OnMouseDown vs Physics.Raycast

Unity Engine
1

To detect a mousedown over a Collider I can use the OnMouseDown function or I can create some code using the Physics.Raycast function.
I wonder which method is preferable?

2

I would like to know the answer too

3

This is the little piece of code that I wrote to do that:

if (Input.GetMouseButton(0))
{
    Vector3 pointAtCamera = Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, 0.0f));
    Vector3 forward = Vector3.zero;
            
    if (!Camera.main.orthographic)
    {
         Vector3 pointTarget = Camera.main.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, 100.0f));
         forward = pointTarget - pointAtCamera;
         forward.Normalize();
    }
    else
         forward = Camera.main.transform.forward;
            
    RaycastHit hit;
    if (Physics.Raycast(pointAtCamera - (forward * 100), forward, out hit, Mathf.Infinity, FLOOR_LAYER))
    {
        // Move the position of the selected object
        pickPosMarker.transform.position = new Vector3(hit.point.x, 1.0f, hit.point.z);

#if DEBUG
        // DEBUG
        pickPos = new Vector3(hit.point.x, hit.point.y, hit.point.z);
        Debug.DrawLine(pointAtCamera - (forward * 100), pointAtCamera + (forward * 100));
                
#endif
    }
}
4

Hi Diego,

Appreciate your effort, but basicly what I would like to know is if there’s a performance difference between to two methods.