Question The front facing camera used for Face Tracking seems zoomed in, any way to pull it back?

Hey folks,

We're doing some work with the texture returned back from MARS on mobile and we've noticed that the frame returned back is pretty narrow. Is there any way to adjust the Aspect Ratio of what MARS is capturing so that there's more width to the frame returned?

Let me know if you need further details.

Cheers,
azevedco

 

Hi CiaranWills,

Yes, we're using `IUsesCameraTexture` to grab the texture from MARS to work with. Although...taking another look at this script, it is coming back to me regarding some issues we faced with iOS.
When attempting to pull the texture from our class that extended from interface 'IUsesCameraTexture' on iOS, we never got a texture back, although it worked fine for Android. So we had to fallback to a new approach where we grab the material from ARCameraManager.cameraMaterial and found that gave us a texture to work with on both platforms.

We then perform a Graphics.Blit to extract the texture. Do you think this is a bad approach? If so, what are your thoughts are the issues we're experiencing while grabbing the texture on iOS with IUsesCameraTexture? I'll share our implementation with the interface below.

Code (CSharp):

1. public class MarsCamTexture : Singleton<MarsCamTexture>, IUsesCameraTexture
2. {
3.     IProvidesCameraTexture IFunctionalitySubscriber<IProvidesCameraTexture>.provider { get; set; }
4.  
5.     public ARCameraManager ARCameraManager { get { return arCamManager; } }
6.  
7.     [SerializeField] private ARCameraManager arCamManager = null;
8.  
9.     // Start is called before the first frame update
10.     void Start()
11.     {
12.         if (arCamManager == null)
13.         {
14.             arCamManager = MarsRuntimeUtils.GetActiveCamera(true).GetComponent<ARCameraManager>();
15.         }
16.     }
17.  
18.     /// <summary>
19.     /// Returns camera texture from MARS
20.     /// </summary>
21.     /// <returns></returns>
22.     public Texture GetCamTexture()
23.     {
24.         if (this.HasProvider())
25.         {
26.             return this.GetCameraTexture();
27.         }
28.  
29.         return null;
30.     }
31.  
32.     public Material GetArCamMaterial()
33.     {
34.         if(arCamManager != null)
35.         {
36.             return arCamManager.cameraMaterial;
37.         }
38.  
39.         return null;
40.     }
41. }

Cheers!