What's the purpose of vector bitwise OR operation?

Development Programming & Scripting
1

In Shooting Game (Unreal Learning Project)
i found create line trace start location function.

	// use player's camera
	FRotator UnusedRot;
	PC->GetPlayerViewPoint(OutStartTrace, UnusedRot);

             // Adjust trace so there is nothing blocking the ray between the camera and the pawn, and calculate distance from adjusted start
	OutStartTrace = OutStartTrace + AimDir * ((GetInstigator()->GetActorLocation() - OutStartTrace) | AimDir);
  • GetInstigator() is Owner of this camera. (Player)
  • AimDir is GetPlayerViewPoint(vector,rotator) , AimDir = rotator.Vector() <<<<

in last line. what is ’ | ’ operation purpose?..
please let me know :x

2

Oh wow! thank you so much.
if you want please post the answer. i’ll choose your answer :slight_smile:

3

Hello! It is just Dot product.