LocalLightComponent.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "UObject/ObjectMacros.h"
#include "Engine/EngineTypes.h"
#include "Components/LightComponent.h"
#include "LocalLightComponent.generated.h"
 
class FLightSceneProxy;
 
UCLASS(abstract, ClassGroup=(Lights,Common), hidecategories=(Object, LightShafts), editinlinenew, meta=(BlueprintSpawnableComponent), MinimalAPI)
class ULocalLightComponent : public ULightComponent
{
    GENERATED_UCLASS_BODY()
 
    
    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category=Light, meta=(DisplayName="Intensity Units", EditCondition="!bUseIESBrightness"))
    ELightUnits IntensityUnits;
 
    UPROPERTY(EditAnywhere, BlueprintReadOnly, Category=Light, AdvancedDisplay, meta = (UIMin = "0.0", UIMax = "1.0"))
    float InverseExposureBlend;
 
    UPROPERTY()
    float Radius_DEPRECATED;
 
    UPROPERTY(interp, BlueprintReadOnly, Category=Light, meta=(UIMin = "8.0", UIMax = "16384.0", SliderExponent = "5.0", ShouldShowInViewport = true))
    float AttenuationRadius;
 
    UPROPERTY(EditAnywhere, Category=Light, meta=(ShowOnlyInnerProperties))
    struct FLightmassPointLightSettings LightmassSettings;
 
    UFUNCTION(BlueprintCallable, Category="Rendering|Lighting")
    ENGINE_API void SetAttenuationRadius(float NewRadius);
 
    UFUNCTION(BlueprintCallable, Category="Rendering|Components|Light")
    ENGINE_API void SetIntensityUnits(ELightUnits NewIntensityUnits);
 
    UFUNCTION(BlueprintPure, Category="Rendering|Lighting")
    static ENGINE_API float GetUnitsConversionFactor(ELightUnits SrcUnits, ELightUnits TargetUnits, float CosHalfConeAngle = -1);
 
protected:
    //~ Begin UActorComponent Interface
    ENGINE_API virtual void SendRenderTransform_Concurrent() override;
    //~ End UActorComponent Interface
 
public:
    //~ Begin ULightComponent Interface.
    ENGINE_API virtual bool AffectsBounds(const FBoxSphereBounds& InBounds) const override;
    ENGINE_API virtual FVector4 GetLightPosition() const override;
    ENGINE_API virtual FBox GetBoundingBox() const override;
    ENGINE_API virtual FSphere GetBoundingSphere() const override;
    virtual FLightmassLightSettings GetLightmassSettings() const override
    {
        return LightmassSettings;
    }
    virtual ELightUnits GetLightUnits() const { return IntensityUnits; }
 
    //~ Begin UObject Interface
    ENGINE_API virtual void Serialize(FArchive& Ar) override;
#if WITH_EDITOR
    ENGINE_API virtual bool CanEditChange(const FProperty* InProperty) const override;
    ENGINE_API virtual void PostEditChangeProperty(FPropertyChangedEvent& PropertyChangedEvent) override;
#endif // WITH_EDITOR
    //~ End UObject Interface
 
private:
 
    ENGINE_API void PushRadiusToRenderThread();
};