Shader "Unreal/M_Blue_Building_8"
{
	Properties
	{
		_MainTex("MainTex (RGB)", 2D) = "white" {}
		Material_Texture2D_0( "Normal_Map", 2D ) = "white" {}
		Material_Texture2D_1( "Emissive_Map", 2D ) = "white" {}
		Material_Texture2D_2( "ColorMap", 2D ) = "white" {}
		Material_Texture2D_3( "MetalicMap", 2D ) = "white" {}
		Material_Texture2D_4( "RoughnessMap1", 2D ) = "white" {}

		View_BufferSizeAndInvSize( "View_BufferSizeAndInvSize", Vector ) = ( 1920,1080,0.00052, 0.00092 )//1920,1080,1/1920, 1/1080
	}
	SubShader 
	{
		 Tags { "RenderType" = "Opaque" }
		//BLEND_ON Tags { "RenderType" = "Transparent"  "Queue" = "Transparent" }
		
		//Blend SrcAlpha OneMinusSrcAlpha
		//Cull Off

		CGPROGRAM

		#include "UnityPBSLighting.cginc"
		 #pragma surface surf Standard vertex:vert addshadow
		//BLEND_ON #pragma surface surf Standard vertex:vert alpha:fade addshadow
		
		#pragma target 5.0

		#define NUM_TEX_COORD_INTERPOLATORS 1
		#define NUM_CUSTOM_VERTEX_INTERPOLATORS 0

		struct Input
		{
			//float3 Normal;
			float2 uv_MainTex : TEXCOORD0;
			//float2 uv2_Material_Texture2D_0 : TEXCOORD1;
			float2 uv2_MainTex : TEXCOORD1;			
			float4 color : COLOR;
			float4 tangent;
			//float4 normal;
			float3 viewDir;
			float4 screenPos;
			float3 worldPos;
			//float3 worldNormal;
			float3 normal2;
			INTERNAL_DATA
		};
		void vert( inout appdata_full i, out Input o )
		{
			float3 p_normal = mul( float4( i.normal, 0.0f ), unity_WorldToObject );
			//half4 p_tangent = mul( unity_ObjectToWorld,i.tangent );

			//half3 normal_input = normalize( p_normal.xyz );
			//half3 tangent_input = normalize( p_tangent.xyz );
			//half3 binormal_input = cross( p_normal.xyz,tangent_input.xyz ) * i.tangent.w;
			UNITY_INITIALIZE_OUTPUT( Input, o );

			//o.worldNormal = p_normal;
			o.normal2 = p_normal;
			o.tangent = i.tangent;
			//o.binormal_input = binormal_input;
		}
		uniform sampler2D _MainTex;
		/*
		struct SurfaceOutputStandard
		{
		fixed3 Albedo;		// base (diffuse or specular) color
		fixed3 Normal;		// tangent space normal, if written
		half3 Emission;
		half Metallic;		// 0=non-metal, 1=metal
		// Smoothness is the user facing name, it should be perceptual smoothness but user should not have to deal with it.
		// Everywhere in the code you meet smoothness it is perceptual smoothness
		half Smoothness;	// 0=rough, 1=smooth
		half Occlusion;		// occlusion (default 1)
		fixed Alpha;		// alpha for transparencies
		};
		*/


		#define Texture2D sampler2D
		#define TextureCube samplerCUBE
		#define SamplerState int
		//struct Material
		//{
			//samplers start
			uniform sampler2D    Material_Texture2D_0;
			uniform SamplerState Material_Texture2D_0Sampler;
			uniform sampler2D    Material_Texture2D_1;
			uniform SamplerState Material_Texture2D_1Sampler;
			uniform sampler2D    Material_Texture2D_2;
			uniform SamplerState Material_Texture2D_2Sampler;
			uniform sampler2D    Material_Texture2D_3;
			uniform SamplerState Material_Texture2D_3Sampler;
			uniform sampler2D    Material_Texture2D_4;
			uniform SamplerState Material_Texture2D_4Sampler;
			
