Question by ndmrzk · Feb 17, 2020 at 09:14 AM · camera webcamtexture

How to get webcamtexture to fit into potrait size when camera on and when capturing screenshot?

Hi. I want my app to be able to use the front camera to take a photo and i sort of got the first part by using webcamtexture like so :

 WebCamTexture cameraTexture;
 
 public void StartCamera()
 {
     StartCoroutine(OpenCamera());
 }
 
 IEnumerator OpenCamera()
 {
     WebCamDevice[] devices = WebCamTexture.devices;
 
     for (int i = 0; i < devices.Length; i++)
     {
         if (devices[i].isFrontFacing)
         {
             cameraTexture = new WebCamTexture(devices[i].name, Screen.width, Screen.height);
         }
     }
 
     cameraTexture.Play();
 
     Debug.Log(cameraTexture.isPlaying);
 
     yield return new WaitForEndOfFrame();
 
     float ratio = (float)cameraTexture.width / (float)cameraTexture.height;
     fit.aspectRatio = ratio;
         
     PhotoPreview.GetComponentInChildren<RawImage>().texture = cameraTexture;
    
     PhotoPreview.SetActive(true);
 
 }

I've set the aspect ratio fitter in inspector as envelope parent and in editor the camera feed is a rectangle bigger than game view. So i manually changed the uv rect in script like :

 PhotoPreview.GetComponentInChildren<RawImage>().uvRect = new Rect(0.4f, 0f, 1f, 1f);

then to take a screenshot like this :

 cameraTexture.Stop();
 //Create new  Texture2D
 Texture2D texture = new Texture2D(Screen.width, Screen.height);
 //Read the pixels in the Rect starting at 0,0 and ending at the screen's width and height
 texture.ReadPixels(new Rect(0.4f, 0f, Screen.width, Screen.height), 0, 0, false);
 texture.Apply();
 
 PhotoPreview.GetComponentInChildren<RawImage>().uvRect = new Rect(0f, 0f, 3.5f, 1f);
 
 PhotoPreview.GetComponentInChildren<RawImage>().texture = texture;
 
 yield return new WaitForEndOfFrame();

Here i also set the uv rect manually so then in scene view it looks like rectangles next to each other.

However, in gameview eveyrthing looks nice and proper but if i were to save the screenshot the image saved is distorted. Also on my phone which is a samsung, the camera feed is rotated 90 degrees to the left.

So, am i doing things correctly to get the camera feed from front facing camera? and how do i go about fixing the rotated camera feed?

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