SkyAtmosphereSceneProxy.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "EngineDefines.h"
#include "Rendering/SkyAtmosphereCommonData.h"
 
struct FSkyAtmosphereDynamicState;
class FSkyAtmosphereRenderSceneInfo;
class USkyAtmosphereComponent;
 
 
class FSkyAtmosphereSceneProxy
{
public:
 
    // Initialization constructor.
    ENGINE_API FSkyAtmosphereSceneProxy(const USkyAtmosphereComponent* InComponent);
    ENGINE_API FSkyAtmosphereSceneProxy(const FSkyAtmosphereDynamicState& Ds);
    ENGINE_API ~FSkyAtmosphereSceneProxy();
 
    FLinearColor GetSkyLuminanceFactor() const { return SkyLuminanceFactor; }
    FLinearColor GetSkyAndAerialPerspectiveLuminanceFactor() const { return SkyAndAerialPerspectiveLuminanceFactor; }
    float GetAerialPespectiveViewDistanceScale() const { return AerialPespectiveViewDistanceScale; }
    float GetHeightFogContribution() const { return HeightFogContribution; }
    float GetAerialPerspectiveStartDepthKm() const { return AerialPerspectiveStartDepthKm; }
    float GetTraceSampleCountScale() const { return TraceSampleCountScale; }
 
    const FAtmosphereSetup& GetAtmosphereSetup() const { return AtmosphereSetup; }
 
    bool IsHoldout() const { return bHoldout; }
    bool IsRenderedInMainPass() const { return bRenderInMainPass; }
 
    void UpdateTransform(const FTransform& ComponentTransform, uint8 TranformMode) { AtmosphereSetup.UpdateTransform(ComponentTransform, TranformMode); }
    void ApplyWorldOffset(const FVector3f& InOffset) { AtmosphereSetup.ApplyWorldOffset((FVector)InOffset); }
 
    ENGINE_API FVector GetAtmosphereLightDirection(int32 AtmosphereLightIndex, const FVector& DefaultDirection) const;
 
    bool bStaticLightingBuilt;
    FSkyAtmosphereRenderSceneInfo* RenderSceneInfo;
private:
 
    FAtmosphereSetup AtmosphereSetup;
 
    FLinearColor SkyLuminanceFactor;
    FLinearColor SkyAndAerialPerspectiveLuminanceFactor;
    float AerialPespectiveViewDistanceScale;
    float HeightFogContribution;
    float AerialPerspectiveStartDepthKm;
    float TraceSampleCountScale;
    bool bHoldout;
    bool bRenderInMainPass;
 
    bool OverrideAtmosphericLight[NUM_ATMOSPHERE_LIGHTS];
    FVector OverrideAtmosphericLightDirection[NUM_ATMOSPHERE_LIGHTS];
 
    friend class FSkyAtmosphereStateStreamImpl;
};