Rainer LeitandClaude Fable 5.1
1945ef033b
Off the ladder at the user's request. Scripts/Authoring/generate_heightmap.py (numpy, installed locally by bootstrap-pylib.sh) writes a 16-bit height PNG and three 8-bit weight PNGs to Content/World/Heightmaps; create_world.py rebuilds /Game/Maps/L_World from them through ULandscapeAuthoringLibrary in the new SaltyEditor module, which wraps ALandscape::Import because the engine exposes no landscape creation to Python. Uses Elite_RockyMeadows' landscape material and layer infos (the pack itself is still uncommitted). 4033 vertices a side at 350 cm a quad; swap the PNGs and rerun to change the terrain. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
44 lines
1.9 KiB
C++
44 lines
1.9 KiB
C++
#pragma once
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#include "CoreMinimal.h"
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#include "Kismet/BlueprintFunctionLibrary.h"
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#include "LandscapeAuthoringLibrary.generated.h"
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class ALandscape;
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class ULandscapeLayerInfoObject;
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class UMaterialInterface;
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// One paint layer to import with the heightmap: the layer info asset the material expects and an 8-bit
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// greyscale file (PNG or raw) with the same resolution as the heightmap.
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USTRUCT(BlueprintType)
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struct FLandscapeAuthoringWeightmap
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{
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GENERATED_BODY()
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Landscape")
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TObjectPtr<ULandscapeLayerInfoObject> LayerInfo = nullptr;
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UPROPERTY(EditAnywhere, BlueprintReadWrite, Category = "Landscape")
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FString File;
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};
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// What the editor's "New Landscape > Import" button does, callable from an authoring script. The engine exposes
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// no landscape creation to Python, so this is the project's first editor tool. Mirrors
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// FLandscapeEditorDetailCustomization_NewLandscape::OnCreateButtonClicked without the regions path.
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UCLASS()
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class SALTYEDITOR_API ULandscapeAuthoringLibrary : public UBlueprintFunctionLibrary
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{
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GENERATED_BODY()
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public:
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// Creates a landscape in World from a 16-bit heightmap file, centred on Location, with the given per-quad
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// scale (cm; Z is the engine's height scale where 100 spans -256 m to +256 m). The component layout is chosen
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// from the file's resolution; a file that does not fit a layout exactly is expanded, not resampled. In a
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// world-partitioned level the landscape is split into streaming proxies of GridSize x GridSize components.
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// Returns null and logs why on failure.
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UFUNCTION(BlueprintCallable, Category = "Salty|Authoring")
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static ALandscape* CreateLandscapeFromHeightmap(UWorld* World, const FString& HeightmapFile,
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const TArray<FLandscapeAuthoringWeightmap>& Weightmaps, UMaterialInterface* Material,
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FVector Location, FVector Scale, int32 WorldPartitionGridSize = 4);
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};
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