HLODSetup.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "MeshMerge/MeshMergingSettings.h"
#include "MeshMerge/MeshProxySettings.h"
#include "MeshMerge/MeshApproximationSettings.h"
#include "HLODSetup.generated.h"
 
 
UENUM()
enum class EHierarchicalSimplificationMethod : uint8
{
    None = 0            UMETA(hidden),
    Merge = 1,
    Simplify = 2,
    Approximate = 3
};
 
 
USTRUCT()
struct FHierarchicalSimplification
{
    GENERATED_USTRUCT_BODY()
 
    
    UPROPERTY(Category = FHierarchicalSimplification, EditAnywhere, meta = (UIMin = "0.00001", ClampMin = "0.000001", UIMax = "1.0", ClampMax = "1.0"))
    float TransitionScreenSize;
 
    UPROPERTY(Category = FHierarchicalSimplification, EditAnywhere, AdvancedDisplay, meta = (UIMin = "1.0", ClampMin = "1.0", UIMax = "50000.0", editcondition="bUseOverrideDrawDistance"))
    float OverrideDrawDistance;
 
    UPROPERTY(Category = FHierarchicalSimplification, EditAnywhere, AdvancedDisplay, meta = (InlineEditConditionToggle))
    uint8 bUseOverrideDrawDistance:1;
 
    UPROPERTY(Category = FHierarchicalSimplification, EditAnywhere, AdvancedDisplay)
    uint8 bAllowSpecificExclusion : 1;
 
    UPROPERTY(EditAnywhere, Category = FHierarchicalSimplification, AdvancedDisplay, meta = (editcondition = "!bReusePreviousLevelClusters", DisplayAfter="MinNumberOfActorsToBuild"))
    uint8 bOnlyGenerateClustersForVolumes:1;
 
    UPROPERTY(EditAnywhere, Category = FHierarchicalSimplification, AdvancedDisplay, meta=(DisplayAfter="bOnlyGenerateClustersForVolumes"))
    uint8 bReusePreviousLevelClusters:1;
 
    UPROPERTY(Category = FHierarchicalSimplification, EditAnywhere)
    EHierarchicalSimplificationMethod SimplificationMethod;
 
    UPROPERTY(Category = FHierarchicalSimplification, EditAnywhere, AdvancedDisplay)
    FMeshProxySettings ProxySetting;
 
    UPROPERTY(Category = FHierarchicalSimplification, EditAnywhere, AdvancedDisplay)
    FMeshMergingSettings MergeSetting;
 
    UPROPERTY(Category = FHierarchicalSimplification, EditAnywhere, AdvancedDisplay)
    FMeshApproximationSettings ApproximateSettings;
 
    UPROPERTY(EditAnywhere, Category=FHierarchicalSimplification, AdvancedDisplay, meta=(UIMin=10.f, ClampMin=10.f, editcondition = "!bReusePreviousLevelClusters"))
    float DesiredBoundRadius;
 
    UPROPERTY(EditAnywhere, Category=FHierarchicalSimplification, AdvancedDisplay, meta=(ClampMin = "0", ClampMax = "100", UIMin = "0", UIMax = "100", editcondition = "!bReusePreviousLevelClusters"))
    float DesiredFillingPercentage;
 
    UPROPERTY(EditAnywhere, Category=FHierarchicalSimplification, AdvancedDisplay, meta=(ClampMin = "1", UIMin = "1", editcondition = "!bReusePreviousLevelClusters"))
    int32 MinNumberOfActorsToBuild;
 
#if WITH_EDITORONLY_DATA
    UPROPERTY(meta = (DeprecatedProperty))
    uint8 bSimplifyMesh_DEPRECATED:1;
#endif
 
    ENGINE_API FHierarchicalSimplification();
 
#if WITH_EDITORONLY_DATA
    ENGINE_API bool Serialize(FArchive& Ar);
 
    ENGINE_API void PostSerialize(const FArchive& Ar);
#endif
 
    ENGINE_API FMaterialProxySettings* GetSimplificationMethodMaterialSettings();
};
 
template<>
struct TStructOpsTypeTraits<FHierarchicalSimplification> : public TStructOpsTypeTraitsBase2<FHierarchicalSimplification>
{
#if WITH_EDITORONLY_DATA
    enum
    {
        WithSerializer = true,
        WithPostSerialize = true,
    };
#endif
};
 
UCLASS(Blueprintable, MinimalAPI)
class UHierarchicalLODSetup : public UObject
{
    GENERATED_BODY()
 
public:
    ENGINE_API UHierarchicalLODSetup();
 
    UPROPERTY(EditAnywhere, Category = HLODSystem)
    TArray<struct FHierarchicalSimplification> HierarchicalLODSetup;
 
    UPROPERTY(EditAnywhere, Category = HLODSystem)
    TSoftObjectPtr<UMaterialInterface> OverrideBaseMaterial;
 
#if WITH_EDITOR
    ENGINE_API virtual void PostEditChangeProperty(struct FPropertyChangedEvent& PropertyChangedEvent) override;
#endif // WITH_EDITOR
};