get mouse position unity

Vector3 worldPosition = Camera.main.ScreenToWorldPoint(Input.mousePosition);

Vector2 mousePosition = new Vector2(Input.mousePosition.x, Input.mousePosition.y);

Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);

RaycastHit hit = new RaycastHit();

if (Physics.Raycast(ray, out hit))
{
	return hit.point;
}