Merging //UE4/Dev-Main@6134169 to Dev-Rendering (//UE4/Dev-Rendering)

#rnx
#rb none

[CL 6139854 by Rolando Caloca in Dev-Rendering branch]

Engine/Source/Developer/TargetPlatform/Private/TargetPlatformBase.cpp

@@ -28,6 +28,11 @@ bool FTargetPlatformBase::UsesSelectiveBasePassOutputs() const
 	return CVar ? (CVar->GetInt() != 0) : false;
 }
 
+bool FTargetPlatformBase::UsesDistanceFields() const
+{
+	return true;
+}
+
 TSharedPtr<IDeviceManagerCustomPlatformWidgetCreator> FTargetPlatformBase::GetCustomWidgetCreator() const
 {
 	static TSharedPtr<FDeviceBrowserDefaultPlatformWidgetCreator> DefaultWidgetCreator = MakeShared<FDeviceBrowserDefaultPlatformWidgetCreator>();

Engine/Source/Developer/TargetPlatform/Public/Common/TargetPlatformBase.h

@@ -38,6 +38,8 @@ public:
 	TARGETPLATFORM_API virtual bool UsesBasePassVelocity() const override;
 
 	TARGETPLATFORM_API virtual bool UsesSelectiveBasePassOutputs() const override;
+	
+	TARGETPLATFORM_API virtual bool UsesDistanceFields() const override;
 
 #if WITH_ENGINE
 	virtual void GetReflectionCaptureFormats( TArray<FName>& OutFormats ) const override

Engine/Source/Developer/TargetPlatform/Public/Interfaces/ITargetPlatform.h

@@ -353,6 +353,11 @@ public:
 	*/
 	virtual bool UsesSelectiveBasePassOutputs() const = 0; 
 
+	/**
+	* Gets whether the platform will use distance fields.
+	*/
+	virtual bool UsesDistanceFields() const = 0;
+
 #if WITH_ENGINE
 	/**
 	 * Gets the format to use for a particular body setup.