RayTracing
광선 추적(Ray Tracing)은 무엇인가? - (1) (tistory.com)
이를 조사하기 위해 역으로 카메라로부터 광선을 발사시킨다. (만약 광원으로부터 카메라까지 도달하는 빛을 조사한다면 비효율적일 것이다. 수많은 빛 중 카메라로 들어가는 빛만을 또 찾아내야 하기 때문에..)
About AActor!!! "UObject" has no member "BeginPlay"
AActor An AActor is an object that is meant to be part of the gameplay experience. AActors are either placed in a level by a designer or created at runtime via gameplay systems. All objects that can be placed into a level extend from this class. Examples include AStaticMeshActor, ACameraActor, and APointLight actors. AActor derives from UObject, so enjoys all of the standard features listed in the previous section. AActors can be explicitly destroyed via gameplay code (C++ or Blueprints) or via the standard garbage collection mechanism when the owning level is unloaded from memory. AActors are responsible for the high-level behaviors of your game’s objects. AActors are also the base type that can be replicated during networking. During network replication, AActors can also distribute information for any UActorComponents owned by that AActor that require network support. AActors have their own behaviors (specialization through inheritance), but they also act as containers for a hie...
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