Added "enable fog" parameter to layered shader.

ScriptableRenderPipeline/HDRenderPipeline/Material/LayeredLit/LayeredLit.shader

         [HideInInspector] _CullMode("__cullmode", Float) = 2.0
         [HideInInspector] _ZTestMode("_ZTestMode", Int) = 8
 
+        [ToggleOff] _EnableFog ("Enable Fog", Float) = 1.0
+
         [ToggleOff] _DoubleSidedEnable("Double sided enable", Float) = 0.0
         [Enum(None, 0, Mirror, 1, Flip, 2)] _DoubleSidedNormalMode("Double sided normal mode", Float) = 1
         [HideInInspector] _DoubleSidedConstants("_DoubleSidedConstants", Vector) = (1, 1, -1, 0)
     #pragma shader_feature _HEIGHT_BASED_BLEND
     #pragma shader_feature _ _LAYEREDLIT_3_LAYERS _LAYEREDLIT_4_LAYERS
 
-    #pragma shader_feature _ _BLENDMODE_LERP _BLENDMODE_ADD _BLENDMODE_SOFT_ADD _BLENDMODE_MULTIPLY _BLENDMODE_PRE_MULTIPLY
+    #pragma shader_feature _ _BLENDMODE_ALPHA _BLENDMODE_ADD _BLENDMODE_SOFT_ADD _BLENDMODE_MULTIPLY _BLENDMODE_PRE_MULTIPLY
+
+    // This feature is only for transparent Lit
+    #pragma shader_feature _ENABLE_FOG
 
     #pragma multi_compile LIGHTMAP_OFF LIGHTMAP_ON
     #pragma multi_compile DIRLIGHTMAP_OFF DIRLIGHTMAP_COMBINED

ScriptableRenderPipeline/HDRenderPipeline/Material/LayeredLit/LayeredLitTessellation.shader

         [HideInInspector] _CullMode("__cullmode", Float) = 2.0
         [HideInInspector] _ZTestMode("_ZTestMode", Int) = 8
 
+        [ToggleOff] _EnableFog ("Enable Fog", Float) = 1.0
+
         [ToggleOff] _DoubleSidedEnable("Double sided enable", Float) = 0.0
         [Enum(None, 0, Mirror, 1, Flip, 2)] _DoubleSidedNormalMode("Double sided normal mode", Float) = 1
         [HideInInspector] _DoubleSidedConstants("_DoubleSidedConstants", Vector) = (1, 1, -1, 0)
     #pragma shader_feature _ _LAYEREDLIT_3_LAYERS _LAYEREDLIT_4_LAYERS
 
     #pragma shader_feature _ _BLENDMODE_ALPHA _BLENDMODE_ADD _BLENDMODE_SOFT_ADD _BLENDMODE_MULTIPLY _BLENDMODE_PRE_MULTIPLY
+
+    // This feature is only for transparent Lit
+    #pragma shader_feature _ENABLE_FOG
 
     #pragma multi_compile LIGHTMAP_OFF LIGHTMAP_ON
     #pragma multi_compile DIRLIGHTMAP_OFF DIRLIGHTMAP_COMBINED

ScriptableRenderPipeline/HDRenderPipeline/Material/Unlit/Editor/BaseUnlitUI.cs

             {
                 BlendModePopup();
 
-                if(enableFog != null)
-                    m_MaterialEditor.ShaderProperty(enableFog, StylesBaseUnlit.enableFogText);
+                m_MaterialEditor.ShaderProperty(enableFog, StylesBaseUnlit.enableFogText);
-                    }
+            }
             m_MaterialEditor.ShaderProperty(alphaCutoffEnable, StylesBaseUnlit.alphaCutoffEnableText);
             if (alphaCutoffEnable.floatValue == 1.0f)
             {