Ray Tracing

 Unreal

void APlayerChar::Tick(float DeltaTime)

{

Super::Tick(DeltaTime);


FHitResult* Outhit;

float traceLimit = 100;

                if(GetWorld()->LineTraceSingleByChannel(Outhit, GetComponentLocation(), GetForwardVector() * traceLimit, ECC_Visiblity)) { UE_LOG(LogTemp, Display, TEXT("%s"), *hitOut->GetName()); 

                   DrawDebugLine(GetWorld(),  GetComponentLocation(), GetForwardVector() * traceLimit, FColor::Red, false, 1, 0, 5);//#include "DrawDebugHelpers.h"

                }

}

Unity

void Update() {

        RaycastHit hit;

        float rayLimit = 100;

        if (Physics.Raycast(transform.position, transform.TransformDirection(Vector3.forward), out hit, rayLimit))  { Debug.Log(hit.collider.gameObject.name);

            Debug.DrawRay(transform.position, transform.TransformDirection(Vector3.forward) * hit.distance, Color.red); 

        }

}

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