Best way to make a laser sight?

Unity Engine
,
1

What is the best way to make a laser targeting system that has the best performance? Also what do you think would be better, a Crosshair or a laser for targeting? Thanks.

2

LineRenderer.
Keep in mind that linerenderers do not batch (iirc).

3

Ok, I got the line renderer, but how do I script the start and end positions? I need it to start from the gun, and go to where the bullet will hit using a raycast or something. How would I go about doing that?

4

Hello

The raycast will give you the position where you hit (Vector3). The gun is your Origin (Vector3)

So just use it to render the line

5

Hello

The raycast will give you the position where you hit (Vector3). The gun is your Origin (Vector3)

So just use it to render the line

6

But how do I access the Line Renderer’s code to do that? It won’t let me edit Line Renderer’s code, so I can only set those variables in the inspector.

7

Can we see your code because it should let you.

Also try using a GetComponent call.

8

All I did was add the Line Renderer to my gameObject through the components menu.

9

Here would be the simplest code. You will have to set up the raycast on your own and cache the transform.

private var lineR : LineRenderer;
private var hit : RaycastHit;

var gun : Transform;


function Start () {
	
lineR = GetComponent(LineRenderer);

}

function Update () {
	lineR.SetPosition(0, gun.position);
	
	if(Physics.Raycast(transform.position, transform.forward, hit,Mathf.Infinity)) {
		
		lineR.SetPosition(1, hit.point);
		
	}
	
}
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