		//};
		struct MaterialStruct
		{
			float4 VectorExpressions[10];
			float4 ScalarExpressions[7];
		};
		struct ViewStruct
		{
			float GameTime;
			float MaterialTextureMipBias;
			SamplerState MaterialTextureBilinearWrapedSampler;
			SamplerState MaterialTextureBilinearClampedSampler;
			float4 PrimitiveSceneData[ 40 ];
			float2 TemporalAAParams;
			float2 ViewRectMin;
			float4 ViewSizeAndInvSize;
			float MaterialTextureDerivativeMultiply;
		};
		struct ResolvedViewStruct
		{
			float3 WorldCameraOrigin;
			float4 ScreenPositionScaleBias;
			float4x4 TranslatedWorldToView;
			float4x4 TranslatedWorldToCameraView;
			float4x4 ViewToTranslatedWorld;
			float4x4 CameraViewToTranslatedWorld;
		};
		struct PrimitiveStruct
		{
			float4x4 WorldToLocal;
			float4x4 LocalToWorld;
		};

		ViewStruct View;
		ResolvedViewStruct ResolvedView;
		PrimitiveStruct Primitive;
		uniform float4 View_BufferSizeAndInvSize;
		uniform int Material_Wrap_WorldGroupSettings;		

		#include "UnrealCommon.cginc"

		MaterialStruct Material;
void InitializeExpressions()
{
	Material.VectorExpressions[0] = float4(0.000000,0.000000,0.000000,0.000000);//SelectionColor
	Material.VectorExpressions[1] = float4(-0.000000,-0.000000,-0.000000,-0.000000);//(Unknown)
	Material.VectorExpressions[2] = float4(1.000000,1.000000,1.000000,1.000000);//(Unknown)
	Material.VectorExpressions[3] = float4(1.000000,-0.000000,-0.000000,-0.000000);//(Unknown)
	Material.VectorExpressions[4] = float4(0.000000,1.000000,1.000000,1.000000);//(Unknown)
	Material.VectorExpressions[5] = float4(1.000000,1.000000,1.000000,1.000000);//Emissive_Color
	Material.VectorExpressions[6] = float4(1.000000,1.000000,1.000000,0.000000);//(Unknown)
	Material.VectorExpressions[7] = float4(0.000000,0.000000,0.000000,0.000000);//(Unknown)
	Material.VectorExpressions[8] = float4(0.603827,0.603827,0.603827,1.000000);//Color
	Material.VectorExpressions[9] = float4(0.603827,0.603827,0.603827,0.000000);//(Unknown)
	Material.ScalarExpressions[0] = float4(0.000000,0.000000,-0.000000,-0.000000);//Offset_U Offset_V (Unknown) (Unknown)
	Material.ScalarExpressions[1] = float4(1.000000,1.000000,0.000000,0.000000);//Tile_V Tile_U Rotation_Angle (Unknown)
	Material.ScalarExpressions[2] = float4(0.000000,0.000000,-0.000000,1.000000);//(Unknown) (Unknown) (Unknown) (Unknown)
	Material.ScalarExpressions[3] = float4(4.000000,-3.000000,1.000000,0.000000);//Normal_Strength (Unknown) Emissive_Map_Exposure Emissive_Mixed_Strength
	Material.ScalarExpressions[4] = float4(200.000000,0.000000,0.000000,0.000000);//Emissive_Glow_Strength (Unknown) Hue_Shift (Unknown)
	Material.ScalarExpressions[5] = float4(0.000000,1.000000,1.000000,0.000000);//Exposure (Unknown) Mix_Strength Desaturation
	Material.ScalarExpressions[6] = float4(1.000000,0.400000,0.600000,0.000000);//MetalicMap_Amount RoughnessMap1_Contrast RoughnessMap1_Strength (Unknown)
}
void CalcPixelMaterialInputs(in out FMaterialPixelParameters Parameters, in out FPixelMaterialInputs PixelMaterialInputs)
{
	float3 WorldNormalCopy = Parameters.WorldNormal;

