Distortion Blur from 1 to 0 according to the doc #6478

Author: skhiat

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

@@ -15,6 +15,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed error thrown when layered lit material has an invalid material type.
 - Fixed a warning because of a null texture in the lens flare pass.
 - Fixed a nullref when enabling raycount without ray tracing.
+- Fixed default value of "Distortion Blur" from 1 to 0 according to the doc.
 
 ## [13.1.3] - 2021-11-17
 

com.unity.render-pipelines.high-definition/Editor/Material/ShaderGraph/HDBlockFields.cs

@@ -32,7 +32,7 @@ public struct SurfaceDescription
             public static BlockFieldDescriptor Distortion = new BlockFieldDescriptor(SurfaceDescription.name, "Distortion", "SURFACEDESCRIPTION_DISTORTION",
                 new Vector2Control(Vector2.zero), ShaderStage.Fragment); // TODO: Lit is Vector2(2.0f, -1.0f)
             public static BlockFieldDescriptor DistortionBlur = new BlockFieldDescriptor(SurfaceDescription.name, "DistortionBlur", "Distortion Blur", "SURFACEDESCRIPTION_DISTORTIONBLUR",
-                new FloatControl(1.0f), ShaderStage.Fragment);
+                new FloatControl(0.0f), ShaderStage.Fragment);
             public static BlockFieldDescriptor ShadowTint = new BlockFieldDescriptor(SurfaceDescription.name, "ShadowTint", "Shadow Tint", "SURFACEDESCRIPTION_SHADOWTINT",
                 new ColorRGBAControl(Color.black), ShaderStage.Fragment);