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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1answer
127 views

Drawback of using multiple bind flags

As far as I understand Direct3D 11 I have to specify certain BindFlags in order to use a resource in a specific stage of the pipeline. From my experience some combinations are more common like ...
4
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1answer
113 views

Capturing a programs performance

I'm trying to capture the performance of the GPU, CPU, FPS and memory usage on a program I'm currently working with and want to avoid having to write my own performance capture stuff. Does anyone know ...
3
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4answers
1k views

Why does using multithreading during my load screen increase my load times? [closed]

OK, I added a loading screen to my game, and in order for the game able to update and show a loading screen and load stuff in the background I came to the concludsion that I needed to host the loading ...
2
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1answer
425 views

Can using different vertex-buffers for each vertex-attributes be good in certain scenarios?

Is there scenarios where this is actually good practice? Or does it slow down performance? Example: //Vertex format is: //X, Y, U, V var myXYs:Vector.<Number> = new <Number>[ -1, -1, ...
26
votes
6answers
11k views

How can I improve rendering speeds of a Voxel/Minecraft type game?

I'm writing my own clone of Minecraft (also written in Java). It works great right now. With a viewing distance of 40 meters I can easily hit 60 FPS on my MacBook Pro 8,1. (Intel i5 + Intel HD ...
8
votes
2answers
515 views

Automating XNA Performance Testing?

I was wondering what peoples approaches or thoughts were on automating performance testing in XNA. Currently I am looking at only working in 2d, but that poses many areas where performance can be ...
11
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4answers
3k views

How to continuously find all entities within a radius efficiently?

I have a very large number of entities (units). On each step, each unit needs to know the positions of all units near it (distance is less then given constant R). All units move continuously. This is ...
14
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3answers
6k views

Why does OpenGL >= 3 only allow VBOs?

I see that OpenGL versions 3 and up eliminate the use of client-side rendering. Immediate mode has been eliminated, and vertex arrays seem to be deprecated. Instead, if I understand correctly, VBOs ...
0
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0answers
69 views

What are the responsibilities of a game engine, and which of these things need to especially be efficient? [duplicate]

Possible Duplicate: What should a game engine do? What are the usual responsibilities of a game engine, and which of these things especially need to be efficient (performance-wise)? Can I ...
0
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0answers
93 views

Drawbacks for using only quads for model geometry [duplicate]

Possible Duplicate: Why do game engines convert models to triangles compared to keeping it as four side polygon What are the main drawbacks for using "only" quads for model geometry? Does ...
10
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1answer
1k views

Is precomputed pathfinding still relevant?

Context Old Lucas Arts (ScummVM era) point and click graphic adventure games used precomputed pathfinding. Here's a rough outline of the technique. Step 1 The floor in each room was divided into ...
2
votes
1answer
720 views

Moving a big set of box2d bodies in an iOS endless side-scroller game (such as Canabalt)

I am working on an iOS endless-running game (Robot Unicorn, Canabalt, etc). I'm using box2d for the Physics and Collision Checking and cocos2d for graphics. To achieve the notion of an endless level, ...
0
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3answers
430 views

Which should be faster: 10 flat shaded polygons or 2 with a transparent texture

I have particle system, and I want to the individual particles to take the shape of a star. Which should be faster: Drawing the 10 polygons using a flat shader, or 2 polygons (a square) with a ...
2
votes
1answer
888 views

Drawing a textured triangle with CPU instead of GPU

I understand the benefits of GPU rendering and such, but for a certain limited application I need to render textured triangles purely using CPU. I've built a 3D engine capable of object handling, ...
8
votes
3answers
613 views

How often to save player's state in persistent online games?

In online games, people prefer to log on and off whenever they want. Usually, their game achievements are seamlessly saved, on the server. That is not that difficult to achieve, but I am wondering how ...
7
votes
2answers
2k views

How to efficiently store and display a tile map on the web?

About These are actually two questions in one. First of all I am looking for a way to efficiently store large amounts of tile data. The other aspect deals with querying the data set and displaying ...
0
votes
1answer
268 views

What early design decisions are important for creating “performant” multiplayer games?

