            #pragma shader_feature_local _ _DETAIL_MULX2 _DETAIL_SCALED
            #pragma shader_feature_local_fragment _SURFACE_TYPE_TRANSPARENT
            #pragma shader_feature_local_fragment _ALPHATEST_ON
            #pragma shader_feature_local_fragment _ _ALPHAPREMULTIPLY_ON _ALPHAMODULATE_ON
            #pragma shader_feature_local_fragment _EMISSION
            #pragma shader_feature_local_fragment _METALLICSPECGLOSSMAP
            #pragma shader_feature_local_fragment _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
            #pragma shader_feature_local_fragment _OCCLUSIONMAP
            #pragma shader_feature_local_fragment _SPECULARHIGHLIGHTS_OFF
            #pragma shader_feature_local_fragment _ENVIRONMENTREFLECTIONS_OFF
            #pragma shader_feature_local_fragment _SPECULAR_SETUP

            // -------------------------------------
            // Universal Pipeline keywords
            #pragma multi_compile _ _MAIN_LIGHT_SHADOWS _MAIN_LIGHT_SHADOWS_CASCADE _MAIN_LIGHT_SHADOWS_SCREEN
            #pragma multi_compile _ _ADDITIONAL_LIGHTS_VERTEX _ADDITIONAL_LIGHTS
            #pragma multi_compile _ EVALUATE_SH_MIXED EVALUATE_SH_VERTEX
            #pragma multi_compile_fragment _ _ADDITIONAL_LIGHT_SHADOWS
            #pragma multi_compile_fragment _ _REFLECTION_PROBE_BLENDING
            #pragma multi_compile_fragment _ _REFLECTION_PROBE_BOX_PROJECTION
            #pragma multi_compile_fragment _ _SHADOWS_SOFT _SHADOWS_SOFT_LOW _SHADOWS_SOFT_MEDIUM _SHADOWS_SOFT_HIGH
            #pragma multi_compile_fragment _ _SCREEN_SPACE_OCCLUSION
            #pragma multi_compile_fragment _ _DBUFFER_MRT1 _DBUFFER_MRT2 _DBUFFER_MRT3
            #pragma multi_compile_fragment _ _LIGHT_COOKIES
            #pragma multi_compile _ _LIGHT_LAYERS
            #pragma multi_compile _ _FORWARD_PLUS
            #include_with_pragmas "Packages/com.unity.render-pipelines.universal/ShaderLibrary/RenderingLayers.hlsl"

            // -------------------------------------
            // Unity defined keywords
            #pragma multi_compile _ LIGHTMAP_SHADOW_MIXING
            #pragma multi_compile _ SHADOWS_SHADOWMASK
            #pragma multi_compile _ DIRLIGHTMAP_COMBINED
            #pragma multi_compile _ LIGHTMAP_ON
            #pragma multi_compile _ DYNAMICLIGHTMAP_ON
            #pragma multi_compile_fragment _ LOD_FADE_CROSSFADE
            #pragma multi_compile_fog
            #pragma multi_compile_fragment _ DEBUG_DISPLAY

            //--------------------------------------
            // GPU Instancing
            #pragma multi_compile_instancing
            #pragma instancing_options renderinglayer
            #include_with_pragmas "Packages/com.unity.render-pipelines.universal/ShaderLibrary/DOTS.hlsl"

            #include "Packages/com.unity.render-pipelines.universal/Shaders/LitInput.hlsl"
            #include "Packages/com.unity.render-pipelines.universal/Shaders/LitForwardPass.hlsl"
            sampler2D _MaskTex;
            half4 CustomLitPassFragment(Varyings input): SV_Target
            {
                UNITY_SETUP_INSTANCE_ID(input);
                UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
                
                #if defined(_PARALLAXMAP)
                #if defined(REQUIRES_TANGENT_SPACE_VIEW_DIR_INTERPOLATOR)
                    half3 viewDirTS = input.viewDirTS;
                #else
                    half3 viewDirWS = GetWorldSpaceNormalizeViewDir(input.positionWS);
                    half3 viewDirTS = GetViewDirectionTangentSpace(input.tangentWS, input.normalWS, viewDirWS);
                #endif
                    ApplyPerPixelDisplacement(viewDirTS, input.uv);
                #endif
                
                    SurfaceData surfaceData;
                    InitializeStandardLitSurfaceData(input.uv, surfaceData);
                
                #ifdef LOD_FADE_CROSSFADE
                    LODFadeCrossFade(input.positionCS);
                #endif
                
                    InputData inputData;
                    InitializeInputData(input, surfaceData.normalTS, inputData);
                    SETUP_DEBUG_TEXTURE_DATA(inputData, input.uv, _BaseMap);
                
                #ifdef _DBUFFER
                    ApplyDecalToSurfaceData(input.positionCS, surfaceData, inputData);
                #endif
                
                    half4 color = UniversalFragmentPBR(inputData, surfaceData);
                    color.rgb = MixFog(color.rgb, inputData.fogCoord);
                    color.a = OutputAlpha(color.a, IsSurfaceTypeTransparent(_Surface));
                    color.a *= tex2D(_MaskTex, input.uv).a;
                    clip(color.a - 0.1);
                    return color;
            }

            ENDHLSL
        }
    }

    FallBack "Hidden/Universal Render Pipeline/FallbackError"
}