vr-space-station/Assets/ThirdParty/AmplifyShaderEditor/Examples/Built-In/SimpleTerrain/GrassBlades.shader

// Made with Amplify Shader Editor
// Available at the Unity Asset Store - http://u3d.as/y3X 
Shader "GrassBlades"
{
	Properties
	{
		_TessValue( "Max Tessellation", Range( 1, 32 ) ) = 15
		_TreeOffset("Tree Offset", Vector) = (0,5,0,0)
		_MainTex("MainTex", 2D) = "white" {}
		_TreeInstanceColor("TreeInstanceColor", Color) = (0,0,0,0)
		_TreeInstanceScale("_TreeInstanceScale", Vector) = (0,0,0,0)
		_SecondaryFactor("SecondaryFactor", Float) = 0
		_PrimaryFactor("PrimaryFactor", Float) = 0
		_EdgeFlutter("EdgeFlutter", Float) = 1
		_BranchPhase("BranchPhase", Float) = 0
		[HideInInspector] _texcoord( "", 2D ) = "white" {}
		[HideInInspector] __dirty( "", Int ) = 1
	}

	SubShader
	{
		Tags{ "RenderType" = "TreeBillboard"  "Queue" = "Transparent+0" "IgnoreProjector" = "True" }
		Cull Off
		ZWrite Off
		Blend SrcAlpha OneMinusSrcAlpha
		
		CGINCLUDE
		#include "UnityPBSLighting.cginc"
		#include "Lighting.cginc"
		#pragma target 4.6
		#include "TerrainEngine.cginc"
		struct Input
		{
			float3 worldPos;
			float2 uv_texcoord;
		};

		uniform float _BranchPhase;
		uniform float _EdgeFlutter;
		uniform float _PrimaryFactor;
		uniform float _SecondaryFactor;
		uniform float3 _TreeOffset;
		uniform sampler2D _MainTex;
		uniform float4 _MainTex_ST;
		uniform float _TessValue;


		float4 WindAnimateVertex1_g2( float4 Pos , float3 Normal , float4 AnimParams )
		{
			return AnimateVertex(Pos,Normal,AnimParams);
		}


		float4 tessFunction( )
		{
			return _TessValue;
		}

		void vertexDataFunc( inout appdata_full v )
		{
			float4 ase_vertex4Pos = v.vertex;
			float4 Pos1_g2 = ase_vertex4Pos;
			float3 ase_vertexNormal = v.normal.xyz;
			float3 Normal1_g2 = ase_vertexNormal;
			float3 ase_worldPos = mul( unity_ObjectToWorld, v.vertex );
			float3 normalizeResult52 = normalize( ase_worldPos );
			float4 appendResult15 = (float4(_BranchPhase , ( _EdgeFlutter * ( (normalizeResult52).x + (normalizeResult52).z ) ) , _PrimaryFactor , _SecondaryFactor));
			float4 AnimParams1_g2 = appendResult15;
			float4 localWindAnimateVertex1_g2 = WindAnimateVertex1_g2( Pos1_g2 , Normal1_g2 , AnimParams1_g2 );
			v.vertex.xyz = ( ( localWindAnimateVertex1_g2 * _TreeInstanceScale ) + float4( _TreeOffset , 0.0 ) ).xyz;
		}

		void surf( Input i , inout SurfaceOutputStandard o )
		{
			float2 uv_MainTex = i.uv_texcoord * _MainTex_ST.xy + _MainTex_ST.zw;
			float4 tex2DNode3 = tex2D( _MainTex, uv_MainTex );
			o.Albedo = ( _TreeInstanceColor * tex2DNode3 ).rgb;
			o.Alpha = tex2DNode3.a;
		}

		ENDCG
		CGPROGRAM
		#pragma surface surf Standard keepalpha fullforwardshadows vertex:vertexDataFunc tessellate:tessFunction 

		ENDCG
		Pass
		{
			Name "ShadowCaster"
			Tags{ "LightMode" = "ShadowCaster" }
			ZWrite On
			CGPROGRAM
			#pragma vertex vert
			#pragma fragment frag
			#pragma target 4.6
			#pragma multi_compile_shadowcaster
			#pragma multi_compile UNITY_PASS_SHADOWCASTER
			#pragma skip_variants FOG_LINEAR FOG_EXP FOG_EXP2
			#include "HLSLSupport.cginc"
			#if ( SHADER_API_D3D11 || SHADER_API_GLCORE || SHADER_API_GLES3 || SHADER_API_METAL || SHADER_API_VULKAN )
				#define CAN_SKIP_VPOS
			#endif
			#include "UnityCG.cginc"
			#include "Lighting.cginc"
			#include "UnityPBSLighting.cginc"
			sampler3D _DitherMaskLOD;
			struct v2f
			{
				V2F_SHADOW_CASTER;
				float2 customPack1 : TEXCOORD1;
				float3 worldPos : TEXCOORD2;
				UNITY_VERTEX_INPUT_INSTANCE_ID
			};
			v2f vert( appdata_full v )
			{
				v2f o;
				UNITY_SETUP_INSTANCE_ID( v );
				UNITY_INITIALIZE_OUTPUT( v2f, o );
				UNITY_TRANSFER_INSTANCE_ID( v, o );
				Input customInputData;
				vertexDataFunc( v );
				float3 worldPos = mul( unity_ObjectToWorld, v.vertex ).xyz;
				half3 worldNormal = UnityObjectToWorldNormal( v.normal );
				o.customPack1.xy = customInputData.uv_texcoord;
				o.customPack1.xy = v.texcoord;
				o.worldPos = worldPos;
				TRANSFER_SHADOW_CASTER_NORMALOFFSET( o )
				return o;
			}
			half4 frag( v2f IN
			#if !defined( CAN_SKIP_VPOS )
			, UNITY_VPOS_TYPE vpos : VPOS
			#endif
			) : SV_Target
			{
				UNITY_SETUP_INSTANCE_ID( IN );
				Input surfIN;
				UNITY_INITIALIZE_OUTPUT( Input, surfIN );
				surfIN.uv_texcoord = IN.customPack1.xy;
				float3 worldPos = IN.worldPos;
				half3 worldViewDir = normalize( UnityWorldSpaceViewDir( worldPos ) );
				surfIN.worldPos = worldPos;
				SurfaceOutputStandard o;
				UNITY_INITIALIZE_OUTPUT( SurfaceOutputStandard, o )
				surf( surfIN, o );
				#if defined( CAN_SKIP_VPOS )
				float2 vpos = IN.pos;
				#endif
				half alphaRef = tex3D( _DitherMaskLOD, float3( vpos.xy * 0.25, o.Alpha * 0.9375 ) ).a;
				clip( alphaRef - 0.01 );
				SHADOW_CASTER_FRAGMENT( IN )
			}
			ENDCG
		}
	}
	Fallback "Diffuse"
	CustomEditor "ASEMaterialInspector"
}
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