	// Initial calculations (required for Normal)
	MaterialFloat2 Local0 = (Parameters.TexCoords[0].xy + Material.VectorExpressions[1].rg);
	MaterialFloat2 Local1 = (Local0 * Material.VectorExpressions[2].rg);
	MaterialFloat2 Local2 = ((MaterialFloat2(0.50000000,0.50000000) * -1.00000000) + Local1);
	MaterialFloat Local3 = dot(Local2, Material.VectorExpressions[3].rg);
	MaterialFloat Local4 = dot(Local2, Material.VectorExpressions[4].rg);
	MaterialFloat2 Local5 = (MaterialFloat2(0.50000000,0.50000000) + MaterialFloat2(Local3,Local4));
	MaterialFloat4 Local6 = UnpackNormalMap(Texture2DSampleBias(Material_Texture2D_0, Material_Texture2D_0Sampler,Local5,View.MaterialTextureMipBias));
	MaterialFloat3 Local7 = lerp(Local6.rgb,MaterialFloat3(0.00000000,0.00000000,1.00000000),MaterialFloat(Material.ScalarExpressions[3].y));

	// The Normal is a special case as it might have its own expressions and also be used to calculate other inputs, so perform the assignment here
	PixelMaterialInputs.Normal = Local7;


	// Note that here MaterialNormal can be in world space or tangent space
	float3 MaterialNormal = GetMaterialNormal(Parameters, PixelMaterialInputs);

#if MATERIAL_TANGENTSPACENORMAL
#if SIMPLE_FORWARD_SHADING
	Parameters.WorldNormal = float3(0, 0, 1);
#endif

#if FEATURE_LEVEL >= FEATURE_LEVEL_SM4
	// Mobile will rely on only the final normalize for performance
	MaterialNormal = normalize(MaterialNormal);
#endif

	// normalizing after the tangent space to world space conversion improves quality with sheared bases (UV layout to WS causes shrearing)
	// use full precision normalize to avoid overflows
	Parameters.WorldNormal = TransformTangentNormalToWorld(Parameters.TangentToWorld, MaterialNormal);

#else //MATERIAL_TANGENTSPACENORMAL

	Parameters.WorldNormal = normalize(MaterialNormal);

#endif //MATERIAL_TANGENTSPACENORMAL

#if MATERIAL_TANGENTSPACENORMAL
	// flip the normal for backfaces being rendered with a two-sided material
	Parameters.WorldNormal *= Parameters.TwoSidedSign;
#endif

	Parameters.ReflectionVector = ReflectionAboutCustomWorldNormal(Parameters, Parameters.WorldNormal, false);

#if !PARTICLE_SPRITE_FACTORY
	Parameters.Particle.MotionBlurFade = 1.0f;
#endif // !PARTICLE_SPRITE_FACTORY

