[Fogbugz 1335732] Documentation and defaults for DLSS (#4694)

* [HDRP] Fix AxF debug output in certain configurations (#4641)

* Fix AxF debug output in certain configurations.

* Update comment

* Fix SSR accumulation white flash (#4648)

* Fix white flash

* changelog

Co-authored-by: sebastienlagarde <sebastien@unity3d.com>

* Display Info Box when MSAA + ray tracing is onr (#4627)

* Show info box when ray tracing is enabled.

* Changelog

* Move below MSAA

Co-authored-by: sebastienlagarde <sebastien@unity3d.com>

* Documentation and defaults for DLSS

* Feedback from Vic

* Update CHANGELOG.md

Co-authored-by: Pavlos Mavridis <pavlos.mavridis@unity3d.com>
Co-authored-by: FrancescoC-unity <43168857+FrancescoC-unity@users.noreply.github.com>
Co-authored-by: sebastienlagarde <sebastien@unity3d.com>

Author: 4 people

com.unity.render-pipelines.core/Runtime/Common/GlobalDynamicResolutionSettings.cs

@@ -59,7 +59,13 @@ public struct GlobalDynamicResolutionSettings
             // It fall-backs to software when not supported, so it makes sense to have it on by default.
             dynResType = DynamicResolutionType.Hardware,
             upsampleFilter = DynamicResUpscaleFilter.CatmullRom,
-            forcedPercentage = 100.0f
+            forcedPercentage = 100.0f,
+
+            //Defaults for dlss
+            enableDLSS = false,
+            DLSSUseOptimalSettings = true,
+            DLSSPerfQualitySetting = 0,
+            DLSSSharpness = 0.5f
         };
 
         /// <summary>Select whether the dynamic resolution is enabled or not.</summary>

com.unity.render-pipelines.high-definition/Documentation~/deep-learning-super-sampling-in-hdrp.md

@@ -44,8 +44,14 @@ After you install the NVIDIA package, more properties appear in [HDRP Assets](HD
 Your Unity project now supports DLSS and you can now enable DLSS for Cameras in your scene. Enabling DLSS in the HDRP Asset exposes other properties that you can use to customize DLSS. For information about these properties, see the [HDRP Asset](HDRP-Asset.md) documentation.
 
 1. In the Hierarchy or Scene view, select a Camera and view it in the Inspector.
-2. Select **Allow DLSS**.
-3. Enabling **Allow DLSS** exposes other properties that you can use to customize DLSS for the Camera. For information about these properties, see the [Camera](HDRP-Camera.md) documentation.
+2. Select **Allow Dynamic Resolution** to expose the DLSS settings. For more information see the [Dynamic Resolution](Dynamic-Resolution.md) guide.
+3. Select **Allow DLSS**.
+4. Enable **Allow DLSS** to expose other properties that you can use to customize DLSS for the Camera. For information about these properties, see the [Camera](HDRP-Camera.md) documentation.
+
+### DLSS and Dynamic Resolution
+
+The **Use Optimal Settings** checkbox in the [HDRP Assets](HDRP-Asset.md) is enabled by default. This means that DLSS sets the dynamic resolution scale automatically.
+If you disable this checkbox DLSS uses the same dynamic resolution scale set by the project. For more information see the [Dynamic Resolution](Dynamic-Resolution.md) guide.
 
 ### Setting the DLSS quality mode