using Unity.WebRTC;
using UnityEngine;

public class WebcamToRenderTexture : MonoBehaviour
{
    public RenderTexture renderTexture;

    private WebCamTexture webcamTexture;

    void Awake()
    {
        if (renderTexture == null)
        {
            RenderTextureFormat supportedFormat = WebRTC.GetSupportedRenderTextureFormat(SystemInfo.graphicsDeviceType);

            // 创建新的RenderTexture
            renderTexture = new RenderTexture(1920, 1200, 0, supportedFormat);
            renderTexture.enableRandomWrite = true;
            renderTexture.Create();
            //_textureImage.texture = localRenderTexture; 
        }

        webcamTexture = new WebCamTexture();
        webcamTexture.Play();
    }

    void Update()
    {
        if (webcamTexture != null && webcamTexture.didUpdateThisFrame)
        {
            Graphics.Blit(webcamTexture, renderTexture);
        }
    }

    void OnDestroy()
    {
        if (webcamTexture != null)
        {
            webcamTexture.Stop();
        }

        if (renderTexture != null)
        {
            renderTexture.Release();
        }
    }
}