	// Now the rest of the inputs
	MaterialFloat4 Local8 = ProcessMaterialColorTextureLookup(Texture2DSampleBias(Material_Texture2D_1, Material_Texture2D_1Sampler,Local5,View.MaterialTextureMipBias));
	MaterialFloat3 Local9 = PositiveClampedPow(Local8.rgb,Material.ScalarExpressions[3].z);
	MaterialFloat3 Local10 = lerp(Local9,Material.VectorExpressions[6].rgb,MaterialFloat(Material.ScalarExpressions[3].w));
	MaterialFloat3 Local11 = (Local10 * Material.ScalarExpressions[4].x);
	MaterialFloat3 Local12 = lerp(Local11,Material.VectorExpressions[7].rgb,MaterialFloat(Material.ScalarExpressions[4].y));
	MaterialFloat4 Local13 = ProcessMaterialColorTextureLookup(Texture2DSampleBias(Material_Texture2D_2, Material_Texture2D_2Sampler,Local5,View.MaterialTextureMipBias));
	MaterialFloat3 Local14 = PositiveClampedPow(Local13.rgb,Material.ScalarExpressions[5].y);
	MaterialFloat3 Local15 = lerp(Material.VectorExpressions[9].rgb,Local14,MaterialFloat(Material.ScalarExpressions[5].z));
	MaterialFloat3 Local16 = RotateAboutAxis(MaterialFloat4((MaterialFloat3(1.00000000,1.00000000,1.00000000) / sqrt(dot(MaterialFloat3(1.00000000,1.00000000,1.00000000),MaterialFloat3(1.00000000,1.00000000,1.00000000)))),Material.ScalarExpressions[4].w),MaterialFloat3(0.00000000,0.00000000,0.00000000),Local15);
	MaterialFloat3 Local17 = (Local16 + Local15);
	MaterialFloat Local18 = dot(Local17, MaterialFloat3(0.30000001,0.58999997,0.11000000));
	MaterialFloat3 Local19 = lerp(Local17,MaterialFloat3(Local18,Local18,Local18),MaterialFloat(Material.ScalarExpressions[5].w));
	MaterialFloat4 Local20 = ProcessMaterialColorTextureLookup(Texture2DSampleBias(Material_Texture2D_3, Material_Texture2D_3Sampler,Local5,View.MaterialTextureMipBias));
	MaterialFloat3 Local21 = lerp(MaterialFloat3(0.00000000,0.00000000,0.00000000),Local20.rgb,MaterialFloat(Material.ScalarExpressions[6].x));
	MaterialFloat4 Local22 = ProcessMaterialColorTextureLookup(Texture2DSampleBias(Material_Texture2D_4, Material_Texture2D_4Sampler,Local5,View.MaterialTextureMipBias));
	MaterialFloat3 Local23 = PositiveClampedPow(Local22.rgb,Material.ScalarExpressions[6].y);
	MaterialFloat3 Local24 = lerp(MaterialFloat3(0.00000000,0.00000000,0.00000000),Local23,MaterialFloat(Material.ScalarExpressions[6].z));

	PixelMaterialInputs.EmissiveColor = Local12;
	PixelMaterialInputs.Opacity = 1.00000000;
	PixelMaterialInputs.OpacityMask = 1.00000000;
	PixelMaterialInputs.BaseColor = Local19;
	PixelMaterialInputs.Metallic = Local21;
	PixelMaterialInputs.Specular = 0.50000000;
	PixelMaterialInputs.Roughness = Local24;
	PixelMaterialInputs.Anisotropy = 0.00000000;
	PixelMaterialInputs.Tangent = MaterialFloat3(1.00000000,0.00000000,0.00000000);
	PixelMaterialInputs.Subsurface = 0;
	PixelMaterialInputs.AmbientOcclusion = 1.00000000;
	PixelMaterialInputs.Refraction = 0;
	PixelMaterialInputs.PixelDepthOffset = 0.00000000;
	PixelMaterialInputs.ShadingModel = 1;


#if MATERIAL_USES_ANISOTROPY
	Parameters.WorldTangent = CalculateAnisotropyTangent(Parameters, PixelMaterialInputs);
#else
	Parameters.WorldTangent = 0;
#endif
}

		void surf( Input In, inout SurfaceOutputStandard o )
		{
			InitializeExpressions();

			float3 Z3 = float3( 0, 0, 0 );
			float4 Z4 = float4( 0, 0, 0, 0 );

			float3 UnrealWorldPos = float3( In.worldPos.x, In.worldPos.y, In.worldPos.z );
			
			float3 UnrealNormal = In.normal2;

