Fix Render Graph Viewer warnings on HDRP due to duplicate pass names

Fix https://jira.unity3d.com/browse/UUM-65820

When capturing data for Render Graph Viewer, we use the RG pass name as key in the dictionary that stores the script file name and line information required for "jump to pass source in IDE" feature. If duplicate pass names are found, a warning is printed to let user know that this mapping will be ambiguous.

In the case of this bug, the helper functions `BeginProfilingSampler` and `EndProfilingSampler` enqueue render passes with a fixed name, leading to multiple duplicate entries and therefore warnings. However, as these passes also call `builder.GenerateDebugData(false)`, they are not visible in RG Viewer in the first place and we can safely ignore them.

Note that the new code added is only ever active during the frame where RG Viewer is opened or the refresh button is clicked, so there is no performance impact.

Author: arttu-peltonen

Packages/com.unity.render-pipelines.core/Runtime/RenderGraph/RenderGraph.DebugData.cs

@@ -194,13 +194,19 @@ public class PassScriptInfo
             }
         }
 
+        readonly string[] k_PassNameDebugIgnoreList = new string[] { k_BeginProfilingSamplerPassName, k_EndProfilingSamplerPassName };
+
         [Conditional("UNITY_EDITOR")]
         void AddPassDebugMetadata(string passName, string file, int line)
         {
             // Does nothing unless debug data capture is requested
             if (m_CaptureDebugDataForExecution == null)
                 return;
 
+            for (int i = 0; i < k_PassNameDebugIgnoreList.Length; ++i)
+                if (passName == k_PassNameDebugIgnoreList[i])
+                    return;
+
             if (!DebugData.s_PassScriptMetadata.TryAdd(passName, new DebugData.PassScriptInfo { filePath = file, line = line }))
             {
                 var existingFile = DebugData.s_PassScriptMetadata[passName].filePath;

Packages/com.unity.render-pipelines.core/Runtime/RenderGraph/RenderGraph.cs

@@ -1247,6 +1247,9 @@ class ProfilingScopePassData
             public ProfilingSampler sampler;
         }
 
+        const string k_BeginProfilingSamplerPassName = "BeginProfile";
+        const string k_EndProfilingSamplerPassName = "EndProfile";
+
         /// <summary>
         /// Begin a profiling scope.
         /// </summary>
@@ -1260,7 +1263,7 @@ public void BeginProfilingSampler(ProfilingSampler sampler,
             if (sampler == null)
                 return;
 
-            using (var builder = AddRenderPass<ProfilingScopePassData>("BeginProfile", out var passData, (ProfilingSampler)null, file, line))
+            using (var builder = AddRenderPass<ProfilingScopePassData>(k_BeginProfilingSamplerPassName, out var passData, (ProfilingSampler)null, file, line))
             {
                 passData.sampler = sampler;
                 builder.AllowPassCulling(false);
@@ -1285,7 +1288,7 @@ public void EndProfilingSampler(ProfilingSampler sampler,
             if (sampler == null)
                 return;
 
-            using (var builder = AddRenderPass<ProfilingScopePassData>("EndProfile", out var passData, (ProfilingSampler)null, file, line))
+            using (var builder = AddRenderPass<ProfilingScopePassData>(k_EndProfilingSamplerPassName, out var passData, (ProfilingSampler)null, file, line))
             {
                 passData.sampler = sampler;
                 builder.AllowPassCulling(false);