exclude cache objects from foreground metric

SynthDet_V2/Assets/Scenes/SynthDet.unity

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:04d5b2bcfb597bbc7f8410dc3dd7a7fd59439397d69bbefc2a805b2ab94bbed3
-size 103518
+oid sha256:5fbbd1379e1e2df31d0f56a3746805dc1512671f33624de4cd0a84c7ab4e7b4a
+size 103517

SynthDet_V2/Assets/Scripts/ForegroundObjectMetricReporter.cs

@@ -51,6 +51,10 @@ namespace SynthDet.Randomizers
             var objectStates = new JArray();
             foreach (var tag in tags)
             {
+                if (Math.Abs(tag.gameObject.transform.position.x - GameObjectOneWayCache.outOfViewX) < 0.001)
+                {
+                    continue;
+                } 
                 var taggedObject = tag.gameObject;
                 if (!m_LabelingComponentsCache.TryGetValue(taggedObject, out var labeling))
                 {

SynthDet_V2/Assets/Scripts/GameObjectOneWayCache.cs

@@ -18,6 +18,7 @@ public class GameObjectOneWayCache
     List<GameObject>[] m_InstantiatedObjects;
     int[] m_NumObjectsActive;
     int NumObjectsInCache { get; set; }
+    public const float outOfViewX = 10000;
     public int NumObjectsActive { get; private set; }
 
     public GameObjectOneWayCache(Transform parent, GameObject[] prefabs)
@@ -73,7 +74,7 @@ public class GameObjectOneWayCache
                 foreach (var obj in m_InstantiatedObjects[i])
                 {
                     // Position outside the frame
-                    obj.transform.localPosition = new Vector3(10000, 0, 0);
+                    obj.transform.localPosition = new Vector3(outOfViewX, 0, 0);
                 }
             }
         }