MyWebcam.cs

MyWebcam.cs

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

public class MyWebcam : MonoBehaviour
{

    private bool _isBackCamera = false;
    public WebCamTexture _webcamTex;
    [SerializeField] private List<string> _camNames;
    [SerializeField] private int _testCamIndex=0;
    [SerializeField] private int _currentIndex=0;
    private GUIStyle _style;
    public void SetCamera( bool isBack ){


        _isBackCamera=isBack;
        if(_webcamTex){
            _webcamTex.Stop();
        }
        var idx = isBack ? 0 : 1;
        WebCamDevice[] devices = WebCamTexture.devices;

        _camNames=new List<string>();

        for(int i=0;i<devices.Length;i++){
            Debug.Log("device" + i + " > "+ devices[i].name);
            _camNames.Add(devices[i].name);
            //var res = devices[i].availableResolutions;
        }

        #if UNITY_EDITOR
            _webcamTex = new WebCamTexture(devices[_testCamIndex].name, 1280, 720, 30);
            _currentIndex=_testCamIndex;
        #else
            Debug.Log("Select " + idx + " " + devices[idx].name );
            _webcamTex = new WebCamTexture(devices[idx].name, 1280, 720, 30);
            _currentIndex=idx;
        #endif

        //Debug.Log( "SIZE " + _webcamTex.width + "x" + _webcamTex.height );
    
        _webcamTex.Play();

    }

    private void OnGUI(){
        
        if(_webcamTex){

            WebCamDevice[] devices = WebCamTexture.devices;

            if(_style==null){
                _style = new GUIStyle();
                _style.fontSize=35;
                _style.normal.textColor = Color.red;
            }

            var res = devices[_currentIndex].availableResolutions;

            if(res!=null){
                for(int i=0;i<res.Length;i++){
                    GUI.Label(
                        new Rect(100, Screen.height/2+50*i, 200, 50),
                        _currentIndex + "_" + res[i].width + "x" + res[i].height,
                        _style
                    );
                }
            }

            GUI.Label(
                new Rect(100, Screen.height/2-50, 500, 200),
                "webcam " + _webcamTex.width + "x" + _webcamTex.height,
                _style
            );

            GUI.DrawTexture(new Rect(100, 200, 400, 300), _webcamTex, ScaleMode.StretchToFill);
        }

    }


}