Get the data of the first frame of unity's open camera

​using UnityEngine;

public class ExampleScript : MonoBehaviour
{
    WebCamTexture webcamTexture;
    Testure2D t2=new Testure2D;
    Testure2D t2_1=new Testure2D;
    Testure2D t2_2=new Testure2D;
    int a=0;

    void Start()
    {
        // Start web cam feed
        webcamTexture =  new WebCamTexture();
        webcamTexture.Play();
        t2=webcamTexture;// Take the camera picture directly , The approximate rate is Null;
    }
    
    void Update()
    {
        if (webcamTexture.didUpdateThisFrame)
        {
            a++;
            if(a>1)
                {
                    t2_2=webcamTexture;// The first frame will be black , The second frame is the frame with picture 
                }
        }
    }
    
    IEnumerator Waiting()
    {
        yeild return new wait...// Waiting time , How long? ？ How long does it take to turn on the camera （ Not sure ）？ I want to have the first frame of the picture ？
        t2_1=webcamTexture;
    }
}

Because I'm not sure how long it will take for the camera to turn on , It is not the best choice for us to process data too early or too late , that WebCamTexture .didUpdateThisFrame

Just enough to meet our needs ;

Use this attribute to check whether the video buffer has changed since the last frame . When setting low frame rate , Video updates may be slower than games . Because every time Update Call to execute high overhead video Processing is meaningless , Please check this value before any processing .

When the first frame buffer changes , The frame has not been written , So it's a black frame , When the buffer changes the second time, it will be a new frame , That is, the first frame of the picture we want .

If it helps , Focus on + Click like to support bloggers , Readers are cordially invited to point out what is wrong , thank you ！