public LineRenderer linrend;
public float len;//线段长度
public float N;//发射力度
void Start()
{
}
// Update is called once per frame
void Update()
{
for (int i = 0; i < 20; i++) {
Vector3 v = transform.position + transform.forward * i * len*N+Physics.gravity*((i*len)*(i*len));
linrend.SetPosition(i, v);
}
}