unity获取obs虚拟摄像头_error - could not find specified video device

1、obs安装虚拟摄像头

https://obsproject.com/forum/resources/obs-virtualcam.539/

2、查看电脑有几种摄像头

下面代码打印出摄像头名称

            WebCamDevice[] devices = WebCamTexture.devices;
          
            for (var i = 0; i < devices.Length; i++) {
                 Debug.Log(devices[i].name);
            }
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可以看出是devices[1]的摄像头是obs的虚拟摄像头。总代码如下。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class SheXiang : MonoBehaviour
{
    void Start()
    {
        WebCamDevice[] devices = WebCamTexture.devices;

        for (int i = 0; i < devices.Length; i++)
        {
            print(devices[i].name);
        }

        Renderer rend = this.GetComponentInChildren<Renderer>();

        WebCamTexture Texture = new WebCamTexture(devices[1].name);
        rend.material.mainTexture = Texture;
        Texture.Play();
    }

}

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3、错误解决： Could not find specified video device UnityEngine.WebCamTexture:Play()

上面过程大概率会出错，原因是Windows 注册表中需要注册一个“虚拟”相机。如何注册。连接如下
https://github.com/CatxFish/obs-virtual-cam/releases/tag/1.2.1

下载reg_path.reg文件，直接运行文件即可。再次测试，unity便可以获取到obs的虚拟摄像头。