MaterialExpressionViewProperty.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "Materials/MaterialExpression.h"
#include "MaterialExpressionViewProperty.generated.h"
 
UENUM()
enum EMaterialExposedViewProperty : int
{   
    MEVP_BufferSize UMETA(DisplayName="Render Target Size"),
    MEVP_FieldOfView UMETA(DisplayName="Field Of View"),
    MEVP_TanHalfFieldOfView UMETA(DisplayName="Tan(0.5 * Field Of View)"),
    MEVP_ViewSize UMETA(DisplayName="View Size"),
    MEVP_WorldSpaceViewPosition UMETA(DisplayName="View Position (Absolute World Space)"),
    MEVP_WorldSpaceCameraPosition UMETA(DisplayName = "Camera Position (Absolute World Space)"),
    MEVP_ViewportOffset UMETA(DisplayName = "Viewport Offset"),
    MEVP_TemporalSampleCount UMETA(DisplayName = "Temporal Sample Count"),
    MEVP_TemporalSampleIndex UMETA(DisplayName = "Temporal Sample Index"),
    MEVP_TemporalSampleOffset UMETA(DisplayName = "Temporal Sample Offset"),
    MEVP_RuntimeVirtualTextureOutputLevel UMETA(DisplayName = "Runtime Virtual Texture Output Level"),
    MEVP_RuntimeVirtualTextureOutputDerivative UMETA(DisplayName = "Runtime Virtual Texture Output Derivative"),
    MEVP_PreExposure UMETA(DisplayName = "Pre-Exposure"),
    MEVP_RuntimeVirtualTextureMaxLevel UMETA(DisplayName = "Runtime Virtual Texture Max Level"),
    MEVP_ResolutionFraction UMETA(DisplayName = "ScreenPercentage / 100"),
    MEVP_PostVolumeUserFlags UMETA(DisplayName = "Post Process Volume User Flags"),
    MEVP_FirstPersonFieldOfView UMETA(DisplayName = "First Person Field Of View"),
    MEVP_FirstPersonTanHalfFieldOfView UMETA(DisplayName = "Tan(0.5 * First Person Field Of View)"),
    MEVP_FirstPersonScale UMETA(DisplayName = "First Person Scale"),
    MEVP_NearPlane UMETA(DisplayName = "View Near Plane"),
 
    MEVP_MAX,
};
 
UCLASS(collapsecategories, hidecategories=Object, MinimalAPI)
class UMaterialExpressionViewProperty : public UMaterialExpression
{
    GENERATED_UCLASS_BODY()
    
    
    UPROPERTY(EditAnywhere, Category=UMaterialExpressionViewProperty, meta=(DisplayName = "View Property", ShowAsInputPin = "Advanced"))
    TEnumAsByte<EMaterialExposedViewProperty> Property = MEVP_FieldOfView;
    
    //~ 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
};