From bfec3711c66cf9dcfb4d1dd2b67b610741f27cbd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Elvar=20O=CC=88rn=20Unn=C3=BEo=CC=81rsson?=
 <ellioman@ellioman.com>
Date: Mon, 8 Nov 2021 13:33:52 +0100
Subject: [PATCH] Fixing issue 1374215

---
 com.unity.render-pipelines.universal/CHANGELOG.md                | 1 +
 .../Shaders/Utils/ScreenSpaceAmbientOcclusion.shader             | 1 +
 2 files changed, 2 insertions(+)

diff --git a/com.unity.render-pipelines.universal/CHANGELOG.md b/com.unity.render-pipelines.universal/CHANGELOG.md
index a626525faeb..997102999c3 100644
--- a/com.unity.render-pipelines.universal/CHANGELOG.md
+++ b/com.unity.render-pipelines.universal/CHANGELOG.md
@@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fix for rendering thumbnails. [case 1348209](https://issuetracker.unity3d.com/issues/preview-of-assets-do-not-show-in-the-project-window)
 - Fixed a regression bug where XR camera postion can not be modified in beginCameraRendering [case 1365000]
 - Fixed an issue in where installing the Adaptive Performance package caused errors to the inspector UI [1368161](https://issuetracker.unity3d.com/issues/urp-package-throws-compilation-error-cs1525-when-imported-together-with-adaptive-performance-package)
+- Fixed an issue where SSAO would throw a "RenderingCommandBuffer: invalid pass index" errors. [case 1374215](https://issuetracker.unity3d.com/issues/urp-renderingcommandbuffer-invalid-pass-index-errors-when-opening-urp-sample-scenes)
 
 ## [13.1.0] - 2021-09-24
 ### Added
diff --git a/com.unity.render-pipelines.universal/Shaders/Utils/ScreenSpaceAmbientOcclusion.shader b/com.unity.render-pipelines.universal/Shaders/Utils/ScreenSpaceAmbientOcclusion.shader
index 2f17042f357..c658bd7c744 100644
--- a/com.unity.render-pipelines.universal/Shaders/Utils/ScreenSpaceAmbientOcclusion.shader
+++ b/com.unity.render-pipelines.universal/Shaders/Utils/ScreenSpaceAmbientOcclusion.shader
@@ -1,6 +1,7 @@
 Shader "Hidden/Universal Render Pipeline/ScreenSpaceAmbientOcclusion"
 {
     HLSLINCLUDE
+        #pragma editor_sync_compilation
         #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
         #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/EntityLighting.hlsl"
         #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/ImageBasedLighting.hlsl"