I want to create online games and focus on the performance from the beginning. I searched on the internet, but didn't find any an particular answer concerning the design level or development level ...
3
votes
1answer
2k views

How many moves to think ahead for chess minimax AI?

I am thinking of making a chess game, and I read up on minimax trees. How many moves should the AI think ahead so that the player doesn't have to wait a long time? If there are 25 possible moves ...
3
votes
2answers
463 views

How to increase update speed of game?

I have a basic game, in which the player moves the environment around the screen, to give the gamer an impression that the player is actually moving. I want this game to be large and have an open ...
9
votes
2answers
4k views

How to handle multiplayer in JavaScript?

I'm just doing a bit of research into tech to use for a mobile multi-player game. It's more an experiment at present so for the moment, the only thing that Players need to be aware of is the other ...
8
votes
3answers
2k views

Better Way To Set Up an Event System

Event Systems are amazing, they make extremely unwieldy code tame and really allow for dynamic creation of games through easy communication of objects and the game loop. I am having a hard time with ...
3
votes
2answers
1k views

XNA game randomly drops to 40fps

I have a fairly straight forward 2D game written in XNA. I'm finding that it arbitrarily drops from 60fps to 40fps. I've tested this drop extensively and have concluded it's not related to graphics ...
5
votes
5answers
2k views

Path planning for volumes in games

How would you path plan a volume for a game? For example a 1 km cube with tunnels and caverns. Also the terrain is destructible. You have walking and flying modes. I would separate it into phases. ...
0
votes
1answer
403 views

Game (X-Plane) boot/startup time / performance

I use X-Plane for my question but it also concerns probably every other flight-simulator or simulation game in general. When developing a plugin what bothers me most is the startup-time of the ...
7
votes
4answers
2k views

Why do games run so much better in Windows than in OSX?

For example, on my Mac Mini with Bootcamp, Team Fortress 2 runs at about 20fps in OSX and 80fps in Windows. This seems to be a common case. Why is this?
6
votes
1answer
873 views

How many shadow casting lights are in modern games?

I'd like to know how many shadow casting lights are supported in modern games, such as Uncharted 2, Crysis 2, Modern Warfare 2, Halo: Reach, etc. Do they all limit themselves to just a couple of ...
1
vote
1answer
499 views

Best way to do a strategic map for a 4X space game on a web page?

I'm currently looking at the options regarding how to do a strategic map for a web application. My goals here are : a synthethic view of what's happening in a stelar system the ability to ...
5
votes
4answers
1k views

Can Flash games packed for iOS and other mobile devices achieve reasonable performance?

I was thinking of developing a game in Flash, as a hobby/educational project. However, I was hoping I could make it run on a smartphone, but a friend who develops in Flash says that in their ...
8
votes
4answers
2k views

Which Database (RDBMS vs NoSQL vs BOTH) to use for a Realtime Multiplayer Game?

I'm working on a realtime multiplayer game that will require a database (for features such as player profiles, friends, unlocks, news, etc.) This is a standard PC game (not browser-based) and will use ...
6
votes
4answers
2k views

Is Carmack right about PC performance? And does Windows 8 address his concerns?

Here John Carmack claims that PCs are still slower that current gen console hardware because of the overhead. "A lot of it's driver overhead issues, where there's so much that we do in the game, ...
2
votes
3answers
423 views

Where to start with hardware-specific low-level programming?

Seeing as today's machines have insane computing power and near endless memory, it's tough for a hobbyist programmer to actually hit the limits of his machine without doing something totally ...
-3
votes
0answers
316 views

Why OpenGL provided with latest GeForce drivers is so extremely slow?

I'm writting a code in OpenGL and using two computers - an old and a new one. On the old computer (which I use for debugging/creating implementation for the old GL) I have GeForce 5500 FX. Before ...
14
votes
3answers
2k views

Is there any documentation comparing/contrasting C++ standard library implementations?

