Shader "Standard_2s"
{
	Properties
	{
		[LM_Albedo] [LM_Transparency] _Color("Color", Color) = (1,1,1,1)	
		[LM_MasterTilingOffset] [LM_Albedo] _MainTex("Albedo", 2D) = "white" {}
		
		[LM_TransparencyCutOff] _Cutoff("Alpha Cutoff", Range(0.0, 1.0)) = 0.5

		[LM_Glossiness] _Glossiness("Smoothness", Range(0.0, 1.0)) = 0.5
		[LM_Metallic] _Metallic("Metallic", Range(0.0, 1.0)) = 0.0
		[LM_Metallic] [LM_Glossiness] _MetallicGlossMap("Metallic", 2D) = "white" {}

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

		_Parallax ("Height Scale", Range (0.005, 0.08)) = 0.02
		_ParallaxMap ("Height Map", 2D) = "black" {}

		_OcclusionStrength("Strength", Range(0.0, 1.0)) = 1.0
		_OcclusionMap("Occlusion", 2D) = "white" {}

		[LM_Emission] _EmissionColor("Color", Color) = (0,0,0)
		[LM_Emission] _EmissionMap("Emission", 2D) = "white" {}
		
		_DetailMask("Detail Mask", 2D) = "white" {}

		_DetailAlbedoMap("Detail Albedo x2", 2D) = "grey" {}
		_DetailNormalMapScale("Scale", Float) = 1.0
		_DetailNormalMap("Normal Map", 2D) = "bump" {}

		[Enum(UV0,0,UV1,1)] _UVSec ("UV Set for secondary textures", Float) = 0

		// UI-only data
		[KeywordEnum(None, Realtime, Baked)]  _Lightmapping ("GI", Int) = 1
		[HideInInspector] _EmissionScaleUI("Scale", Float) = 0.0
		[HideInInspector] _EmissionColorUI("Color", Color) = (1,1,1)

		// Blending state
		[HideInInspector] _Mode ("__mode", Float) = 0.0
		[HideInInspector] _SrcBlend ("__src", Float) = 1.0
		[HideInInspector] _DstBlend ("__dst", Float) = 0.0
		[HideInInspector] _ZWrite ("__zw", Float) = 1.0
	}

	CGINCLUDE
		//@TODO: should this be pulled into a shader_feature, to be able to turn it off?
		#define _GLOSSYENV 1
		#define UNITY_SETUP_BRDF_INPUT MetallicSetup
	ENDCG

	SubShader
	{
		Tags { "RenderType"="Opaque" "PerformanceChecks"="False" }
		LOD 300
	

		// ------------------------------------------------------------------
		//  Base forward pass (directional light, emission, lightmaps, ...)
		Pass
		{
			Name "FORWARD" 
			Tags { "LightMode" = "ForwardBase" }

			Blend [_SrcBlend] [_DstBlend]
			Cull Off
			ZWrite [_ZWrite]

			CGPROGRAM
			#pragma target 3.0
			// TEMPORARY: GLES2.0 temporarily disabled to prevent errors spam on devices without textureCubeLodEXT
			#pragma exclude_renderers gles
			
			// -------------------------------------
					
			#pragma shader_feature _NORMALMAP
			#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
			#pragma shader_feature _EMISSION
			//ALWAYS ON shader_feature _GLOSSYENV
			#pragma shader_feature _METALLICGLOSSMAP 
			#pragma shader_feature ___ _DETAIL_MULX2
			#pragma shader_feature _PARALLAXMAP
			
			#pragma multi_compile_fwdbase
			#pragma multi_compile_fog
				
			#pragma vertex vertForwardBase
			#pragma fragment fragForwardBase

			#include "UnityStandardCore.cginc"

			ENDCG
		}
		// ------------------------------------------------------------------
		//  Additive forward pass (one light per pass)
		Pass
		{
			Name "FORWARD_DELTA"
			Tags { "LightMode" = "ForwardAdd" }
			Blend [_SrcBlend] One
			Fog { Color (0,0,0,0) } // in additive pass fog should be black
			Cull Off
			ZWrite Off
			ZTest LEqual
			

			CGPROGRAM
			#pragma target 3.0
			// GLES2.0 temporarily disabled to prevent errors spam on devices without textureCubeLodEXT
			#pragma exclude_renderers gles

			// -------------------------------------

			
			#pragma shader_feature _NORMALMAP
			#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
			#pragma shader_feature _METALLICGLOSSMAP
			#pragma shader_feature ___ _DETAIL_MULX2
			#pragma shader_feature _PARALLAXMAP
			
			#pragma multi_compile_fwdadd_fullshadows
			#pragma multi_compile_fog
			
			#pragma vertex vertForwardAdd
			#pragma fragment fragForwardAdd

			#include "UnityStandardCore.cginc"

			ENDCG
		}
		// ------------------------------------------------------------------
		//  Shadow rendering pass
		Pass {
			Name "ShadowCaster"
			Tags { "LightMode" = "ShadowCaster" }
			
			Cull Off				
			ZWrite On ZTest LEqual

			CGPROGRAM
			#pragma target 3.0
			// TEMPORARY: GLES2.0 temporarily disabled to prevent errors spam on devices without textureCubeLodEXT
			#pragma exclude_renderers gles
			
			// -------------------------------------


			#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
			#pragma multi_compile_shadowcaster

			#pragma vertex vertShadowCaster
			#pragma fragment fragShadowCaster

			#include "UnityStandardShadow.cginc"

