ue4 相机切换 - 爱码网

1 新建一个c++类名为 CameraDirector
ue4 相机切换
2 拖两个相机到编辑器

3 在camera Director 下选择两个相机

4 CameraDirector.h

// Fill out your copyright notice in the Description page of Project Settings.

#pragma once

#include "CoreMinimal.h"
#include "GameFramework/Actor.h"
#include "CameraDirector.generated.h"

UCLASS()
class HOWTO_AUTOCAMERA_API ACameraDirector : public AActor
{
	GENERATED_BODY()
	
public:	
	// Sets default values for this actor's properties
	ACameraDirector();

protected:
	// Called when the game starts or when spawned
	virtual void BeginPlay() override;

public:	
	// Called every frame
	virtual void Tick(float DeltaTime) override;

	UPROPERTY(EditAnywhere)
		AActor* CameraOne;

	UPROPERTY(EditAnywhere)
		AActor* CameraTwo;

	float TimeToNextCameraChange;
};

CameraDirector.cpp

// Fill out your copyright notice in the Description page of Project Settings.

#include "CameraDirector.h"
#include "Kismet/GameplayStatics.h"

// Sets default values
ACameraDirector::ACameraDirector()
{
 	// Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;

}

// Called when the game starts or when spawned
void ACameraDirector::BeginPlay()
{
	Super::BeginPlay();
	
}

// Called every frame
void ACameraDirector::Tick(float DeltaTime)
{
	Super::Tick(DeltaTime);

	const float TimeBetweenCameraChanges = 2.0f;
	const float SmoothBlendTime = 0.75f;
	TimeToNextCameraChange -= DeltaTime;
	if (TimeToNextCameraChange <= 0.0f)
	{
		TimeToNextCameraChange += TimeBetweenCameraChanges;

		//搜寻处理本地玩家控制的actor。
		APlayerController* OurPlayerController = UGameplayStatics::GetPlayerController(this, 0);
		if (OurPlayerController)
		{
			//Get the actor the controller is looking at
			if ((OurPlayerController->GetViewTarget() != CameraOne) && (CameraOne != nullptr))
			{
				// 立即切换到相机1。Set the view target
				OurPlayerController->SetViewTarget(CameraOne);

				//OurPlayerController->SetViewTargetWithBlend(CameraOne, SmoothBlendTime);

			}
			else if ((OurPlayerController->GetViewTarget() != CameraTwo) && (CameraTwo != nullptr))
			{
				// 平滑地混合到相机2。
				OurPlayerController->SetViewTargetWithBlend(CameraTwo, SmoothBlendTime);
			}
		}
	}
}
5 编译运行就可以看待相机间隔切换