GGJ_2019/Assets/AmplifyShaderEditor/Examples/Official/SimpleTerrain/SimpleTerrainFirstPass.shader

// Made with Amplify Shader Editor
// Available at the Unity Asset Store - http://u3d.as/y3X 
Shader "ASESampleShaders/Terrain/SimpleTerrainFirstPass"
{
	Properties
	{
		[HideInInspector]_Control("Control", 2D) = "white" {}
		[HideInInspector]_Splat3("Splat3", 2D) = "white" {}
		[HideInInspector]_Splat2("Splat2", 2D) = "white" {}
		[HideInInspector]_Splat1("Splat1", 2D) = "white" {}
		[HideInInspector]_Splat0("Splat0", 2D) = "white" {}
		[HideInInspector]_Normal0("Normal0", 2D) = "white" {}
		[HideInInspector]_Normal1("Normal1", 2D) = "white" {}
		[HideInInspector]_Normal2("Normal2", 2D) = "white" {}
		[HideInInspector]_Normal3("Normal3", 2D) = "white" {}
		[HideInInspector]_Smoothness3("Smoothness3", Range( 0 , 1)) = 1
		[HideInInspector]_Smoothness1("Smoothness1", Range( 0 , 1)) = 1
		[HideInInspector]_Smoothness0("Smoothness0", Range( 0 , 1)) = 1
		[HideInInspector]_Smoothness2("Smoothness2", Range( 0 , 1)) = 1
		_Wetness("Wetness", Float) = 0
		_Metallic("Metallic", Range( 0 , 1)) = 0
		[HideInInspector] _texcoord( "", 2D ) = "white" {}
		[HideInInspector] __dirty( "", Int ) = 1
	}

	SubShader
	{
		Tags{ "RenderType" = "Opaque"  "Queue" = "Geometry-100" "SplatCount"="8" }
		Cull Back
		CGPROGRAM
		#include "UnityShaderVariables.cginc"
		#pragma target 3.0
		#pragma multi_compile_fog
		#pragma exclude_renderers gles 
		#pragma surface surf Standard keepalpha vertex:vertexDataFunc  finalcolor:SplatmapFinalColor
		struct Input
		{
			float2 uv_texcoord;
			float3 worldPos;
		};

		uniform sampler2D _Control;
		uniform float4 _Control_ST;
		uniform sampler2D _Normal0;
		uniform sampler2D _Splat0;
		uniform float4 _Splat0_ST;
		uniform sampler2D _Normal1;
		uniform sampler2D _Splat1;
		uniform float4 _Splat1_ST;
		uniform sampler2D _Normal2;
		uniform sampler2D _Splat2;
		uniform float4 _Splat2_ST;
		uniform sampler2D _Normal3;
		uniform sampler2D _Splat3;
		uniform float4 _Splat3_ST;
		uniform float _Smoothness0;
		uniform float _Smoothness1;
		uniform float _Smoothness2;
		uniform float _Smoothness3;
		uniform float _Metallic;
		uniform float _Wetness;


		void SplatmapFinalColor( Input SurfaceIn , SurfaceOutputStandard SurfaceOut , inout fixed4 FinalColor )
		{
			FinalColor *= SurfaceOut.Alpha;
		}


		void vertexDataFunc( inout appdata_full v, out Input o )
		{
			UNITY_INITIALIZE_OUTPUT( Input, o );
			float localCalculateTangents16_g9 = ( 0.0 );
			v.tangent.xyz = cross ( v.normal, float3( 0, 0, 1 ) );
			v.tangent.w = -1;
			float3 temp_cast_0 = (localCalculateTangents16_g9).xxx;
			v.vertex.xyz += temp_cast_0;
		}

		void surf( Input i , inout SurfaceOutputStandard o )
		{
			float2 uv_Control = i.uv_texcoord * _Control_ST.xy + _Control_ST.zw;
			float4 tex2DNode5_g9 = tex2D( _Control, uv_Control );
			float dotResult20_g9 = dot( tex2DNode5_g9 , float4(1,1,1,1) );
			float SplatWeight22_g9 = dotResult20_g9;
			float localSplatClip74_g9 = ( SplatWeight22_g9 );
			float SplatWeight74_g9 = SplatWeight22_g9;
			#if !defined(SHADER_API_MOBILE) && defined(TERRAIN_SPLAT_ADDPASS)
				clip(SplatWeight74_g9 == 0.0f ? -1 : 1);
			#endif
			float4 SplatControl26_g9 = ( tex2DNode5_g9 / ( localSplatClip74_g9 + 0.001 ) );
			float4 temp_output_59_0_g9 = SplatControl26_g9;
			float2 uv_Splat0 = i.uv_texcoord * _Splat0_ST.xy + _Splat0_ST.zw;
			float2 uv_Splat1 = i.uv_texcoord * _Splat1_ST.xy + _Splat1_ST.zw;
			float2 uv_Splat2 = i.uv_texcoord * _Splat2_ST.xy + _Splat2_ST.zw;
			float2 uv_Splat3 = i.uv_texcoord * _Splat3_ST.xy + _Splat3_ST.zw;
			float4 weightedBlendVar8_g9 = temp_output_59_0_g9;
			float4 weightedBlend8_g9 = ( weightedBlendVar8_g9.x*tex2D( _Normal0, uv_Splat0 ) + weightedBlendVar8_g9.y*tex2D( _Normal1, uv_Splat1 ) + weightedBlendVar8_g9.z*tex2D( _Normal2, uv_Splat2 ) + weightedBlendVar8_g9.w*tex2D( _Normal3, uv_Splat3 ) );
			o.Normal = UnpackNormal( weightedBlend8_g9 );
			float4 appendResult33_g9 = (float4(1.0 , 1.0 , 1.0 , _Smoothness0));
			float4 appendResult36_g9 = (float4(1.0 , 1.0 , 1.0 , _Smoothness1));
			float4 appendResult39_g9 = (float4(1.0 , 1.0 , 1.0 , _Smoothness2));
			float4 appendResult42_g9 = (float4(1.0 , 1.0 , 1.0 , _Smoothness3));
			float4 weightedBlendVar9_g9 = temp_output_59_0_g9;
			float4 weightedBlend9_g9 = ( weightedBlendVar9_g9.x*( appendResult33_g9 * tex2D( _Splat0, uv_Splat0 ) ) + weightedBlendVar9_g9.y*( appendResult36_g9 * tex2D( _Splat1, uv_Splat1 ) ) + weightedBlendVar9_g9.z*( appendResult39_g9 * tex2D( _Splat2, uv_Splat2 ) ) + weightedBlendVar9_g9.w*( appendResult42_g9 * tex2D( _Splat3, uv_Splat3 ) ) );
			float4 MixDiffuse28_g9 = weightedBlend9_g9;
			o.Albedo = MixDiffuse28_g9.xyz;
			o.Metallic = _Metallic;
			float3 ase_vertex3Pos = mul( unity_WorldToObject, float4( i.worldPos , 1 ) );
			o.Smoothness = saturate( pow( ( 1.0 - ase_vertex3Pos.y ) , _Wetness ) );
			o.Alpha = SplatWeight22_g9;
		}

		ENDCG
	}

	Dependency "BaseMapShader"="ASESampleShaders/SimpleTerrainBase"
	Dependency "AddPassShader"="ASESampleShaders/Terrain/SimpleTerrainAddPass"
	Fallback "Nature/Terrain/Diffuse"
	CustomEditor "ASEMaterialInspector"
}
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