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Questions tagged [lag]

A visible delay between input and screen update.

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Unity 2021 Silicon Build Performs Poorly with DynamicGI.UpdateEnvironment()

I recently upgraded my large-scale RPG world project from 2019 LTS version to 2021 for the native Silicon support. I have a Silicon based Mac and even though the game seems to have smoother FPS in the ...
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2 votes
1 answer
49 views

Handling acks during 1+ second packet loss with Glenn Fiedler's Reliable UDP Solution

I've read through Glenn Fiedler's awesome guide on Reliability over UDP and I'm currently working on my own implementation for fun and learning purposes. One pretty cool piece of Glenn's guide is that ...
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Huge input lag in C++ DX9 application when having many entities

So I have created a 2D game engine used for creating top down singleplayer shooters and now I encounter some massive input lags when I have spawned a few entities (maybe 20 opponents). This results in ...
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Lag Spike When Creating Model

I am creating a game using OpenGl in c++. Whenever I create a new model while the game is running, such as fire a bullet, there is a huge lag spike. The function that creates the model is below. ...
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How can I deduce my RPG lags for better performance? [closed]

Okay, so I've started making a game using Khan Academy's Processing JavaScript, and I'm trying to delag it a bit since the framerate is very shaky. So, I've taken the advice of someone, and they told ...
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2 answers
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How to give a certain scene different preference settings then other scenes unity

In my unity game that I am creating there are 4 scenes. 3 of those scenes rely on a backdrop because they are the main menu, death screen and the escape screen(for when you escape the place). ...
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How do I solve this physics slowdown?

within 10-20 min without touching the android game it would lag. Here is the Unity Profiler Debug. This if the fish clicker script where I started noticing lag. ...
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2 votes
1 answer
3k views

Unity FPS Drop on Android Low end devices

I have stumbled upon an issue that is now taking a lot more time than I assumed. I have a game that has a lagging issue and I have tried almost all techniques that I could remember to fix that but now ...
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1 vote
0 answers
267 views

Unity post processing Bloom lags on mobile

I made my (first) game today and noticed, that it looked kind of boring, so I decided to add some bloom to my camera and it was looking waaay better. The only problem was the performance, it dropped ...
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2 votes
2 answers
649 views

Lagging problem with chunk creation in Godot

We are developing a 2D game in Godot and we are stuck while trying to divide the map in chunks. Namely, the scene is a forest, where trees spawn positions were generated by noise: since the trees are ...
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1 answer
2k views

How to make a smooth projectile in roblox?

I am trying to make a projectile (Energy ball) for my game. I am using body velocities, but the issue is is that it seems laggy. I shoot it then half a second through flight it seems to stop in mid ...
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2 answers
476 views

Unity Custom InputManger for Cross-Platform Input

I have been working on my game for quite a while. one of its key features is cross-platform local multiplayer for example 2 players on 1 keyboard and some people on the controller. here is the 4th ...
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149 views

How to fx low FPS in a single threaded Directx9 3D game

We're having issues with low FPS in a third-person shooter 3D game. This happens when you have too many polygons on screen. The FPS is locked to 60, and the gameplay is fine, but the moment when you ...
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54 views

How can I handle bouncy collision lag in an online game?

In my online game, each client sends its player's x/y location to the other clients, and the other clients update the location as they receive it, with some interpolation. Issue: The game has bouncy ...
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1 answer
99 views

What aspect of performance should I be optimizing my code towards? (asynchronous chunk modification)

Preface I realized that the root of my question is a little simpler than all of the details below make it out to be. All other things being equal, what is the most important system aspect to optimize ...
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1 answer
279 views

How do online games deal with lerp overshooting?