			FMaterialPixelParameters Parameters;
			#if NUM_TEX_COORD_INTERPOLATORS > 0			
				Parameters.TexCoords[ 0 ] = float2( In.uv_MainTex.x, In.uv_MainTex.y );
			#endif
			#if NUM_TEX_COORD_INTERPOLATORS > 1
				Parameters.TexCoords[ 1 ] = float2( In.uv2_MainTex.x, 1.0 - In.uv2_MainTex.y );
			#endif
			#if NUM_TEX_COORD_INTERPOLATORS > 2
			for( int i = 2; i < NUM_TEX_COORD_INTERPOLATORS; i++ )
			{
				Parameters.TexCoords[ i ] = float2( In.uv_MainTex.x, In.uv_MainTex.y );
			}
			#endif
			Parameters.VertexColor = In.color;
			Parameters.WorldNormal = UnrealNormal;
			Parameters.ReflectionVector = half3( 0, 0, 1 );
			//Parameters.CameraVector = normalize( _WorldSpaceCameraPos.xyz - UnrealWorldPos.xyz );
			Parameters.CameraVector = mul( ( float3x3 )unity_CameraToWorld, float3( 0, 0, 1 ) ) * -1;
			Parameters.LightVector = half3( 0, 0, 0 );
			float4 screenpos = In.screenPos;
			screenpos /= screenpos.w;
			//screenpos.y = 1 - screenpos.y;
			Parameters.SvPosition = float4( screenpos.x, screenpos.y, 0, 0 );
			Parameters.ScreenPosition = Parameters.SvPosition;

			Parameters.UnMirrored = 1;

			Parameters.TwoSidedSign = 1;
			

			float3 InWorldNormal = UnrealNormal;
			float4 InTangent = In.tangent;
			float4 tangentWorld = float4( UnityObjectToWorldDir( InTangent.xyz ), InTangent.w );
			tangentWorld.xyz = normalize( tangentWorld.xyz );
			float3x3 tangentToWorld = CreateTangentToWorldPerVertex( InWorldNormal, tangentWorld.xyz, tangentWorld.w );
			Parameters.TangentToWorld = tangentToWorld;
			//Parameters.TangentToWorld = float3x3( Z3, Z3, Z3 );

			//WorldAlignedTexturing in UE relies on the fact that coords there are 100x larger, prepare values for that
			//but watch out for any computation that might get skewed as a side effect
			UnrealWorldPos = UnrealWorldPos * 100;

			//Parameters.TangentToWorld = half3x3( float3( 1, 1, 1 ), float3( 1, 1, 1 ), UnrealNormal.xyz );
			Parameters.AbsoluteWorldPosition = UnrealWorldPos;
			Parameters.WorldPosition_CamRelative = UnrealWorldPos;
			Parameters.WorldPosition_NoOffsets = UnrealWorldPos;

			Parameters.WorldPosition_NoOffsets_CamRelative = Parameters.WorldPosition_CamRelative;
			Parameters.LightingPositionOffset = float3( 0, 0, 0 );

			Parameters.AOMaterialMask = 0;

			Parameters.Particle.RelativeTime = 0;
			Parameters.Particle.MotionBlurFade;
			Parameters.Particle.Random = 0;
			Parameters.Particle.Velocity = half4( 1, 1, 1, 1 );
			Parameters.Particle.Color = half4( 1, 1, 1, 1 );
			Parameters.Particle.TranslatedWorldPositionAndSize = float4( UnrealWorldPos, 0 );
			Parameters.Particle.MacroUV = half4(0,0,1,1);
			Parameters.Particle.DynamicParameter = half4(0,0,0,0);
			Parameters.Particle.LocalToWorld = float4x4( Z4, Z4, Z4, Z4 );
			Parameters.Particle.Size = float2(1,1);
			Parameters.TexCoordScalesParams = float2( 0, 0 );
			Parameters.PrimitiveId = 0;

