Fixed empty editor debug window on srp asset reload

ScriptableRenderPipeline/Core/CoreRP/Debugging/DebugManager.cs

 
     public sealed partial class DebugManager
     {
-#if UNITY_EDITOR
-        // HACK: Make debug windows work correctly with FrameSettings in Editor
-        public static bool renderPipelineIsRecreated = false;
-#endif
-
         static readonly DebugManager s_Instance = new DebugManager();
         public static DebugManager instance { get { return s_Instance; } }
 
 
         public event Action<bool> onDisplayRuntimeUIChanged = delegate { };
         public event Action onSetDirty = delegate { };
+
+        public bool refreshEditorRequested;
 
         GameObject m_Root;
         DebugUIHandlerCanvas m_RootUICanvas;
         {
             RegisterInputs();
             RegisterActions();
+        }
+
+        public void RefreshEditor()
+        {
+            refreshEditorRequested = true;
         }
 
         public void Reset()

ScriptableRenderPipeline/Core/CoreRP/Editor/Debugging/DebugWindow.cs

 
         void OnEnable()
         {
+            DebugManager.instance.refreshEditorRequested = false;
+
             hideFlags = HideFlags.HideAndDontSave;
             autoRepaintOnSceneChange = true;
 
             EditorApplication.update -= Repaint;
             var panels = DebugManager.instance.panels;
             var selectedPanelIndex = m_Settings.selectedPanel;
-            if (selectedPanelIndex >= 0 
-                && selectedPanelIndex < panels.Count 
+            if (selectedPanelIndex >= 0
+                && selectedPanelIndex < panels.Count
                 && panels[selectedPanelIndex].editorForceUpdate)
                 EditorApplication.update += Repaint;
         }
 
         void Update()
         {
-            // HACK: Make debug windows work correctly with FrameSettings in Editor
-            // When we manipulate the framesettings on HDRenderPipelineAsset, the debug windows is not
-            // refresh, it keep the old state of the runtime framesettings in memory and thus overwrite
-            // our freshly edited value. To ensure debug windows is aware of framesettings change we need to
-            // destroy its internal widget state.
-            if (DebugManager.renderPipelineIsRecreated)
+            // If the render pipeline asset has been reloaded we force-refresh widget states in case
+            // some debug values need to be refresh/recreated as well (e.g. frame settings on HD)
+            if (DebugManager.instance.refreshEditorRequested)
-                DebugManager.renderPipelineIsRecreated = false;
+                DebugManager.instance.refreshEditorRequested = false;
-            // END HACK
 
             int treeState = DebugManager.instance.GetState();
 

ScriptableRenderPipeline/HDRenderPipeline/CHANGELOG.md

 - Fix issue with shadow mask framesettings not correctly taken into account when shadow mask is enabled for lighting.
 - Fix directional light and shadow mask transition, they are now matching making smooth transition
 - Fix banding issues caused by high intensity volumetric lighting
+- Fix the debug window being emptied on SRP asset reload
 
 ## [2018.1.0f2]
 

ScriptableRenderPipeline/HDRenderPipeline/HDRP/HDRenderPipeline.cs

 
         public HDRenderPipeline(HDRenderPipelineAsset asset)
         {
-#if UNITY_EDITOR
-            // HACK: Make debug windows work correctly with FrameSettings in Editor
-            DebugManager.renderPipelineIsRecreated = true;
-#endif
+            DebugManager.instance.RefreshEditor();
 
             m_ValidAPI = true;