			ENDCG
		}
		// ------------------------------------------------------------------
		//  Deferred pass
		Pass
		{
			Name "DEFERRED"
			Tags { "LightMode" = "Deferred" }
			
			Cull Off

			CGPROGRAM
			#pragma target 3.0
			// TEMPORARY: GLES2.0 temporarily disabled to prevent errors spam on devices without textureCubeLodEXT
			#pragma exclude_renderers nomrt gles
			

			// -------------------------------------

			#pragma shader_feature _NORMALMAP
			#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
			#pragma shader_feature _EMISSION
			//ALWAYS ON shader_feature _GLOSSYENV
			#pragma shader_feature _METALLICGLOSSMAP
			#pragma shader_feature ___ _DETAIL_MULX2
			#pragma shader_feature _PARALLAXMAP

			#pragma multi_compile ___ UNITY_HDR_ON
			#pragma multi_compile LIGHTMAP_OFF LIGHTMAP_ON
			#pragma multi_compile DIRLIGHTMAP_OFF DIRLIGHTMAP_COMBINED DIRLIGHTMAP_SEPARATE
			#pragma multi_compile DYNAMICLIGHTMAP_OFF DYNAMICLIGHTMAP_ON
			
			#pragma vertex vertDeferred
			#pragma fragment fragDeferred

			#include "UnityStandardCore.cginc"

			ENDCG
		}

		// ------------------------------------------------------------------
		// Extracts information for lightmapping, GI (emission, albedo, ...)
		// This pass it not used during regular rendering.
		Pass
		{
			Name "META" 
			Tags { "LightMode"="Meta" }

			Cull Off

			CGPROGRAM
			#pragma vertex vert_meta
			#pragma fragment frag_meta

			#pragma shader_feature _EMISSION
			#pragma shader_feature _METALLICGLOSSMAP
			#pragma shader_feature ___ _DETAIL_MULX2

			#include "UnityStandardMeta.cginc"
			ENDCG
		}
	}

	SubShader
	{
		Tags { "RenderType"="Opaque" "PerformanceChecks"="False" }
		LOD 150

		// ------------------------------------------------------------------
		//  Base forward pass (directional light, emission, lightmaps, ...)
		Pass
		{
			Name "FORWARD" 
			Tags { "LightMode" = "ForwardBase" }

			Blend [_SrcBlend] [_DstBlend]
			Cull Off
			ZWrite [_ZWrite]

			CGPROGRAM
			#pragma target 2.0
			
			#pragma shader_feature _NORMALMAP
			#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
			#pragma shader_feature _EMISSION 
			// ALWAYS ON shader_feature _GLOSSYENV
			#pragma shader_feature _METALLICGLOSSMAP 
			#pragma shader_feature ___ _DETAIL_MULX2
			// SM2.0: NOT SUPPORTED shader_feature _PARALLAXMAP

			#pragma skip_variants SHADOWS_SOFT DIRLIGHTMAP_COMBINED DIRLIGHTMAP_SEPARATE

			#pragma multi_compile_fwdbase
			#pragma multi_compile_fog
	
			#pragma vertex vertForwardBase
			#pragma fragment fragForwardBase

			#include "UnityStandardCore.cginc"

			ENDCG
		}
		// ------------------------------------------------------------------
		//  Additive forward pass (one light per pass)
		Pass
		{
			Name "FORWARD_DELTA"
			Tags { "LightMode" = "ForwardAdd" }
			Blend [_SrcBlend] One
			Fog { Color (0,0,0,0) } // in additive pass fog should be black
			Cull Off
			ZWrite Off
			ZTest LEqual
			
			CGPROGRAM
			#pragma target 2.0

			#pragma shader_feature _NORMALMAP
			#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
			#pragma shader_feature _METALLICGLOSSMAP
			#pragma shader_feature ___ _DETAIL_MULX2
			// SM2.0: NOT SUPPORTED shader_feature _PARALLAXMAP
			#pragma skip_variants SHADOWS_SOFT
			
			#pragma multi_compile_fwdadd_fullshadows
			#pragma multi_compile_fog
			
			#pragma vertex vertForwardAdd
			#pragma fragment fragForwardAdd

			#include "UnityStandardCore.cginc"

			ENDCG
		}
		// ------------------------------------------------------------------
		//  Shadow rendering pass
		Pass {
			Name "ShadowCaster"
			Tags { "LightMode" = "ShadowCaster" }
			Cull Off
			ZWrite On ZTest LEqual

			CGPROGRAM
			#pragma target 2.0

			#pragma shader_feature _ _ALPHATEST_ON _ALPHABLEND_ON _ALPHAPREMULTIPLY_ON
			#pragma skip_variants SHADOWS_SOFT
			#pragma multi_compile_shadowcaster

			#pragma vertex vertShadowCaster
			#pragma fragment fragShadowCaster

			#include "UnityStandardShadow.cginc"

			ENDCG
		}

		// ------------------------------------------------------------------
		// Extracts information for lightmapping, GI (emission, albedo, ...)
		// This pass it not used during regular rendering.
		Pass
		{
			Name "META" 
			Tags { "LightMode"="Meta" }

			Cull Off
			
			CGPROGRAM
			#pragma vertex vert_meta
			#pragma fragment frag_meta

			#pragma shader_feature _EMISSION
			#pragma shader_feature _METALLICGLOSSMAP
			#pragma shader_feature ___ _DETAIL_MULX2

			#include "UnityStandardMeta.cginc"
			ENDCG
		}
	}

	FallBack "VertexLit"
	CustomEditor "StandardShaderGUI"
}