Force a repaint of scene view when changing a value in the debug menu.

Assets/ScriptableRenderPipeline/common/Debugging/DebugItemDrawer.cs

         }
 
 #if UNITY_EDITOR
-        void DrawBoolItem()
+        bool DrawBoolItem()
         {
             bool value = (bool)m_MenuItem.GetValue();
             if (m_MenuItem.readOnly)
                 if (EditorGUI.EndChangeCheck())
                 {
                     m_MenuItem.SetValue(value);
+                    return true;
+
+            return false;
-        void DrawIntItem()
+        bool DrawIntItem()
         {
             int value = (int)m_MenuItem.GetValue();
             if (m_MenuItem.readOnly)
                 if (EditorGUI.EndChangeCheck())
                 {
                     m_MenuItem.SetValue(value);
+                    return true;
+
+            return false;
-        void DrawUIntItem()
+        bool DrawUIntItem()
         {
             int value = (int)(uint)m_MenuItem.GetValue();
             if (m_MenuItem.readOnly)
                 {
                     value = System.Math.Max(0, value);
                     m_MenuItem.SetValue((uint)value);
+                    return true;
+
+            return false;
-        void DrawFloatItem()
+        bool DrawFloatItem()
         {
             float value = (float)m_MenuItem.GetValue();
             if(m_MenuItem.readOnly)
                 if (EditorGUI.EndChangeCheck())
                 {
                     m_MenuItem.SetValue(value);
+                    return true;
+
+            return false;
-        void DrawColorItem()
+        bool DrawColorItem()
         {
             EditorGUI.BeginChangeCheck();
             Color value = EditorGUILayout.ColorField(m_Label, (Color)m_MenuItem.GetValue());
+                return true;
+
+            return false;
-        void DrawEnumItem()
+        bool DrawEnumItem()
         {
             EditorGUI.BeginChangeCheck();
             int value = EditorGUILayout.IntPopup(m_Label, (int)m_MenuItem.GetValue(), m_EnumStrings.ToArray(), m_EnumValues.ToArray());
+                return true;
+
+            return false;
-        public virtual void OnEditorGUI()
+        public virtual bool OnEditorGUI()
-                DrawBoolItem();
+                return DrawBoolItem();
-                DrawIntItem();
+                return DrawIntItem();
-                DrawUIntItem();
+                return DrawUIntItem();
-                DrawFloatItem();
+                return DrawFloatItem();
-                DrawColorItem();
+                return DrawColorItem();
-                DrawEnumItem();
+                return DrawEnumItem();
+
+            return false;
         }
 #endif
 }
         }
 
 #if UNITY_EDITOR
-        public override void OnEditorGUI()
+        public override bool OnEditorGUI()
         {
             EditorGUI.BeginChangeCheck();
             float value = EditorGUILayout.Slider(m_MenuItem.name, (float)m_MenuItem.GetValue(), m_Min, m_Max);
+                return true;
+
+            return false;
         }
 #endif
     }

Assets/ScriptableRenderPipeline/common/Debugging/Editor/DebugMenuEditor.cs

             using(new EditorGUILayout.VerticalScope())
             {
                 DebugMenu activeMenu = m_DebugMenu.GetDebugMenu(m_DebugMenu.activeMenuIndex);
+                bool needRepaint = false;
-                    activeMenu.GetDebugMenuItem(i).drawer.OnEditorGUI();
+                    needRepaint = needRepaint || activeMenu.GetDebugMenuItem(i).drawer.OnEditorGUI();
+
+                if (needRepaint)
+                    SceneView.RepaintAll();
             }
         }
     }