Fixed URP RG wireframe overlay rendering

This PR aims to fix Shaded-Wireframe rendering mode in URP when using RenderGraph, by introducing a "WireOverlay" `RasterRenderPass` that re-renders the scene for scene-view cameras if the mode is enabled. Since RenderGraph is now enabled by default, this was impacting the majority of our URP users using the latest betas.

Jira: https://jira.unity3d.com/browse/UUM-67686

Author: amsXYZ

Packages/com.unity.render-pipelines.universal/Runtime/ScriptableRenderer.cs

@@ -39,6 +39,7 @@ private static partial class Profiling
             public static readonly ProfilingSampler internalStartRendering = new ProfilingSampler($"{k_Name}.{nameof(InternalStartRendering)}");
             public static readonly ProfilingSampler internalFinishRenderingCommon = new ProfilingSampler($"{k_Name}.{nameof(InternalFinishRenderingCommon)}");
             public static readonly ProfilingSampler drawGizmos = new ProfilingSampler($"{nameof(DrawGizmos)}");
+            public static readonly ProfilingSampler drawWireOverlay = new ProfilingSampler($"{nameof(DrawWireOverlay)}");
             internal static readonly ProfilingSampler beginXRRendering = new ProfilingSampler($"Begin XR Rendering");
             internal static readonly ProfilingSampler endXRRendering = new ProfilingSampler($"End XR Rendering");
             internal static readonly ProfilingSampler initRenderGraphFrame = new ProfilingSampler($"Initialize Render Graph frame settings");
@@ -992,6 +993,39 @@ internal void DrawRenderGraphGizmos(RenderGraph renderGraph, ContextContainer fr
 #endif
         }
 
+        private class DrawWireOverlayPassData
+        {
+            public RendererListHandle wireOverlayList;
+        };
+
+        internal void DrawRenderGraphWireOverlay(RenderGraph renderGraph, ContextContainer frameData, TextureHandle color)
+        {
+#if UNITY_EDITOR
+            UniversalCameraData cameraData = frameData.Get<UniversalCameraData>();
+
+            if (!cameraData.isSceneViewCamera)
+                return;
+
+            using (var builder = renderGraph.AddRasterRenderPass<DrawWireOverlayPassData>("Wire Overlay", out var passData,
+                       Profiling.drawWireOverlay))
+            {
+                builder.SetRenderAttachment(color, 0, AccessFlags.Write);
+
+                passData.wireOverlayList = renderGraph.CreateWireOverlayRendererList(cameraData.camera);
+                builder.UseRendererList(passData.wireOverlayList);
+                builder.AllowPassCulling(false);
+
+                builder.SetRenderFunc(static (DrawWireOverlayPassData data, RasterGraphContext rgContext) =>
+                {
+                    using (new ProfilingScope(rgContext.cmd, Profiling.drawWireOverlay))
+                    {
+                        rgContext.cmd.DrawRendererList(data.wireOverlayList);
+                    }
+                });
+            }
+#endif
+        }
+
         private class BeginXRPassData
         {
             internal UniversalCameraData cameraData;

Packages/com.unity.render-pipelines.universal/Runtime/UniversalRendererRenderGraph.cs

@@ -1441,6 +1441,9 @@ private void OnAfterRendering(RenderGraph renderGraph)
                 m_FinalDepthCopyPass.Render(renderGraph, frameData, resourceData.activeDepthTexture, cameraDepthTexture, false, "Final Depth Copy");
             }
 #endif
+            if (cameraData.isSceneViewCamera)
+                DrawRenderGraphWireOverlay(renderGraph, frameData, resourceData.backBufferColor);
+
             if (drawGizmos)
                 DrawRenderGraphGizmos(renderGraph, frameData, resourceData.backBufferColor, resourceData.activeDepthTexture, GizmoSubset.PostImageEffects);
         }