From what I understand, when you lerp in an online game, you travel from point a to b based on the elapsed time since the last update. The problem is when you have a higher latency, and you start ...
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1 answer
381 views

lag compensation for slow bullets (opposing players perspective)

I have figured out how the server is suppose to "rewind" for bullet collisions so that when you hit a player on your screen, the server will also say you hit them. However, when you press a key to ...
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1 vote
1 answer
369 views

My Java Game's movement looks awfull. Maybe Problem with Thread.sleep

I have a big problem with my Java games. In every game I make the movement of the player and objects just looks awfull. The framerate is 60 fps without any problems. But the movement looks extremly ...
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1 vote
0 answers
32 views

Handling game message packet loss at low speed and at a microcontroller level

I read this: How do I handle packet loss in a client-server network model? ...But I'm looking for more advice. Currently I'm implementing my own lazertag vests. I'm programming hardware (8051 ...
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3 votes
1 answer
706 views

Lag Compensation in a Real-Time Game

I have been trying to implement some lag compensation techniques for a real-time game, I've found some good resources online, but I don't think I fully understand the server-side part of the problem. ...
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0 answers
198 views

How should I implement lag compensation in my racing game?

I've looked around and I see a lot of discussion about lag compensation for FPS's, but none for racing games. I know Mario Kart uses some sort of interpolation for other racers, but it doesn't ...
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249 views

The websocket messages in my online game are being served too slow

Im attempting to make a online game in python, though I have ran into a problem. Basically I want the game to be playable in many regions, but the websockets are to laggy to be played in farther ...
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1 answer
2k views

how to do client side prediction with server side collision detection?

I recently started working on my first multiplayer game and learning multiple game server mechanics. The game itself uses mouse movement. For the first version I used a very simple approach, where ...
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3 answers
635 views

Alternative to canvases (unity)?

I have a Unity project which requires a bunch of Canvases and, surprise surprise, they're creating a lot of lag. I've already turned off the graphics raycaster for every single one, but they still ...
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2 votes
1 answer
1k views

Delayed linear interpolation for networking

I'm trying to implement the delayed snapshot interpolation presented at Valve's article and also Gambetta's. My current implementation is almost identical as described in the 'Multiplayer object ...
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2 answers
2k views

MMO Server with C# asynchronous sockets performance

I have developed a 2D RPG MMO client / server. The server is developed in C# with asynchronous sockets. It is a pretty simplet implementation. The server gets the client's input / coordinates and ...
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3 votes
2 answers
2k views

Server reconciliation for multiplayer games

Reading the usual resources on multiplayer games (1, 2, 3); I have started working on my own multiplayer game. I used a naïve approach that for every input I receive from a client, I immediately run ...
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1 answer
661 views

How Many Entities can the Unity Game Engine Handle Before it Starts to Lag?

I am building a player model for my game, the model is very complicated due to its ability to be customizable. A single player entity can have 70 + entities including the head, parts to the face, arms,...
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2 votes
1 answer
1k views

How to solve "server lag" problems that break the game

How do real-time multiplayer games deal with latency problems (or “server lag”)? Imagine an online fighting game where 2 players battle head-to-head in real time. When a player performs an action, ...
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273 views

Unity has extreme lag while deleting trees from terrain

So I have a terrain with sections of water in it. I just placed a whole bunch of trees in the scene with mass place. However, it spawned trees in the water which I obviously want to remove. But when I ...
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1 vote
1 answer
152 views

How to prevent clients from stuttering while keeping the game in sync in multiplayer Pong?

I wrote Pong in multiplayer. The clients all run their own game, but I have an authoritative server which enforces its ball position onto the clients. The game is in sync and playable, however, there ...
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1 answer
380 views

Lag in collision detection

I am a beginner with PyGame and am currently making a simple game using but I am having difficulty with the collision detection. When the game runs, the response to the collision detection (printing ...
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1 answer
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JVM voxel game engine lag spikes

I'm experiencing short lag spikes after some voxel chunks have been created while not moving the camera around. I profiled the application: the JVM implementation uses a lot more memory, about 2.5 ...
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3 votes
1 answer
1k views

LibGDX - FPS drops

I've been trying to record some gameplay footage of the game I'm currently working on, using the Android SDK and ADB to do it. Whilst the game runs at constant 60 fps in my medium-end phone, as soon ...
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1 vote
4 answers
5k views

