Editor UI + QualitySettings adjusting MSAA HDRP paths

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Camera/HDCamera.cs

             }
 
             if (frameSettings.enableMSAA)
-                tempDesc.msaaSamples = HDRenderPipeline.kMsaaSamplesFixed;
+            {
+                //tempDesc.msaaSamples = HDRenderPipeline.kMsaaSamplesFixed;
+                var sampleCount = QualitySettings.antiAliasing;
+                Debug.LogFormat("Quality Settings AA value: {0}", sampleCount);
+                if (sampleCount < 1)
+                {
+                    Debug.LogFormat("MSAA sample count clamped");
+                    sampleCount = 1;
+                }
+                tempDesc.msaaSamples = sampleCount;
+            }
             else
                 tempDesc.msaaSamples = 1;
 

ScriptableRenderPipeline/HDRenderPipeline/HDRP/HDRenderPipeline.cs

         // Detect when windows size is changing
         int m_CurrentWidth;
         int m_CurrentHeight;
+        int m_CurrentMSAASampleCount;
 
         // Use to detect frame changes
         int m_FrameCount;
             var desc = hdCamera.renderTextureDesc;
             var texWidth = desc.width;
             var texHeight = desc.height;
+            var sampleCount = desc.msaaSamples;
-            bool resolutionChanged = (texWidth != m_CurrentWidth) || (texHeight != m_CurrentHeight);
+            bool resolutionChanged = (texWidth != m_CurrentWidth) || 
+                                     (texHeight != m_CurrentHeight) || 
+                                     (sampleCount != m_CurrentMSAASampleCount);
 
             if (resolutionChanged || m_CameraDepthStencilBuffer == null)
             {
             // update recorded window resolution
             m_CurrentWidth = texWidth;
             m_CurrentHeight = texHeight;
+            m_CurrentMSAASampleCount = sampleCount;
         }
 
         public void PushGlobalParams(HDCamera hdCamera, CommandBuffer cmd, DiffusionProfileSettings sssParameters)

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Lighting/LightLoop/LightLoop.cs

                     kernelName += "_DepthRT";
 
                     // if MSAA is actually active, use the MSAA path
-                    if (m_FrameSettings.enableMSAA && 
-                        (HDRenderPipeline.kMsaaSamplesFixed > 1))
+                    //if (m_FrameSettings.enableMSAA && 
+                    //    (HDRenderPipeline.kMsaaSamplesFixed > 1))
+                    if (m_FrameSettings.enableMSAA)
                         kernelName += "_MSAA";
                 }
                 else