[Unreal 4] C++을 이용한 오브젝트 생성 정리
언리얼 C++를 이용한 오브젝트 생성
생성자에서 오브젝트 생성
CreateDefaultSubobject를 사용하면 된다.
USphereComponent* SphereComponent = CreateDefaultSubobject<USphereComponent>(TEXT("Root"));
※ 생성자 외부에서 이 함수를 사용하면 컴파일 에러가 발생한다.
생성자 외부에서 오브젝트 생성
NewObject로 생성하면 된다. 컴포넌트인 경우 RegisterComponent를 호출해 등록해줘야 한다.
USphereComponent* SphereComponent = NewObject<USphereComponent>(this, TEXT("Root"));
SphereComponent->RegisterComponent();
※ 컴포넌트에 설정은 RegisterComponent 전에 해야 하며 RegisterComponent 이후 설정하려고 하면 에러가 발생한다.
참고문헌
NewObject or CreateDefaultSubobject - Unreal Engine / Programming & Scripting - Unreal Engine Forums
NewObject or CreateDefaultSubobject
Hi all, I’d like to know what is the difference between the 2 methods stated in the title. Example: USphereComponent* Component = NewObject<USphereComponent>(this); or USphereComponent* SphereComponent = CreateDefaultSubobject<USphereComponent>(TEXT("Roo
forums.unrealengine.com
c++ - Unreal Engine 4. Different ways to instantiate the object - Stack Overflow
Unreal Engine 4. Different ways to instantiate the object
I found about four different ways to instantiate the object, but not sure if my understanding is clear. NewObject<T>() function used when we want to make at the instance of UObject. For exam...
stackoverflow.com
Component created with NewObject is invisible - Programming & Scripting / C++ - Unreal Engine Forums
Component created with NewObject is invisible
I was creating a sub-object inside my actor’s constructor the usual way: AMyActor::AMyActor(const FObjectInitializer &init) : Super(init) { text_render = CreateDefaultSubobject<UTextRenderComponent>(TEXT("info_text")); } Worked fine. Then I needed to mov
forums.unrealengine.com
When should I call RegisterComponent() and ReregisterComponent()? Should I ever?
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