(This is not game programming per se, but I'm certain if I asked this on SO I'd get told not to prematurely optimize, even though history tells us every large game ends up worrying about these ...
1
vote
1answer
169 views

optimal pixel-read back strategy

I need to render certain scenes and read the whole image back in main memory for further processing which is not suitable for rewriting into shaders of CUDA, and saving to disk. I've search for this ...
0
votes
2answers
662 views

Graphical Android game: Bad performance in some situations

I am developing a simple graphical game for Android (Java and OpenGL ES). There is no high-end graphics involved, basically a few (less than 10) sprites and some (about 10) dynamically drawn ...
1
vote
3answers
137 views

Regulating how much to draw based on how much was drawn last frame

[Edit: I found an answer - see below] I have a 3D game world on an iPhone (limited graphics speed), and I'm already regulating whether I draw each shape on the screen based on it's size and distance ...
5
votes
1answer
835 views

Java rendering performance bottlenecks

I've read a lot of forums about making 3D games in Java but I was unable to build a full picture of how it performs in video games. I know that it works smoothly for small and average size games, but ...
13
votes
1answer
933 views

Is nVidia's CUDA suited to performing pathfinding calculations?

I want to know if it would be worth executing pathfinding on the GPU (using nVidia's CUDA, or an equivalent) in certain situations, or whether it would be a wasted effort. The situation I imagine ...
4
votes
1answer
422 views

Network Game testing via Wireshark

How can i check/inspect the performance of my network game via Wireshark and specifically the Graphs available in Wireshark,i want to test the performance of my network game. which kind of graphs can ...
3
votes
3answers
500 views

Suitable Client Server setup for Network Game testing

I want to test my Client/Server game for which, currently, I am using localhost for both Client and Server. Obviously I'm not getting any fluctuation in data and measure idea of performance, and in ...
1
vote
2answers
157 views

Observing particular Port for measuring network game performance

How can I check/inspect the performance of some network application via observing the port it used, I want to test the performance of my network game. If my game is using port 1009, how can I check ...
2
votes
2answers
2k views

Fastest way to get all adjacent tiles?

What is the fastest way to get all adjacent tiles in a two-dimensional array of tiles, converted into a single-dimensional array? If you don't know the answer, then the fastest way to do it in a ...
11
votes
2answers
1k views

Multiplayer FPS server side performance

This is related to MMO Performance except that question is about bandwidth. This is about cpu load. I put together a simple FPS using node.js and webGL. It's extremely simple, a lot like the ...
0
votes
1answer
2k views

Fullscreen + Vsync = Stuttering

In my research for a stuttering problem in my game engine, I think, I have found the problem, but don't have any idea why this is happening, that's why I ask you if you have an idea ! The situation : ...
6
votes
3answers
507 views

Computing volumetric light effects analytically

In my previous question I have asked about an effect on how to visualize light spheres. The question resulted in a very nice formulated answer which described pretty well how to achieve this by adding ...
6
votes
8answers
421 views

Is it useful to monitor framerate over the course of an arbitrary (but long) period of time?

How useful is it to keep a measurement of framerate over the course of long times (such as an hour) spanning multiple scenes/data environments? I've had plenty of times where data throttling/pushing ...
6
votes
1answer
1k views

Adding a simple mix() destroys the framerate

I have a very simple shader and added linear fog via mix like this: finalColor = mix(finalColor, vec3(0.5, 0.8, 0.95), vUVoutAndViewZ.z); Note that the view Z distance is in the variable that also ...
5
votes
1answer
554 views

How to insert and remove blocks quickly in a Minecraftian world?

I currently have volume data for the world stored as an array of booleans. I then check each empty block and if it has non-empty neighbors the faces get drawn. This prevents me from sending a bunch ...
16
votes
5answers
18k views

Objective-C or C++ for iOS games?

I'm pretty confident programming in Objective-C and C++, but I find Objective-C to be somewhat easier to use and more flexible and dynamic in nature. What would be the pros and cons when using C++ ...
7
votes
2answers
3k views

Multi threaded game - updating, rendering, and how to split them

From the StackOverflow post (it was recommended I move this): So, I'm working on a game engine, and I've made pretty good progress. However, my engine is single-threaded, and the advantages of ...