CameraPostProcessComponent.h

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// Fill out your copyright notice in the Description page of Project Settings.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Camera/Effect/CameraBlurEffect.h"
#include "Components/ActorComponent.h"
#include "Engine/Scene.h"
#include "CameraPostProcessComponent.generated.h"
 
class AGameCameraManager;
class UMaterialInterface;
class UMaterialInstanceDynamic;
 
 
USTRUCT()
struct FBlueMaterial
{
    GENERATED_BODY()
 
public:
    UPROPERTY(EditDefaultsOnly)
    TObjectPtr<UMaterialInterface> BlurMaterial = nullptr;
 
    UPROPERTY(EditDefaultsOnly)
    FString StrengthParameterName = "BlurStrength";
};
 
 
UCLASS(ClassGroup=(Camera), meta=(BlueprintSpawnableComponent))
class CK_UE_API UCameraPostProcessComponent : public UActorComponent
{
    GENERATED_BODY()
 
public:
    UCameraPostProcessComponent();
 
public:
    void ApplyCachedPostProcessBlend(AGameCameraManager* CameraManager);
    void SetBlurPPSettings(const FPostProcessSettings& InSettings, float InWeight);
    void ClearBlurPPSettings();
    void ApplyBlurMaterial(ECameraBlurEffectType EffectType, float InStrength, float InBlendWeight);
    void ClearBlurMaterial(ECameraBlurEffectType EffectType);
    void ClearAllBlurMaterials();
 
private:
    void ApplyBlurMaterialInternal(const FBlueMaterial& BlurMaterial, TObjectPtr<UMaterialInstanceDynamic>& MaterialInstance, float InStrength, float InBlendWeight);
    void ClearBlurMaterialInstance(TObjectPtr<UMaterialInstanceDynamic>& MaterialInstance);
    void SetBlendableWeight(UObject* BlendableObject, float InWeight);
    void ClearBlendableWeight(UObject* BlendableObject);
 
private:
    UPROPERTY(EditDefaultsOnly, Category = "Camera|PostProcess", meta = (AllowPrivateAccess = "true"))
    TMap<ECameraBlurEffectType, FBlueMaterial> PostProcessMaterialMap;
 
private:
    UPROPERTY(Transient)
    TMap<ECameraBlurEffectType, TObjectPtr<UMaterialInstanceDynamic>> PostProcessingMaterialInstanceMap;
 
private:
    FPostProcessSettings BlurPPSettings;
    FPostProcessSettings BlendablePPSettings;
 
    float BlurPPWeight = 1.0f;
 
    bool bHasBlurPPSettings = false;
    bool bHasBlendablePPSettings = false;
};