MaterialExpressionStaticSwitch.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "MaterialExpressionIO.h"
#include "MaterialValueType.h"
#include "Materials/MaterialExpression.h"
#include "MaterialExpressionStaticSwitch.generated.h"
 
UCLASS(collapsecategories, hidecategories=Object, MinimalAPI)
class UMaterialExpressionStaticSwitch : public UMaterialExpression
{
    GENERATED_BODY()
 
public:
 
    UPROPERTY(EditAnywhere, Category=MaterialExpressionStaticSwitch, meta=(OverridingInputProperty = "Value"))
    uint32 DefaultValue:1;
 
    UPROPERTY()
    FExpressionInput A;
 
    UPROPERTY()
    FExpressionInput B;
 
    UPROPERTY(meta = (RequiredInput = "false", ToolTip = "Ignored if not specified"))
    FExpressionInput Value;
 
 
    //~ Begin UMaterialExpression Interface
#if WITH_EDITOR
    virtual void Build(MIR::FEmitter& Emitter) override;
    virtual int32 Compile(class FMaterialCompiler* Compiler, int32 OutputIndex) override;
    virtual void GetCaption(TArray<FString>& OutCaptions) const override;
    virtual FName GetInputName(int32 InputIndex) const override;
    virtual bool IsResultMaterialAttributes(int32 OutputIndex) override;
    virtual EMaterialValueType GetInputValueType(int32 InputIndex) override;
    virtual bool IsStaticExpression() const override { return true; }
 
    virtual bool IsResultSubstrateMaterial(int32 OutputIndex) override;
    virtual void GatherSubstrateMaterialInfo(FSubstrateMaterialInfo& SubstrateMaterialInfo, int32 OutputIndex) override;
    virtual FSubstrateOperator* SubstrateGenerateMaterialTopologyTree(class FMaterialCompiler* Compiler, class UMaterialExpression* Parent, int32 OutputIndex) override;
#endif // WITH_EDITOR
    //~ End UMaterialExpression Interface
 
#if WITH_EDITOR
protected:
    FExpressionInput* GetEffectiveInput(class FMaterialCompiler* Compiler);
#endif
};