Tooling

Source/SaltyEditor/Authoring/LandscapeAuthoringLibrary.h

@@ -40,4 +40,15 @@ public:
 	static ALandscape* CreateLandscapeFromHeightmap(UWorld* World, const FString& HeightmapFile,
 		const TArray<FLandscapeAuthoringWeightmap>& Weightmaps, UMaterialInterface* Material,
 		FVector Location, FVector Scale, int32 WorldPartitionGridSize = 4);
+
+	// Creates a ULandscapeLayerInfoObject asset carrying LayerName, which is the name the landscape material
+	// blends by and the name a weightmap is imported against.
+	//
+	// The second thing the engine exposes no Python path to, and for the same reason as the first. There is no
+	// LayerInfo factory in the bindings, and ULandscapeLayerInfoObject::LayerName is VisibleAnywhere - so the
+	// obvious workaround, duplicating an existing layer info, produces an asset that silently keeps the name it
+	// was copied from and paints that substance wherever the new layer should be. Returns null and logs why on
+	// failure; an existing asset at the path is returned rather than replaced, so this is safe to rerun.
+	UFUNCTION(BlueprintCallable, Category = "Salty|Authoring")
+	static ULandscapeLayerInfoObject* CreateLayerInfo(const FString& PackagePath, const FString& AssetName, FName LayerName);
 };