Add LightLayer in probes

com.unity.render-pipelines.high-definition/HDRP/Editor/Lighting/Reflection/HDProbeUI.Drawers.cs

 
         protected static void Drawer_SectionCustomSettings(HDProbeUI s, SerializedHDProbe d, Editor o)
         {
+            EditorGUILayout.PropertyField(d.lightLayer, lightLayerContent);
+
             EditorGUILayout.PropertyField(d.weight, weightContent);
 
             EditorGUI.BeginChangeCheck();

com.unity.render-pipelines.high-definition/HDRP/Editor/Lighting/Reflection/HDProbeUI.Skin.cs

 
         static readonly GUIContent weightContent = CoreEditorUtils.GetContent("Weight|Blend weight applied on this reflection probe. This can be used for fading in or out a reflection probe.");
         static readonly GUIContent multiplierContent = CoreEditorUtils.GetContent("Intensity Multiplier|Allows you to boost or dimmer the reflected cubemap. Values above 1 will make reflections brighter and values under 1 will make reflections darker. Using values different than 1 is not physically correct.");
+        static readonly GUIContent lightLayerContent = CoreEditorUtils.GetContent("Light Layer|Specifies the current light layers that the light affect. Corresponding renderer with the same flags will be lit by this light.");
 
         static readonly GUIContent textureSizeContent = CoreEditorUtils.GetContent("Probe Texture Size (Set By HDRP)");
         static readonly GUIContent compressionTextureContent = CoreEditorUtils.GetContent("Probe Compression (Set By HDRP)");

com.unity.render-pipelines.high-definition/HDRP/Editor/Lighting/Reflection/SerializedHDProbe.cs

 
         internal SerializedFrameSettings frameSettings;
 
+        internal SerializedProperty lightLayer;
+
         internal SerializedProperty mode;
         internal SerializedProperty refreshMode;
 
 
             frameSettings = new SerializedFrameSettings(serializedObject.Find((HDProbe p) => p.frameSettings));
 
+            lightLayer = serializedObject.Find((HDProbe p) => p.lightLayer);
+
             mode = serializedObject.Find((HDProbe p) => p.mode);
             refreshMode = serializedObject.Find((HDProbe p) => p.refreshMode);
         }

com.unity.render-pipelines.high-definition/HDRP/Lighting/Reflection/HDProbe.cs

         
         RenderTexture m_RealtimeTexture = null;
 
+        /// <summary>Light layer to use by this probe.</summary>
+        public LightLayerEnum lightLayer = LightLayerEnum.LightLayerDefault;
+
         /// <summary>ProxyVolume currently used by this probe.</summary>
         public ReflectionProxyVolumeComponent proxyVolume { get { return m_ProxyVolume; } }