Cannot switch camera on PC and unity editor

[huihut]

On the PC, I have several camera devices, and each camera's WebCamDevice.isFrontFacing is true, so I can't switch the camera in the WebCamTextureCVVTuberExample scene. (Switching the camera is still initialized with the first camera. this and this)

1. "FaceRig Virtual Camera"
2. "DroidCam Source 3"
3. "c922 Pro Stream Webcam" (I want to use it)
4. "Logi Capture"

So, is it possible to provide an interface in WebCamTextureToMatHelper that allows me to switch to the next camera on the PC instead of using webCamTextureToMatHelper.requestedDeviceName = "c922 Pro Stream Webcam";

WebCamTextureMatSourceGetter.cs

public virtual void ChangeCamera()
{

#if UNITY_EDITOR || UNITY_STANDALONE
            // webCamTextureToMatHelper.NextCamera();  // Your interface
#elif UNITY_ANDROID
            if (!webCamTextureToMatHelper.IsFrontFacing ()) {
                rearCameraRequestedFPS = webCamTextureToMatHelper.requestedFPS;
                webCamTextureToMatHelper.Initialize (!webCamTextureToMatHelper.IsFrontFacing (), rearCameraRequestedFPS, webCamTextureToMatHelper.rotate90Degree);
            } else {                
                webCamTextureToMatHelper.Initialize (!webCamTextureToMatHelper.IsFrontFacing (), 15, webCamTextureToMatHelper.rotate90Degree);
            }
#else
            webCamTextureToMatHelper.requestedIsFrontFacing = !webCamTextureToMatHelper.IsFrontFacing ();
#endif
}

[EnoxSoftware]

You should replace the current code with this.

        public virtual void ChangeCamera ()
        {
            #if UNITY_EDITOR || UNITY_STANDALONE
            string deviceName = webCamTextureToMatHelper.GetDeviceName ();
            int nextCameraIndex = -1;
            for (int cameraIndex = 0; cameraIndex < WebCamTexture.devices.Length; cameraIndex++) {
                if (WebCamTexture.devices [cameraIndex].name == deviceName) {
                    nextCameraIndex = ++cameraIndex % WebCamTexture.devices.Length;
                    break;
                }
            }
            if (nextCameraIndex != -1) {
                webCamTextureToMatHelper.requestedDeviceName = nextCameraIndex.ToString ();
            } else {
                webCamTextureToMatHelper.requestedIsFrontFacing = !webCamTextureToMatHelper.IsFrontFacing ();
            }
            #elif UNITY_ANDROID
            if (!webCamTextureToMatHelper.IsFrontFacing ()) {
                rearCameraRequestedFPS = webCamTextureToMatHelper.requestedFPS;
                webCamTextureToMatHelper.Initialize (!webCamTextureToMatHelper.IsFrontFacing (), rearCameraRequestedFPS, webCamTextureToMatHelper.rotate90Degree);
            } else {                
                webCamTextureToMatHelper.Initialize (!webCamTextureToMatHelper.IsFrontFacing (), 15, webCamTextureToMatHelper.rotate90Degree);
            }
            #else
            webCamTextureToMatHelper.requestedIsFrontFacing = !webCamTextureToMatHelper.IsFrontFacing ();
            #endif
        }

[huihut]

Thanks, but you should change if (nextCameraIndex == -1) to if (nextCameraIndex != -1).

Then it can switch every camera on the PC.

Thank you so much.

[huihut]

also, should this and this be exchanged?

[EnoxSoftware]

I wrote this code for the following reasons, but it is not always necessary.

[huihut]

I mean, rearCameraRequestedFPS is assigned but not used when using Android's rear camera.

WebCamTextureMatSourceGetter.cs#L124

            if (!webCamTextureToMatHelper.IsFrontFacing ()) {
                rearCameraRequestedFPS = webCamTextureToMatHelper.requestedFPS;
                webCamTextureToMatHelper.Initialize (!webCamTextureToMatHelper.IsFrontFacing (), 15, webCamTextureToMatHelper.rotate90Degree);
            } else {                
                webCamTextureToMatHelper.Initialize (!webCamTextureToMatHelper.IsFrontFacing (), rearCameraRequestedFPS, webCamTextureToMatHelper.rotate90Degree);
            }

Should it be as follows?

            if (!webCamTextureToMatHelper.IsFrontFacing ()) {
                rearCameraRequestedFPS = webCamTextureToMatHelper.requestedFPS;
                // rear camera uses requested fps
                webCamTextureToMatHelper.Initialize (!webCamTextureToMatHelper.IsFrontFacing (), rearCameraRequestedFPS, webCamTextureToMatHelper.rotate90Degree);
            } else {         
                // front camera uses 15fps
                webCamTextureToMatHelper.Initialize (!webCamTextureToMatHelper.IsFrontFacing (), 15, webCamTextureToMatHelper.rotate90Degree);
            }

[EnoxSoftware]

I'm sorry for the confusion. This code has this meaning.

            if (!webCamTextureToMatHelper.IsFrontFacing ()) { 
                // When the rear camera is active.
                // stores current fps.
                rearCameraRequestedFPS = webCamTextureToMatHelper.requestedFPS;
                // switch the rear camera to the front (uses 15 fps).
                webCamTextureToMatHelper.Initialize (!webCamTextureToMatHelper.IsFrontFacing (), 15, webCamTextureToMatHelper.rotate90Degree);
            } else {        
                // When the front camera is active.
                // switch the front camera to the rear (uses stored rearCameraRequestedFPS).        
                webCamTextureToMatHelper.Initialize (!webCamTextureToMatHelper.IsFrontFacing (), rearCameraRequestedFPS, webCamTextureToMatHelper.rotate90Degree);
            }

[huihut]

oh, I understand, sorry to misunderstand you.