Index: source/simulation2/components/CCmpRangeManager.cpp
===================================================================
--- source/simulation2/components/CCmpRangeManager.cpp
+++ source/simulation2/components/CCmpRangeManager.cpp
@@ -1584,6 +1584,8 @@
 
 	LosVisibility ComputeLosVisibility(CEntityHandle ent, player_id_t player) const
 	{
+		PROFILE2("ComputeLosVisibility");
+
 		// Entities not with positions in the world are never visible
 		if (ent.GetId() == INVALID_ENTITY)
 			return LosVisibility::HIDDEN;
@@ -1627,7 +1629,6 @@
 		}
 
 		// Else, default behavior
-
 		if (los.IsVisible(i, j))
 		{
 			if (cmpMirage)
@@ -1636,7 +1637,28 @@
 			return LosVisibility::VISIBLE;
 		}
 
-		if (!los.IsExplored(i, j))
+		i = (pos.X / (int)TERRAIN_TILE_SIZE).ToInt_RoundToZero();
+		j = (pos.Y / (int)TERRAIN_TILE_SIZE).ToInt_RoundToZero();
+
+		bool explored = los.IsExplored(i, j);
+		for (int ii = -it->second.size; ii <= (int)it->second.size + 1; ++ii)
+			for (int jj = -it->second.size; jj <= (int)it->second.size + 1; ++jj)
+			{
+				if (ii*ii + jj*jj > (int)((it->second.size+1) * (it->second.size+1)))
+					continue;
+
+				if (los.IsVisible(i+ii, j+jj))
+				{
+					if (cmpMirage)
+						return LosVisibility::HIDDEN;
+
+					return LosVisibility::VISIBLE;
+				}
+				if (!explored && los.IsExplored(i+ii, j+jj))
+					explored = true;
+			}
+
+		if (!explored)
 			return LosVisibility::HIDDEN;
 
 		// Invisible if the 'retain in fog' flag is not set, and in a non-visible explored region