[HDRP] Fix error when increasing the maximum planar reflection limit

com.unity.render-pipelines.high-definition/CHANGELOG.md

@@ -34,9 +34,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed an issue where first frame of SSAO could exhibit ghosting artefacts.
 - Fixed an issue with the mipmap generation internal format after rendering format change.
 - Fixed performance issue with ShaderGraph and Alpha Test
-
-### Added
-- Added new AOV APIs for overriding the internal rendering format, and for outputing the world space position.
+- Fixed error when increasing the maximum planar reflection limit (case 1306530).
 
 ### Changed
 - Changed Window/Render Pipeline/HD Render Pipeline Wizard to Window/Rendering/HDRP Wizard
@@ -60,8 +58,6 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Change Assets/Create/Rendering/C# Custom Pass to Assets/Create/Rendering/HDRP C# Custom Pass
 - Change Assets/Create/Rendering/C# Post Process Volume to Assets/Create/Rendering/HDRP C# Post Process Volume
 - Change labels about scroll direction and cloud type.
-
-### Changed
 - Improved shadow cascade GUI drawing with pixel perfect, hover and focus functionalities.
 
 ## [11.0.0] - 2020-10-21

com.unity.render-pipelines.high-definition/Editor/RenderPipeline/HDRenderPipelineUI.Skin.cs

@@ -189,7 +189,7 @@ public class GeneralSection
             public static readonly GUIContent pointCoockieSizeContent = EditorGUIUtility.TrTextContent("Point Cookie Size", "Specifies the maximum size for the Cube cookies HDRP uses for Point Lights.");
 #endif
             public static readonly GUIContent pointCookieTextureArraySizeContent = EditorGUIUtility.TrTextContent("Cubemap Array Size", "Sets the maximum Texture Array size for the Cube cookies HDRP uses for Directional and Spot Lights. Higher values allow HDRP to use more cookies concurrently on screen.");
-            public static readonly GUIContent maxPlanarReflectionOnScreen = EditorGUIUtility.TrTextContent("Max Planar Reflection On Screen", "Sets the maximum number of the Planar Reflection HDRP can handle on screen at once.");
+            public static readonly GUIContent maxPlanarReflectionOnScreen = EditorGUIUtility.TrTextContent("Max Planar Reflection On Screen", "Sets the maximum number of the Planar Reflection HDRP can handle on screen at once. For performance reasons this number cannot be higher than 32.");
 
             public static readonly GUIContent cookieAtlasSizeContent = EditorGUIUtility.TrTextContent("2D Atlas Size", "Specifies the size of the atlas used for 2D cookies (Directional, Spot and Rectangle Lights).");
             public static readonly GUIContent cookieAtlasFormatContent = EditorGUIUtility.TrTextContent("Format", "Specifies the HDR format of the atlas used for 2D cookies. R16G16B16A16 can be use for EXR cookies (it provides more precision than R11G11B10)");

com.unity.render-pipelines.high-definition/Editor/RenderPipeline/HDRenderPipelineUI.cs

@@ -383,7 +383,10 @@ static void Drawer_SectionReflection(SerializedHDRenderPipelineAsset serialized,
                     string message = string.Format(Styles.cacheInfoFormat, HDEditorUtils.HumanizeWeight(currentCache));
                     EditorGUILayout.HelpBox(message, MessageType.Info);
                 }
+                EditorGUI.BeginChangeCheck();
                 EditorGUILayout.PropertyField(serialized.renderPipelineSettings.lightLoopSettings.maxPlanarReflectionOnScreen, Styles.maxPlanarReflectionOnScreen);
+                if (EditorGUI.EndChangeCheck())
+                    serialized.renderPipelineSettings.lightLoopSettings.maxPlanarReflectionOnScreen.intValue = Mathf.Clamp(serialized.renderPipelineSettings.lightLoopSettings.maxPlanarReflectionOnScreen.intValue, 1, ShaderVariablesGlobal.s_MaxEnv2DLight);
             }
 
             EditorGUILayout.Space();