Initial push

-Fixed Shader Graph PBR template shadows and defines to match LW
-Fixed Shader Graph Unlit template defines to match LW
-Culling in depth pre pass fixed in LW PBR

ScriptableRenderPipeline/LightweightPipeline/LWRP/Editor/ShaderGraph/lightweightPBRExtraPasses.template

 	HLSLPROGRAM
 	// Required to compile gles 2.0 with standard srp library
 	#pragma prefer_hlslcc gles
+	#pragma exclude_renderers d3d11_9x
+
+	// -------------------------------------
+	// Material Keywords
+	#pragma shader_feature _ALPHATEST_ON
 
 	//--------------------------------------
 	// GPU Instancing
 
 	ZWrite On
 	ColorMask 0
+	Cull ${Culling}
 
 	HLSLPROGRAM
 	// Required to compile gles 2.0 with standard srp library
 	#pragma vertex DepthOnlyVertex
 	#pragma fragment DepthOnlyFragment
+
+	// -------------------------------------
+	// Material Keywords
+	#pragma shader_feature _ALPHATEST_ON
 
 	//--------------------------------------
 	// GPU Instancing

ScriptableRenderPipeline/LightweightPipeline/LWRP/Editor/ShaderGraph/lightweightPBRForwardPass.template

 	HLSLPROGRAM
     // Required to compile gles 2.0 with standard srp library
     #pragma prefer_hlslcc gles
+	#pragma exclude_renderers d3d11_9x
 	#pragma target 2.0
 
 	// -------------------------------------
 	#pragma multi_compile _ _MIXED_LIGHTING_SUBTRACTIVE
-	#pragma multi_compile _ FOG_LINEAR FOG_EXP2
+	#pragma multi_compile _ _SHADOWS_ENABLED
+	#pragma multi_compile_fog
 
 	//--------------------------------------
 	// GPU Instancing
 	    o.fogFactorAndVertexLight = half4(fogFactor, vertexLight);
 	    o.clipPos = clipPos;
 
-	    o.shadowCoord = ComputeShadowCoord(o.clipPos);
+	    #ifdef _SHADOWS_ENABLED
+		#if SHADOWS_SCREEN
+			o.shadowCoord = ComputeShadowCoord(clipPos);
+		#else
+			o.shadowCoord = TransformWorldToShadowCoord(lwWorldPos);
+		#endif
+		#endif
+		
 		return o;
 	}
 

ScriptableRenderPipeline/LightweightPipeline/LWRP/Editor/ShaderGraph/lightweightUnlitExtraPasses.template

-Pass
-{
-	Tags{"LightMode" = "ShadowCaster"}
-
-	ZWrite On
-	ZTest LEqual
-	Cull ${Culling}
-
-	HLSLPROGRAM
-	// Required to compile gles 2.0 with standard srp library
-	#pragma prefer_hlslcc gles
-	#pragma target 2.0
-
-	//--------------------------------------
-	// GPU Instancing
-	#pragma multi_compile_instancing
-
-	#pragma vertex ShadowPassVertex
-	#pragma fragment ShadowPassFragment
-
-	#include "LWRP/ShaderLibrary/InputSurfaceUnlit.hlsl"
-	#include "LWRP/ShaderLibrary/LightweightPassShadow.hlsl"
-
-	ENDHLSL
-}
 
 Pass
 {
+	Cull ${Culling}
+	#pragma exclude_renderers d3d11_9x
+
+	// -------------------------------------
+	// Material Keywords
+	#pragma shader_feature _ALPHATEST_ON
 
 	//--------------------------------------
 	// GPU Instancing

ScriptableRenderPipeline/LightweightPipeline/LWRP/Editor/ShaderGraph/lightweightUnlitPass.template

     HLSLPROGRAM
     // Required to compile gles 2.0 with standard srp library
     #pragma prefer_hlslcc gles
+    #pragma exclude_renderers d3d11_9x
+
     #pragma vertex vert
     #pragma fragment frag
     #pragma multi_compile_fog

ScriptableRenderPipeline/LightweightPipeline/LWRP/Shaders/LightweightStandard.shader

             // -------------------------------------
             // Material Keywords
             #pragma shader_feature _ALPHATEST_ON
-            #pragma shader_feature _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
 
             //--------------------------------------
             // GPU Instancing
 
             ZWrite On
             ColorMask 0
+            Cull[_Cull]
 
             HLSLPROGRAM
             // Required to compile gles 2.0 with standard srp library
             // -------------------------------------
             // Material Keywords
             #pragma shader_feature _ALPHATEST_ON
-            #pragma shader_feature _SMOOTHNESS_TEXTURE_ALBEDO_CHANNEL_A
 
             //--------------------------------------
             // GPU Instancing