If you change the color of a brick from red to bright pink on your own client, then that brick will be bright pink on your client, but not on everyone else’s - given that the game has FilteringEnabled on. What does FilteringEnabled do? FilteringEnabled basically prevents the replication (that’s a fancy word for “tells every other client and the server”) of properties that the client makes to its own world.
That is why Roblox introduced FilteringEnabled a year ago, after struggling for 7 years with the “single-world” model. On the other hand, the side effects are a lot of inefficient and laggy systems. This design is very intentional, and makes it a lot easier to hop into game development on Roblox. And remember, each message takes resources and time, leading to less for the physics and other important information. Does the server need to know that your background frame changed from transparency 0.5 to 0.51 as you animated it? Nope. Roblox replicates (that’s a fancy word for “tells every other client and the server”) every single change on the client to the server.The reason why wait(1) seems to fix most scripts is because it gives Roblox enough time to finish telling the other client(s) and anything else that X happened. Furthermore, this assumption can lead to weird glitches that confuse new developers. That is why Roblox had to add WaitForChild() and other things to help facilitate the loading of Robloxgames. Developers assume data travels instantaneously, but in truth, it does not.Yellow client can tell green and blue that, “this world now has rainbows and unicorns, oh, and the murder is now a popsicle,” and lo and behold, it is the truth Hackers can do whatever they want to your game, and Roblox’s server will diligently carry out this task.A horrible horrible lie that makes developers find all sorts of bugs in their games. If it happened on blue client, we assume it has happened on yellow client and green client. That is, Roblox hid (obfuscate), the networking, leading most users to think of Roblox game development as a single-world thing.Ĭlients talking to each other, with no delay, and no differential experience. In order to simplify the development process, Roblox made it so every change on one client, results in the same change on every client. This is because unlike you, who have you learned about networking and how Roblox works, most users do not. Yes, that is right, without FilteringEnabled, Roblox will allow one client to tell the server exactly how something is suppose to be, and the server will blindly follow out the command. You see, in nonfiltered games, it is common to enter and see the whole game changed, gone, modified by someone hacking. So about a year ago, Roblox released “FilteringEnabled.” What is FilteringEnabled, well, it enables filtering? What is it filtering? It’s filtering the information that Roblox clients can send to the server. Parts with no clients near them (thus, no physics owner), slow down to a standstill, or even freeze in place, from lack of anything to process it.įilteringEnabled: or, what is being filtered.If you have any sort of physics object (like a BodyForce) on the server, and you change it on the server, that means Roblox’s server will be forced to resume control of the model for a little bit before switching it back to the client.Roblox physics on large moving objects can be slow.Roblox parts, as mentioned before, will teleport when switching physics owners.It’s impossible to get the rendered (displayed) position/rotation of a Roblox moving part, because you cannot read the interpolated position of the part.There are a few fallout bugs from this system. Sine their model does not match yours, the part will teleport. When moving parts start teleporting, this is Roblox physics owners swapping and another client taking control of what happens to this part. These parts are the ones closest to you, and that is why parts near you are very smooth and silky - that is, until another player comes near you. Roblox also uses the concept of “Physics owners” that is, your client can “own “ a part and do the physics calculations on it, keeping the load off of the server. This means that even if the server is dropping the ball on sending information, Roblox will still try to guess what the server would send to you, and then makes that appear on your screen. For one, Roblox extrapolates (that is, guess), what the position of a part is. Now, Roblox does counter this lag with several things. If the server is running slow, or something, it may take a bit more time to send it off to the other clients. Now, when anything happens on a client, Roblox sends this information to its server. For all intents and purposes, you can ignore these other games for now.