MaterialExpressionSparseVolumeTextureSample.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Materials/MaterialExpression.h"
#include "UObject/ObjectMacros.h"
#include "Materials/MaterialParameters.h"
#include "Materials/MaterialExpressionSparseVolumeTextureBase.h"
 
#include "MaterialExpressionSparseVolumeTextureSample.generated.h"
 
class USparseVolumeTexture;
struct FMaterialParameterMetadata;
 
UCLASS(collapsecategories, hidecategories=Object, MinimalAPI)
class UMaterialExpressionSparseVolumeTextureSample : public UMaterialExpressionSparseVolumeTextureBase
{
    GENERATED_UCLASS_BODY()
 
    
    UPROPERTY(meta = (RequiredInput = "false"))
    FExpressionInput Coordinates;
 
    UPROPERTY(meta = (RequiredInput = "false", ToolTip = "Defaults to 'SparseVolumeTexture' if not specified"))
    FExpressionInput TextureObject;
 
    UPROPERTY(meta = (RequiredInput = "false", ToolTip = "Defaults to 0 if not specified"))
    FExpressionInput MipValue;
 
    UPROPERTY(meta = (RequiredInput = "true", ToolTip = "Coordinates derivative over the X axis"))
    FExpressionInput CoordinatesDX;
 
    UPROPERTY(meta = (RequiredInput = "true", ToolTip = "Coordinates derivative over the Y axis"))
    FExpressionInput CoordinatesDY;
 
    UPROPERTY(EditAnywhere, Category = MaterialExpressionTextureSample, meta = (DisplayName = "MipValueMode", ShowAsInputPin = "Advanced"))
    TEnumAsByte<ETextureMipValueMode> MipValueMode;
 
    UPROPERTY(EditAnywhere, Category = MaterialExpressionTextureSample, Meta = (ShowAsInputPin = "Advanced"))
    TEnumAsByte<ESamplerSourceMode> SamplerSource;
 
    UPROPERTY(EditAnywhere, Category = MaterialExpressionTextureSample)
    int32 ConstMipValue;
 
protected:
 
#if WITH_EDITOR
    ENGINE_API virtual bool CanEditChange(const FProperty* InProperty) const override;
    ENGINE_API virtual void PostLoad() override;
    ENGINE_API virtual TArrayView<FExpressionInput*> GetInputsView() override;
    ENGINE_API virtual FExpressionInput* GetInput(int32 InputIndex) override;
    ENGINE_API virtual FName GetInputName(int32 InputIndex) const override;
    ENGINE_API virtual int32 Compile(class FMaterialCompiler* Compiler, int32 OutputIndex) override;
    ENGINE_API virtual void GetCaption(TArray<FString>& OutCaptions) const override;
    ENGINE_API virtual EMaterialValueType GetOutputValueType(int32 OutputIndex) override;
    ENGINE_API virtual EMaterialValueType GetInputValueType(int32 InputIndex) override;
public:
    ENGINE_API virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
#endif
    //~ End UMaterialExpression Interface
};
 
 
UCLASS(collapsecategories, hidecategories = Object, MinimalAPI)
class UMaterialExpressionSparseVolumeTextureSampleParameter : public UMaterialExpressionSparseVolumeTextureSample
{
    GENERATED_UCLASS_BODY()
 
    
    UPROPERTY(EditAnywhere, Category = MaterialParameter)
    FName ParameterName;
 
    UPROPERTY()
    FGuid ExpressionGUID;
 
    UPROPERTY(EditAnywhere, Category = MaterialParameter)
    FName Group;
 
    UPROPERTY(EditAnywhere, Category = MaterialParameter)
    int32 SortPriority = 32;
 
#if WITH_EDITOR
    bool SetParameterValue(FName InParameterName, USparseVolumeTexture* InValue, EMaterialExpressionSetParameterValueFlags Flags = EMaterialExpressionSetParameterValueFlags::None);
#endif
 
    //~ Begin UMaterialExpression Interface
#if WITH_EDITOR
    virtual bool CanRenameNode() const override { return true; }
    virtual void SetEditableName(const FString& NewName) override { ParameterName = *NewName; }
    virtual FString GetEditableName() const override { return ParameterName.ToString(); }
    virtual bool HasAParameterName() const override { return true; }
    virtual void SetParameterName(const FName& Name) override { ParameterName = Name; }
    virtual FName GetParameterName() const override { return ParameterName; }
    virtual void ValidateParameterName(const bool bAllowDuplicateName) override;
    virtual void GetCaption(TArray<FString>& OutCaptions) const override;
    virtual bool MatchesSearchQuery(const TCHAR* SearchQuery) override;
    virtual bool GetParameterValue(FMaterialParameterMetadata& OutMeta) const override;
    virtual bool SetParameterValue(const FName& Name, const FMaterialParameterMetadata& Meta, EMaterialExpressionSetParameterValueFlags Flags) override;
#endif
    virtual FGuid& GetParameterExpressionId() override { return ExpressionGUID; }
    //~ End UMaterialExpression Interface
};