Vive Streaming fix / workaround

Assets/Scenes/ModularInputScene.unity

@@ -38,7 +38,7 @@ RenderSettings:
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-  m_IndirectSpecularColor: {r: 0.009389741, g: 0.010874605, b: 0.014736945, a: 1}
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 --- !u!157 &3
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@@ -4672,7 +4672,42 @@ PrefabInstance:
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+        type: 3}
+      insertIndex: -1
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Assets/Scripts/VitrivrVR/Config/VitrivrVrConfig.cs

@@ -167,6 +167,12 @@ public enum SpeechToText
     /// Path to location where log files are to be written.
     /// </summary>
     public string logFileLocation;
+
+    /// <summary>
+    /// Enables a fix for the Vive streaming bug by periodically disabling and re-enabling UI interactions when no
+    /// interactions are detected.
+    /// </summary>
+    public bool viveStreamingFixEnabled;
 
     private VitrivrVrConfig()
     {
@@ -204,6 +210,7 @@ private VitrivrVrConfig()
       interactionLogSubmissionInterval = 10f;
       writeLogsToFile = false;
       logFileLocation = "session_logs/";
+      viveStreamingFixEnabled = false;
     }
 
     public static VitrivrVrConfig GetDefault()

Assets/Scripts/VitrivrVR/Util/ViveStreamingFix.cs

@@ -0,0 +1,36 @@
+using System;
+using UnityEngine;
+using UnityEngine.InputSystem.UI;
+using VitrivrVR.Config;
+
+namespace VitrivrVR.Util
+{
+  public class ViveStreamingFix : MonoBehaviour
+  {
+    public InputSystemUIInputModule uiInputModule;
+    private float _timer;
+
+    private void Awake()
+    {
+      if (ConfigManager.Config.viveStreamingFixEnabled) return;
+
+      Destroy(this);
+    }
+
+    private void FixedUpdate()
+    {
+      _timer += Time.fixedDeltaTime;
+      if (!(_timer >= 1)) return;
+
+      var res0 = uiInputModule.GetLastRaycastResult(0);
+      var res1 = uiInputModule.GetLastRaycastResult(1);
+      if (!res0.isValid && !res1.isValid)
+      {
+        uiInputModule.enabled = false;
+        uiInputModule.enabled = true;
+      }
+
+      _timer %= 1;
+    }
+  }
+}