A* pathfinding takes too long, shortcuts needed

So I have a game where the player can move on a grid 108 X 192 large. It uses a simple A* path-finding algorithm to move. Unfortunately, After 0.03 seconds, it would have only looked at about 300 ...
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2 answers
241 views

The tolareable lag range in a multiplayer game

I am programming a multiplayer game. I calculate the ping in ms as : ping = the_time_i_recieved_pong - the_time_i_sent_ping I implemented client-side prediction ...
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1 vote
1 answer
175 views

OpenGL Applications Bring computer to halt

Whenever I run any application that utilizes the OpenGL interface, my entire computer comes to a halt, but it doesn't do this when it utilizes the DirectX interface. I run both Linux (Ubuntu 15.10) ...
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1 vote
2 answers
5k views

How can I simulate the effects of network latency to test my lag compensation?

I am trying to observe the effects of lag compensation in my game by increasing my ping to 200+, adding loss, and by the limiting bandwidth to simulate wide area network delays using Network Emulator ...
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1 vote
1 answer
577 views

Too many if statements cause lag? [closed]

I am trying to make a vertical scroller game with collision tiles on both sides. I'm using Libgdx and android studio. The problem is that i have made every tile as an object with a rectangle for ...
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3 votes
2 answers
2k views

2D Game has very bad lag because of one script?

I am making somewhat of a flappy bird clone (mostly for practice) and everything works fine, but it is just really slow with a low FPS of 13 and a max FPS of 28. Why would this be? So I ran a check ...
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6 votes
1 answer
579 views

Applying the input for the always-moving player in the multiplayer game

I've read several articles published on gambrielgambetta.com, gafferongames.com plus some pages about how Valve handles multiplayer networking in its games but I still can't get it how to implement ...
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4 votes
1 answer
3k views

How to measure packet latency?

In the context of lag compensation, one needs to know when the command is instantiated on the client (this can be named as "command execution time" as well). AFAIK, there can be 2 methods for this: ...
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2 votes
1 answer
261 views

Lag compensation in rocket game context

I have read a lot of papers recently to understand the lag compensation concept recently. They were all about the same context: shooter game where bullets move in infinite velocity. The most ...
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2 votes
2 answers
7k views

What makes Minecraft so CPU intensive, and what could be done to improve it? [closed]

Recently I've been searching for VPSes that allow Minecraft servers to be hosted, and surprisingly very few do. Most allow for games - but Minecraft in specific is disallowed by many. Now it's fairly ...
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1 vote
1 answer
2k views

What's the most recommended transmission format using websockets for a MMORPG? [closed]

(note: I'm not asking for the supported formats in the RFC, but the format I should develop to send/receive the messages, say, in the Application layer). (note 2: Please help me retagging this post ...
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1 vote
2 answers
290 views

Client Tells Server What Gamestate Data to Send Back

I'm just stepping into the world of MMORPGs and how they function, so assume I know very little. in a game, a client doesn't see everything that the server does. For example, the client can't see ...
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1 vote
1 answer
4k views

Unity game in edit the scene mode all of a sudden became incredibly slow/"laggy"

So I recently have been working on a game. So far I have very few assets in the game, which are a point light, a piece of terrain (which is textured), a player controller and a tree. Everything was ...
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1 vote
1 answer
1k views

LibGDX Touch Delay

So I'm trying to make a game in which you have to tap things fast, but the thing is - after you touch something (the area I chose), it takes like 2 more seconds to register another touch. Now, I think ...
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1 vote
2 answers
1k views

How do I handle game lag due to background apps

I'm developing a game using libgdx and have noticed on several occasions that other background apps running can cause lag in my game - especially when those apps are being updated in the background. I'...
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1 vote
1 answer
284 views

Why is there a huge update-delay in my client/server code?

I'm working on my Java game with Libgdx and having trouble with the network code. I can create a server, make multiple clients connect to it, but there is a huge delay between the player's input and ...
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