[Error] AR Foundation - Issue while reading

I am trying to add images dynamically in reference to the Image Library of ARfoundation Unity. I have a method to access gallery images from the iPhone.
Code Snippet: http://bit.ly/38JYDOa

So, I want to add this image to add to the reference image library and make this image an AR target image. For that, I wrote the below code.

Code Snippet: http://bit.ly/32c9YEe

But when I run my app in iPhone I get below error:

System.InvalidOperationException: The texture must be readable to be used as the source for a reference image in UnityEngine.XR.ARFoundation.MutableRuntime.

Is there any possible way to convert texture image readable for ARFoundation dynamically from gallery images of a phone.

Thank you for your time and help.

Regards,
Paramjot Singh

 

I'm running into this very same issue. Were you able to figure this out?

 

I have the same issue? Can someone help to solve it.

 

Is there any update on this? Running into the same thing.

 

Hey guys, eventually I got around the issue. I didn't convert the texture dynamically, but I did find some things that might be useful. I used this code to find out which textures were even supported in the first place and add the image.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.XR.ARSubsystems;
5. using UnityEngine.XR.ARFoundation;
6. public class AddImageToTrackedImageLibrary : MonoBehaviour
7. {
8.  
9.     public ARTrackedImageManager m_ARTrackedImageManager = null;
10.  
11.     public Texture2D imageToAdd = null;
12.  
13.     IEnumerator Start()
14.     {
15.         yield return new WaitForSeconds(5f);
16.         Debug.Log("About to add image");
17.         AddImage(imageToAdd);
18.     }
19.  
20.     private void AddImage(Texture2D texture) {
21.  
22.         if (m_ARTrackedImageManager.referenceLibrary is MutableRuntimeReferenceImageLibrary mutableLibrary)
23.         {
24.             // List all supported texture formats
25.             for (int i = 0; i < mutableLibrary.supportedTextureFormatCount;i++) {
26.                 Debug.Log("Texture Format Supported: " + mutableLibrary.GetSupportedTextureFormatAt(i));
27.             }
28.            
29.             var addImageJob = mutableLibrary.ScheduleAddImageJob(texture, texture.name, 0.05f);
30.             Debug.Log("Added: " + texture.name + " to the reference library.");
31.         }
32.         else {
33.             Debug.Log("Failed");
34.         }
35.     }
36. }

And I made sure to set the import settings for the image I was trying to add to use a format that was supported. I chose RGBA 32 bit.

 

In the Texture you have to tick the box Read/Write enabled

 

This worked for me thank you