Added tooltips for features being disabled because of MSAA/Raytracing (#3879)

* Added tooltips to warn when some features may be disabled.

* Update change log

Author: JulienIgnace-Unity

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

@@ -158,6 +158,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Virtual Texturing Resolver now performs RTHandle resize logic in HDRP instead of in core Unity
 - Cached the base types of Volume Manager to improve memory and cpu usage.
 - Reduced the maximal number of bounces for both RTGI and RTR (case 1318876).
+- Added tooltips to warn when some features may be disabled depending on MSAA/raytracing usage.
 
 ## [11.0.0] - 2020-10-21
 

com.unity.render-pipelines.high-definition/Runtime/RenderPipeline/Settings/FrameSettings.cs

@@ -100,7 +100,7 @@ public enum FrameSettingsField
         [FrameSettingsField(0, displayedName: "Clear GBuffers", positiveDependencies: new[] { LitShaderMode }, customOrderInGroup: 2, tooltip: "When enabled, HDRP clear GBuffers for Cameras using these Frame Settings. Set Lit Shader Mode to Deferred to access this option.")]
         ClearGBuffers = 5,
         /// <summary>When enabled, Cameras using these Frame Settings calculate MSAA when they render the Scene. Set Lit Shader Mode to Forward to access this option.</summary>
-        [FrameSettingsField(0, displayedName: "MSAA within Forward", negativeDependencies: new[] { LitShaderMode }, customOrderInGroup: 3, tooltip: "When enabled, Cameras using these Frame Settings calculate MSAA when they render the Scene. Set Lit Shader Mode to Forward to access this option.")]
+        [FrameSettingsField(0, displayedName: "MSAA within Forward", negativeDependencies: new[] { LitShaderMode }, customOrderInGroup: 3, tooltip: "When enabled, Cameras using these Frame Settings calculate MSAA when they render the Scene. Set Lit Shader Mode to Forward to access this option. Note that MSAA is disabled when using ray tracing.")]
         MSAA = 31,
         /// <summary>When enabled, Cameras using these Frame Settings use Alpha To Mask. Activate MSAA to access this option.</summary>
         [FrameSettingsField(0, displayedName: "Alpha To Mask", negativeDependencies: new[] { LitShaderMode }, positiveDependencies: new[] { MSAA }, customOrderInGroup: 3, tooltip: "When enabled, Cameras using these Frame Settings use Alpha To Mask. Activate MSAA to access this option.")]
@@ -243,13 +243,13 @@ public enum FrameSettingsField
         [FrameSettingsField(1, autoName: ContactShadows, tooltip: "When enabled, Cameras using these Frame Settings render Contact Shadows")]
         ContactShadows = 21,
         /// <summary>When enabled, Cameras using these Frame Settings render Screen Space Shadows.</summary>
-        [FrameSettingsField(1, autoName: ScreenSpaceShadows, customOrderInGroup: 23, tooltip: "When enabled, Cameras using these Frame Settings render Screen Space Shadows (Depends on \"Screen Space Shadows\" in current HDRP Asset).")]
+        [FrameSettingsField(1, autoName: ScreenSpaceShadows, customOrderInGroup: 23, tooltip: "When enabled, Cameras using these Frame Settings render Screen Space Shadows (Depends on \"Screen Space Shadows\" in current HDRP Asset). Note that Screen Space Shadows are disabled when MSAA is enabled.")]
         ScreenSpaceShadows = 34,
         /// <summary>When enabled, Cameras using these Frame Settings render shadows from Shadow Masks.</summary>
         [FrameSettingsField(1, autoName: Shadowmask, customOrderInGroup: 24, tooltip: "When enabled, Cameras using these Frame Settings render shadows from Shadow Masks (Depends on \"Shadowmask\" in current HDRP Asset).")]
         Shadowmask = 22,
         /// <summary>When enabled, Cameras using these Frame Settings calculate Screen Space Reflections.</summary>
-        [FrameSettingsField(1, displayedName: "Screen Space Reflection", tooltip: "When enabled, Cameras using these Frame Settings calculate Screen Space Reflections (Depends on \"Screen Space Reflection\" in current HDRP Asset).")]
+        [FrameSettingsField(1, displayedName: "Screen Space Reflection", tooltip: "When enabled, Cameras using these Frame Settings calculate Screen Space Reflections (Depends on \"Screen Space Reflection\" in current HDRP Asset). Note that Screen Space Reflections are disabled when MSAA is enabled.")]
         SSR = 23,
         /// <summary>When enabled, Cameras using these Frame Settings calculate Screen Space Reflections on transparent objects.</summary>
         [FrameSettingsField(1, displayedName: "Transparents", customOrderInGroup: 25, positiveDependencies: new[] { SSR }, tooltip: "When enabled, Cameras using these Frame Settings calculate Screen Space Reflections on transparent objects.")]