			FPixelMaterialInputs PixelMaterialInputs = ( FPixelMaterialInputs)0;
			PixelMaterialInputs.Normal = float3( 0, 0, 1 );
			PixelMaterialInputs.ShadingModel = 0;

			//Extra
			View.GameTime = -_Time.y;// _Time is (t/20, t, t*2, t*3), run in reverse because it works better with ElementalDemo
			View.MaterialTextureMipBias = 0.0;
			View.TemporalAAParams = float2( 0, 0 );
			View.ViewRectMin = float2( 0, 0 );
			View.ViewSizeAndInvSize = View_BufferSizeAndInvSize;
			View.MaterialTextureDerivativeMultiply = 1.0f;
			for( int i2 = 0; i2 < 40; i2++ )
				View.PrimitiveSceneData[ i2 ] = float4( 0, 0, 0, 0 );

			uint PrimitiveBaseOffset = Parameters.PrimitiveId * PRIMITIVE_SCENE_DATA_STRIDE;
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 0 ] = unity_ObjectToWorld[ 0 ];//LocalToWorld
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 1 ] = unity_ObjectToWorld[ 1 ];//LocalToWorld
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 2 ] = unity_ObjectToWorld[ 2 ];//LocalToWorld
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 3 ] = unity_ObjectToWorld[ 3 ];//LocalToWorld
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 6 ] = unity_WorldToObject[ 0 ];//WorldToLocal
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 7 ] = unity_WorldToObject[ 1 ];//WorldToLocal
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 8 ] = unity_WorldToObject[ 2 ];//WorldToLocal
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 9 ] = unity_WorldToObject[ 3 ];//WorldToLocal
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 10 ] = unity_WorldToObject[ 0 ];//PreviousLocalToWorld
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 11 ] = unity_WorldToObject[ 1 ];//PreviousLocalToWorld
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 12 ] = unity_WorldToObject[ 2 ];//PreviousLocalToWorld
			View.PrimitiveSceneData[ PrimitiveBaseOffset + 13 ] = unity_WorldToObject[ 3 ];//PreviousLocalToWorld

			ResolvedView.WorldCameraOrigin = _WorldSpaceCameraPos.xyz;
			ResolvedView.ScreenPositionScaleBias = float4( 1, 1, 0, 0 );
			ResolvedView.TranslatedWorldToView = unity_MatrixV;
			ResolvedView.TranslatedWorldToCameraView = unity_MatrixV;
			ResolvedView.ViewToTranslatedWorld = unity_MatrixInvV;
			ResolvedView.CameraViewToTranslatedWorld = unity_MatrixInvV;
			Primitive.WorldToLocal = unity_WorldToObject;
			Primitive.LocalToWorld = unity_ObjectToWorld;
			CalcPixelMaterialInputs( Parameters, PixelMaterialInputs );

			#define HAS_WORLDSPACE_NORMAL 0
			#if HAS_WORLDSPACE_NORMAL
				PixelMaterialInputs.Normal = mul( PixelMaterialInputs.Normal, (MaterialFloat3x3)( transpose( Parameters.TangentToWorld ) ) );
			#endif

			//Debug
			//PixelMaterialInputs.BaseColor = Texture2DSample( Material_Texture2D_1, Material_Texture2D_1Sampler, Parameters.TexCoords[ 0 ].xy );

			o.Albedo = PixelMaterialInputs.BaseColor.rgb;
			o.Alpha = PixelMaterialInputs.Opacity;
			//if( PixelMaterialInputs.OpacityMask < 0.333 ) discard;

			o.Metallic = PixelMaterialInputs.Metallic;
			o.Smoothness = 1.0 - PixelMaterialInputs.Roughness;
			o.Normal = normalize( PixelMaterialInputs.Normal );
			o.Emission = PixelMaterialInputs.EmissiveColor.rgb;
			o.Occlusion = PixelMaterialInputs.AmbientOcclusion;
		}
		ENDCG
	}
	Fallback "Diffuse"
}