MaterialExpressionBumpOffset.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 "Materials/MaterialExpression.h"
#include "MaterialExpressionBumpOffset.generated.h"
 
UCLASS(collapsecategories, hidecategories=Object, MinimalAPI)
class UMaterialExpressionBumpOffset : public UMaterialExpression
{
    GENERATED_UCLASS_BODY()
 
    // Outputs: Coordinate + Eye.xy * (Height - ReferencePlane) * HeightRatio
    UPROPERTY(meta = (RequiredInput = "false", ToolTip = "Defaults to 'ConstCoordinate' if not specified"))
    FExpressionInput Coordinate;
 
    UPROPERTY()
    FExpressionInput Height;
 
    UPROPERTY(meta=(RequiredInput = "false"))
    FExpressionInput HeightRatioInput;
 
    UPROPERTY(EditAnywhere, Category=MaterialExpressionBumpOffset, meta=(OverridingInputProperty = "HeightRatioInput"))
    float HeightRatio = 0.05f; // Perceived height as a fraction of width.
 
    UPROPERTY(EditAnywhere, Category=MaterialExpressionBumpOffset)
    float ReferencePlane = 0.5f;    // Height at which no offset is applied.
 
    UPROPERTY(EditAnywhere, Category = MaterialExpressionBumpOffset, meta = (OverridingInputProperty = "Coordinate"))
    uint32 ConstCoordinate = 0;
 
    //~ 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;
#endif
    //~ End UMaterialExpression Interface
};