关于unity的问题

Question

我在脚本中写了给人物头部添加红色射线的代码，但是红色射线可以在scene窗口中看到，game窗口中看不到红色射线，这是怎么回事呢？

代码如下：
//头顶射线
RaycastHit2D headCheck = Raycast(new Vector2(0f, coll.size.y), Vector2.up, headClearance, groundLayer);

RaycastHit2D Raycast(Vector2 offset, Vector2 rayDiraction, float length, LayerMask layer)
{
Vector2 pos = transform.position;

    RaycastHit2D hit = Physics2D.Raycast(pos + offset, rayDiraction, length, layer);

    Color color = hit? Color.red : Color.green;             

    Debug.DrawRay(pos + offset, rayDiraction * length,color);

    return hit;
}

Answer 1

上代码，你要是debug.drawline那的确只能在scene看到