Basic working prefab

Assets/_Project/Frame/FrameDataLoader.cs

@@ -0,0 +1,72 @@
+using UdonSharp;
+using UnityEngine;
+using UnityEngine.UI;
+using VRC.SDK3.Image;
+using VRC.SDK3.StringLoading;
+using VRC.SDKBase;
+using VRC.Udon;
+
+public class FrameDataLoader : UdonSharpBehaviour
+{
+    private VRCImageDownloader _imageDownloader;
+    public UdonBehaviour udonEventReceiver;
+    public VRCUrl[] rgbUrl;
+    public VRCUrl[] stringUrl;
+    public Renderer renderer;
+    public Text field;
+    public float photoDurationSeconds = 10f; 
+    private int _loadedIndex = -1;
+    
+    void Start()
+    {
+        _imageDownloader = new VRCImageDownloader();
+        LoadNextRecursive();
+    }
+
+    public void LoadNextRecursive()
+    {
+        LoadNext();
+        SendCustomEventDelayedSeconds(nameof(LoadNextRecursive), photoDurationSeconds);
+    }
+    
+    private void LoadNext()
+    {
+        // _loadedIndex++;
+        // if(_loadedIndex >= rgbUrl.Length)
+        // {
+        //     _loadedIndex = 0;
+        // }
+        _loadedIndex = (int)(Networking.GetServerTimeInMilliseconds() / 1000f / photoDurationSeconds) % rgbUrl.Length;
+        
+        var rgbInfo = new TextureInfo();
+        rgbInfo.WrapModeU = TextureWrapMode.Mirror;
+        rgbInfo.WrapModeV = TextureWrapMode.Mirror;
+        _imageDownloader.DownloadImage(rgbUrl[_loadedIndex], renderer.material, udonEventReceiver, rgbInfo);
+        VRCStringDownloader.LoadUrl(stringUrl[_loadedIndex], udonEventReceiver);
+    }
+
+    public override void OnStringLoadSuccess(IVRCStringDownload result)
+    {
+        field.text = result.Result;
+    }
+
+    public override void OnStringLoadError(IVRCStringDownload result)
+    {
+        Debug.LogError($"Could not load string {result.Error}");
+    }
+
+    public override void OnImageLoadSuccess(IVRCImageDownload result)
+    {
+        Debug.Log($"Image loaded: {result.SizeInMemoryBytes} bytes.");
+    }
+
+    public override void OnImageLoadError(IVRCImageDownload result)
+    {
+        Debug.Log($"Image not loaded: {result.Error.ToString()}: {result.ErrorMessage}.");
+    }
+
+    private void OnDestroy()
+    {
+        _imageDownloader.Dispose();
+    }
+}