Add proper configuration of unlit.shader to render with new depth test

ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/Unlit.shader

 
         Pass
         {
+            Name "DepthOnly"
+            Tags{ "LightMode" = "DepthOnly" }
+
+            Cull[_CullMode]
+
+            ZWrite On
+
+            HLSLPROGRAM
+
+            #define SHADERPASS SHADERPASS_DEPTH_ONLY
+            #include "../../ShaderVariables.hlsl"
+            #include "../../Material/Material.hlsl"
+            #include "ShaderPass/UnlitDepthPass.hlsl"
+            #include "UnlitData.hlsl"
+            #include "../../ShaderPass/ShaderPassDepthOnly.hlsl"
+
+            ENDHLSL
+        }
+
+        // Unlit opaque material need to be render with ForwardOnlyOpaqueDepthOnly. Unlike Lit that can be both deferred and forward,
+        // unlit require to be forward only, that's why we need this pass.
+        // Also in case of forward rendering, unlit will use regular DepthOnly pass.
+        // (Code is exactly the same as "Forward", it simply allow our system to filter objects correctly)
+        Pass
+        {
+            Name "ForwardOnlyOpaqueDepthOnly"
+            Tags{ "LightMode" = "ForwardOnlyOpaqueDepthOnly" }
+
+            Cull[_CullMode]
+
+            ZWrite On
+
+            HLSLPROGRAM
+
+            #define SHADERPASS SHADERPASS_DEPTH_ONLY
+            #include "../../ShaderVariables.hlsl"
+            #include "../../Material/Material.hlsl"
+            #include "ShaderPass/UnlitDepthPass.hlsl"
+            #include "UnlitData.hlsl"
+            #include "../../ShaderPass/ShaderPassDepthOnly.hlsl"
+
+            ENDHLSL
+        }
+
+        Pass
+        {
             Name "ForwardUnlit"
             Tags { "LightMode" = "Forward" }
 
 
         // Unlit opaque material need to be render with ForwardOnlyOpaque. Unlike Lit that can be both deferred and forward,
         // unlit require to be forward only, that's why we need this pass. Unlit transparent will use regular Forward pass
+        // Also in case of forward rendering, unlit will use regular forward pass too
         // (Code is exactly the same as "Forward", it simply allow our system to filter objects correctly)
         Pass
         {

ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/UnlitData.hlsl

 // Fill SurfaceData/Builtin data function
 //-------------------------------------------------------------------------------------
 
+void DoAlphaTest(float alpha, float alphaCutoff)
+{
+    // For Forward (Full forward or ForwardOnlyOpaque in deferred):
+    // Opaque geometry always has a depth pre-pass so we never want to do the clip here. For transparent we perform the clip as usual.
+#if (SHADER_PASS == SHADERPASS_FORWARD_UNLIT && defined(SURFACE_TYPE_TRANSPARENT))
+    clip(alpha - alphaCutoff);
+#endif
+}
+
 void GetSurfaceAndBuiltinData(FragInputs input, float3 V, inout PositionInputs posInput, out SurfaceData surfaceData, out BuiltinData builtinData)
 {
     surfaceData.color = SAMPLE_TEXTURE2D(_ColorMap, sampler_ColorMap, input.texCoord0).rgb * _Color.rgb;
-    clip(alpha - _AlphaCutoff);
+    DoAlphaTest(alpha, _AlphaCutoff);
 #endif
 
     // Builtin Data

ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/ShaderPass/UnlitDepthPass.hlsl

+#ifndef SHADERPASS
+#error Undefine_SHADERPASS
+#endif
+
+#ifdef _ALPHATEST_ON
+#define ATTRIBUTES_NEED_TEXCOORD0
+
+#define VARYINGS_NEED_TEXCOORD0
+#endif
+
+// This include will define the various Attributes/Varyings structure
+#include "../../ShaderPass/VaryingMesh.hlsl"

ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/ShaderPass/UnlitDepthPass.hlsl.meta

+fileFormatVersion: 2
+guid: f211364c93a5e8d49b005301800e84f7
+timeCreated: 1507844863
+licenseType: Pro
+ShaderImporter:
+  externalObjects: {}
+  defaultTextures: []
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: