Questions tagged [performance]

The quality, efficiency, and speed of running gameplay as a result of several factors in the design and structure of the game and its architecture.

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High CPU usage with Godot tilemap

I am using Godot as my game engine and I am making a basic 2D game, I have a small map with 1 Player and 5 Enemies walking around in it. The game includes some basic code for walking and shooting at ...
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How to implement crowd movement in Unity without rigidbodies?

I am working on a mobile game where its core gameplay includes a bunch of objects (can exceed 100) walking around autonomously in an environment where they push each other and get pushed by other ...
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1answer
52 views

C# Jobs + Burst executing slowly (bottleneck?)

I'm trying to make a system where the player can do a RTS-like drag-to-select of tiles in a box to mark trees to be chopped or ores to be mined. I'm testing this system on a large scale, possibly ...
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More smaller scripts or less larger in Unity 2d Development? Better or worse performance? [duplicate]

In my unity 2d game I had large amount of scripts which were components of different enemies and obstacles. All of them were checking for collison, had FixedUpdate, Start and OnCollisionEnter2D and ...
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How to Pass Multiple VBOs to OpenGL for a voxel game

I'm trying to make a voxel engine (NOT based on an octree model). Currently I have a setup with a Chunk class, which stores the following: ...
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1answer
38 views

Libgdx pre-rendering Bitmap font to pixmap texture causes slow in-game rendering

Im using libgdx scene2d to render 2d actors. Some of these actor groups originally included scene2d Label actors for rendering static text. The Labels work fine but drawing ~20 of them on the screen ...
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1answer
77 views

Approximating off-screen action efficiently in a simulation game?

I have a character building constructs all over a pretty large map. My game blends elements of RTS and fast paced action in a room-based environment where players can only see one room at a time. I ...
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1answer
50 views

Improving performance of lighting on mobile

I'm trying to make a 3D game for mobile. When rendering a very simple scene, my performance drops from 60 fps to 30 fps when I use fragment shader lighting instead of vertex shader lighting. I really ...
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1answer
93 views

Should you avoid memory allocation and deallocation while the game is running?

I recently read this answer on this site, which says the following: making sure no allocation/deallocation is being done while the game is running is a golden rule of thumb. I interpret this as ...
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2answers
61 views

Make materials higher quality as the user gets closer

Scenario I have a sphere with an low-quality earth texture on it. I also have a much higher quality earth texture (Gigabytes in size) that I can use but it's too performance intensive to use on most ...
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What Unity editor settings maximize the editor performance?

I am teaching a Unity game development course through Zoom, and apparently the load of both Zoom and Unity is straining my 3 years old laptop. I would like to change some settings in the Unity editor ...
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Is treating object meshes as nav meshes a sensible strategy for grounding characters?

It bothers me that a lot of character controllers are written to rely on raycasting for movement along the ground. While this solution is very straightforward and general (especially in the sphere ...
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How can I efficiently and safely represent and query game state in the logic programming paradigm?

After learning Dialog, I've discovered representing game logic using the logic programming paradigm is a lot of fun; the composability and non-locality makes it feel like some kind of superior ECS. ...
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2answers
135 views

Is it plausible for Tetris to be running at around 250 fps on a laptop?

I coded a simple Tetris game to for some programming practice. It has all the features you would expect from Tetris, like rotating shapes and clearing rows. I implemented a frame rate measure tool out ...
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3answers
4k views

Performance degrading when resolution increases for a 4k screen

I am new to Unity. I have a problem where my game has good performance on my non-4k screen. Bur when I play it on my 4k screen, the performance gets really bad. It looks like the resolution is ...
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22 views

How do I display canvas world space on top of everything?

I want to make a display of enemy HP information through walls. And also a tag above the enemy, like in FarCry. The dual camera method is not a good idea because it is VERY slow performance. (Was ...
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30 views

Testing graphical & network performance of a game

I'm trying to compile a list things I should test to measure whether the development of a multiplayer game is going well. I've put a few links referring to Unreal to illustrate because that's what ...
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1answer
132 views

CPU / GPU usage are both below 100% - what is bottlenecking my game?

I've been developing a C++ OpenGL game for the last couple of months. A few weeks ago I was profiling the game and I noticed that the GPU usage was almost at 100% (with the framerate uncapped). I ...
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20 views

Performance: Multiple asset references vs. One public asset reference

I am making a dungeon crawler where each room can spawn its own enemies. Right now I need a way to reference the enemy prefabs. One way of doing it is by having the references on the room script, like ...
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1answer
106 views

How does a game like slither.io handle collision?

This question can be generalized to "how does one efficiently determine if a collision has taken place between curvy lines" On https://slither.io there are snakes that players play as that ...
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186 views

Character controller versus nav mesh agent for wandering?

I'm starting to work on the AI for my game, and one character will need to wander around aimlessly until one of its other states are triggered. With that, and after plenty of searching, I found a ...
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52 views

Unity3d performance issues on macOS

I created a game prototype in Python, using Panda3D. I finished entire MVP game logic, prototype assets, networking (client and server side), created rudimentary UI, and everything is working well. ...
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1answer
135 views

Why are clipping planes... plane?

A frustum is used to clip geometry, deciding which parts of it are visible. It seems that most cameras use a frustum shaped as a pyramid segment, i.e. a box between two rects of equal alignment on ...
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1answer
93 views

Should state and behavior be combined for Buffs? Cannot decide between data-driven and OOP approach

I'm writing a 2D roguelike that uses an Entity Component System and I'm having trouble deciding between the traditional OOP approach versus a data-driven approach to implementing buffs and debuffs. ...
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43 views

Solution for efficient time-keeping in Javascript games?

I'm developing a real-time browser roguelike using an ECS and currently I'm unsure of how to handle time. As of right now, whenever I need the current time, I just call ...
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1answer
84 views

2D vs 3D mobile power consumption in Unity [closed]

For an optimised and playable game written for mobile with Unity, how much of a difference is there in power consumption between 2D and 3D? Assuming: Unity game engine The game requires constant ...
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146 views

Using Particle.position to place particles - positions incorrect?

I have a particle system based on this answer to another question about manually placing particles (no movement). However, it's very costly to run Emit() after ...
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1answer
44 views

How can I improve the performance of my game that plays a video?

I have a level where I have embedded 5 short videos and the levels lags a little compared to the other levels, so it seems that adding videos in a Unity made game is expensive on its performance and ...
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1answer
237 views

Performance issue when particle system occupies most part of the screen

I'm using particle systems to create stars in my space sim project. The star is made off 2 particle systems: star surface (max particles: 500) and corona (max particles: 250), both use the Mobile/...
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29 views

How to automatically select a graphical quality level?

I'm making a game that lets the users choose their graphical settings, with the usual categories: low, medium, high. I want to implement an "auto" category, and decide what the appropriate ...
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4answers
8k views

Intentionally using "worse machines" to develop a game?

I am developing a game intended for desktop computers. I am afraid of developing a game that will be too costly in aspects of performance, so I am wary of using a machine that might be better than the ...
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2answers
89 views

How to check if gun may shoot again (because animation has stopped playing)?

When the user presses the fire button, I set a trigger: _animator.SetTrigger("HG_Shoot"); This trigger causes a "pistol shoot" animation to be ...
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1answer
71 views

With GGPO rollback netcode, how many times might I need to update my game engine in one frame?

I'm working on a game that's going to use GGPO for rollback netcode. I understand the need for a deterministic engine whose state can be saved, restored, advanced from user inputs, etc. I understand ...
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2answers
292 views

Is it better to load all of the scene at once or load small parts of it as the player moves?

I want to create a lot of detail in my game but I don’t want to kill the frame rate tracking all the models and movements (like all the grass). Will loading them in pieces save the frame rate or will ...
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1answer
296 views

Any fast alternative to sine in GLSL?

Should I just use the built-in sin() function or my custom sine function? I'm concerned about performance here. I don't care about accuracy much here because I use it to just get wave effects in my ...
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18 views

Nearest Vector3 to Vector3 from last frame

Suppose you have a Vector3 provider of pointcloud positions that update every frame - call it Nullable<NativeSlice<Vector3>> pointClouds Say you want to ...
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1answer
73 views

High-performance update of a bitmap grid

I need to visualize a fast paced process in .NET in 2D. I am planning to use writeable bitmap 800x40px. The idea is like this - there are objects which are represented by very basic colours and sizes ...
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1answer
631 views

Significant frame drop upgrading from Unity 2019 to Unity 2020

I used to use Unity 2019.4.22f1, but now that 2020.3.0f1 has been marked as LTS, I've decided to switch to it. For no apparent reason, it seems like my game is getting consistently lower framerate, ...
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31 views

Unreasonable CPU consumption for server build with nographics

I have built my game in server mode on Mac OS and attached profiler to it. In profiler I can see unreasonable high cpu load. Other scripts take a lot of cpu time. How can this be optimized? Vsync ...
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1answer
40 views

Unity Nav mesh lading data each frame

Hey all I had a question, I was looking into my game's performance and noticed this in the profiler: Is there any way to optimize this such as pre-generating tiles so it doesn't have to do it each ...
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2answers
115 views

Which method for creating a Loot chance, int or float?

Which of these two methods for creating a loot chance is easier to maintain and update? The first method I'm thinking of uses an int going from 0 to 100000 (0,000 ...
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4answers
3k views

How can I efficiently load huge volumes of star systems?

I am working on a space exploration and combat game, and I can create galaxies, nebulas, solar systems, and load and unload them procedurally as needed. Meaning the stars that the player can see are ...
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1answer
464 views

Is grass object amount limited in Unity?

I'm using Unity 2019.3.7f1 free version to create a small game project. I have a large terrain which I want to fill with grass. To achieve that I'm using the grass brush tool provided with the terrain....
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60 views

Speeding up map rendering

My map loading and rendering process is slow when using very large maps, so I'm looking for ways to make it more efficient. My current solution works like this: My map loader uses for loops for ...
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39 views

16bit triangle lists vs 32bit triangle strips

When drawing geometry we may use indexed drawing, where we pass index of the vertex we want to draw in array. In this case we need to pick a topology for our geometry and the type of indices. Popular ...
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2answers
354 views

Downsides of using a large texture atlases?

So I am using Unity to build a 2D game and one thing that I needed is to be able to render a lot (talking about 10s of thousands) of sprite to the screen so I have a custom solution that basically is ...
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1answer
51 views

why each game does not provide the option to download only one graphic quality, instead of having to download low, medium, high and ultra graphics? [closed]

If there is an option like this it will definitely save storage space. When you download or stream a film there is an option for graphic quality, and we only download that one graphic quality. Or is ...
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1answer
302 views

Rendering voxel data efficiently

With Metal, I need to pass in an array of primitives to the GPU to be rendered. I'm making a terrain-based voxel game like Minecraft, but I have a problem. foring ...
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2answers
243 views

Why do we need more than 24 FPS?

Many movies (probably, all moovies, except for the most recent ones) have 24 frames per second, and we're quite happy with it. There is a thing called "Subliminal stimuli" or "...

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