NetworkIdentity.passive

Assets/Mirror/Core/NetworkIdentity.cs

@@ -40,6 +40,9 @@ public struct NetworkIdentitySerialization
     [HelpURL("https://mirror-networking.gitbook.io/docs/components/network-identity")]
     public sealed class NetworkIdentity : MonoBehaviour
     {
+        [Tooltip("Performance optimization for passive objects like Npcs, ItemDrops, Trees, Structures etc. skip broadcasting.\nPassive objects only spawn and despawn, their state isn't synced.\nThis can make a huge performance difference for large worlds with lots of passive objects.")]
+        public bool passive = false;
+
         /// <summary>Returns true if running as a client and this object was spawned by a server.</summary>
         //
         // IMPORTANT:

Assets/Mirror/Core/NetworkServer.cs

@@ -1667,6 +1667,8 @@ static void BroadcastToConnection(NetworkConnectionToClient connection)
                 //  NetworkServer.Destroy)
                 if (identity != null)
                 {
+                    if (identity.passive) continue;
+
                     // get serialization for this entity viewed by this connection
                     // (if anything was serialized this time)
                     NetworkWriter serialization = SerializeForConnection(identity, connection);

Assets/Mirror/Examples/BenchmarkIdle/Npc.cs

@@ -26,6 +26,8 @@ public override void OnStartServer()
             // color coding
             // can't do this in update, it's too expensive
             rend.material.color = sleeping ? sleepingColor : activeColor;
+
+            netIdentity.passive = sleeping;
         }
 
         [ServerCallback]