Unity 摄像机实现镜面显示效果

using UnityEngine;
[RequireComponent(typeof(Camera))]
[ExecuteInEditMode]
public class MirrorCamera : MonoBehaviour
{
    new Camera camera;
    public bool Horizontal;
    void Awake()
    {
        camera = GetComponent<Camera>();
    }
    void OnPreCull()
    {
        camera.ResetWorldToCameraMatrix();
        camera.ResetProjectionMatrix();
        Vector3 scale = new Vector3(Horizontal ? -1 : 1, 1, 1);
        camera.projectionMatrix = camera.projectionMatrix * Matrix4x4.Scale(scale);
    }
    void OnPreRender()
    {
        GL.invertCulling = Horizontal;
    }

    void OnPostRender()
    {
        GL.invertCulling = false;
    }
}

将代码挂在到需要实现镜面显示效果的摄像机物体上，并将Horizontal选为True即可。