MaterialExpressionLandscapeLayerWeight.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "Misc/Guid.h"
#include "MaterialExpressionIO.h"
#include "MaterialValueType.h"
#include "Materials/MaterialExpression.h"
#include "MaterialExpressionLandscapeLayerWeight.generated.h"
 
class UTexture;
struct FMaterialParameterInfo;
 
UCLASS(collapsecategories, hidecategories=Object, MinimalAPI)
class UMaterialExpressionLandscapeLayerWeight : public UMaterialExpression
{
    GENERATED_UCLASS_BODY()
 
    UPROPERTY(meta = (RequiredInput = "false", ToolTip = "Defaults to 'ConstBase' if not specified"))
    FExpressionInput Base;
 
    UPROPERTY(meta = (RequiredInput = "false", ToolTip = "Ignored if not specified"))
    FExpressionInput Layer;
 
    UPROPERTY(EditAnywhere, Category=MaterialExpressionLandscapeLayerWeight)
    FName ParameterName;
 
    UPROPERTY(EditAnywhere, Category=MaterialExpressionLandscapeLayerWeight)
    float PreviewWeight;
 
    UPROPERTY(EditAnywhere, Category = MaterialExpressionLandscapeLayerWeight, meta = (OverridingInputProperty = "Base"))
    FVector ConstBase;
 
public:
 
    //~ Begin UMaterialExpression Interface
#if WITH_EDITOR
    LANDSCAPE_API virtual bool IsResultMaterialAttributes(int32 OutputIndex) override;
    LANDSCAPE_API virtual int32 Compile(class FMaterialCompiler* Compiler, int32 OutputIndex) override;
    virtual bool CanRenameNode() const override { return true; }
    LANDSCAPE_API virtual FString GetEditableName() const override;
    LANDSCAPE_API virtual void SetEditableName(const FString& NewName) override;
    LANDSCAPE_API virtual void GetCaption(TArray<FString>& OutCaptions) const override;
    LANDSCAPE_API virtual bool MatchesSearchQuery(const TCHAR* SearchQuery) override;
#endif
    LANDSCAPE_API virtual UObject* GetReferencedTexture() const override;
    LANDSCAPE_API virtual ReferencedTextureArray GetReferencedTextures() const override;
    virtual bool CanReferenceTexture() const override { return true; }
#if WITH_EDITOR
    virtual EMaterialValueType GetInputValueType(int32 InputIndex) override {return static_cast<EMaterialValueType>(MCT_Float | MCT_MaterialAttributes);}
 
    LANDSCAPE_API virtual void GetLandscapeLayerNames(TArray<FName>& OutLayers) const override;
#endif //WITH_EDITOR
    //~ End UMaterialExpression Interface
 
    //~ Begin UObject Interface
    LANDSCAPE_API virtual void PostLoad() override;
    //~ End UObject Interface
};