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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1
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1answer
156 views

Optimize maximum performance “Frustum.contain ()” on XNA?

I wonder if it is possible to optimize the performance of "BoundingFrustum" requesting return of the visible elements that are found only on the part of the ground before the player .. Checker and not ...
1
vote
3answers
244 views

One AI object for each npc

Let's think for a moment a game where you'll have around 1k npcs, each one has to take its own decisions. Should each one has an object that decides what to do, or maybe exist one to process every ...
1
vote
1answer
146 views

Travelling in a 2D grid

I have a 2D grid (x,y coordinates) where each cell corresponds to each pixel of the interface that I am working with and I have a point A(x1,y1). Now I need to travel around in the grid, and I wont ...
0
votes
2answers
282 views

D3DXCreateEffect Performance

Current performance analysis shows that D3DXCreateEffect is called many times with different shaders. Between each call, the D3DCompile DLL is being loaded and unloaded. Is there an easy way to keep ...
10
votes
1answer
763 views

Managing graphic state and components?

I often tend to do a lot of premature optimazation when dealing with graphics. There are a few principles I always try to follow: Keep the number of D3D components to a minimum. (Render states, ...
0
votes
1answer
832 views

Using 4096*4096 background image in uinty tk2d

I am new to Unity and I am developing a game using unity its a 2d game i am using tk2d framework. I have a big background image(4096*4096) how can I load this background so only visible part of the ...
5
votes
1answer
188 views

GLImpl.gldrawelements longer than usual

I'm developing a little game engine for the Android platform and I'm trying to improve the performance of this one. (I'm not an OpenGL expert) I can see a framerate drop sometimes, when using DDMS ...
-1
votes
1answer
135 views

GLES2 rendering performance for different iPad generations

I'm using C++/GLES2 for iPad only (no iPhone). The only device I own is an iPad2 and I do not plan to support iPad 1. Can anyone help me understand realistic goals/limits on iPad 2/3/4 in terms of ...
1
vote
0answers
86 views

iSGL3D Occlusion Culling

I was testing a cool 3D Scene Graph Library called iSGL3D. Since I found some functions called alpha culling for displaying partly hidden objects (making the ones in front transparent). I was ...
3
votes
3answers
518 views

What is better for the overall performance and feel of the game: one setInterval performing all the work, or many of them doing individual tasks?

This question is, I suppose, not limited to Javascript, but it is the language I use to create my game, so I'll use it as an example. For now, I have structured my HTML5 game like this: var fps = ...
1
vote
3answers
3k views

MonoGame performance better then XNA?

I am currently thinking about porting a XNA game to other platforms using MonoGame. Do I understand this correctly that I can expect the game to render faster even under Windows 7 due to the use of ...
1
vote
0answers
84 views

XNA Kinect Color Stream Performance Issues

I am developing an XNA game using Kinect. It requires using Depth and Color streams for extracting only the player's image from the color image. So far I can extract the image and set their data into ...
2
votes
1answer
112 views

SpriteBatch.Draw with scale or rotation trigger a new batch?

I recently read that any transformation changes will cause a new batch to be triggered. So, if I have 10 Sprites and each has a different rotation or scale will there be 10 batches sent up? Or is ...
13
votes
1answer
985 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 ...
2
votes
3answers
5k views

Slow Firefox Javascript Canvas Performance?

As a followup from a previous post, I have been trying to track down some slowdown I am having when drawing a scene using Javascript and the canvas element. I decided to narrow down my focus to a ...
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, ...
6
votes
2answers
592 views

An odd performance problem rendering a simple scene (less than 14k vertices) in OpenGL using two vbos with LWJGL

Problem I have been having a strange degrading performance issue rendering a simple scene containing two "chunks" of 4x4x4 cubes each. Video of problem This is a screen capture showing my console ...
6
votes
3answers
3k views

C++ and OpenGL ES: glDrawArrays calls are time consuming

Currently, I'm profiling my iOS. All the calls to glDrawArrays are expensive. For example, here is a screenshot of the rendering part of a particle system: As you can see, the glDrawArrays call ...
8
votes
3answers
786 views

Vector3 vs. Vector2 - performance, usage?

I'm currently playing around with XNA, and creating a simple 2D platformer. I was thinking of adding multiple layers to make it a little bit of challenge. In stead of having a Vector2 for my ...
2
votes
2answers
2k views

How do I simulate a crowd in the stadium stands?

I'm working on a mobile sports game with Unity. I'm wondering how I could create an efficient effect of an audience in the stadium. I know that with more than 15 characters in my games (with 1800 ...
2
votes
2answers
215 views

Approaches for storing grid-like information

I am drawing this simple grid on my NodeJS server: var grid = []; for(var x = 0; x < 20; x++){ grid[x] = []; for(var y = 0; y < 20; y++){ grid[x][y] = 0; } } ...
0
votes
1answer
166 views

Vector2's static methods and the garbage collector

I discovered that Vector2's static methods return a different Vector2 from the parameters you give them and I'm under the impression that creating new objects and dereferencing old ones on this kind ...
27
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 ...
1
vote
0answers
528 views

shader-based particle systems [closed]

I have a classic particle system where each particle is represented by a quad and, each time step, I move each particle. My target is webGL which means I don't have instancing, attribute divisors nor ...
1
vote
1answer
135 views

Performance tracking/monitoring in games [closed]

Let's say I have an online game with a downloadable client / browser plugin. I want to track performance of my software and automatically send summary to the server. Let it be fps, latency, load time, ...
2
votes
1answer
526 views

SFML - Completely Unlimit Framerate

I am trying to completely unlimit the SFML framerate, so that as many frames will be displayed as possible. The reason for this is I want to loop through one section of code which calculates positions ...
1
vote
1answer
1k views

How fast do games in Flash C++ Compiler execute compared to C++?

Flash Player can now run C++ code, that is cross complied with the Adobe Flash C++ Compiler. How fast does such code run in comparison to a C++ application running as an EXE, in the context of gaming? ...
5
votes
3answers
2k views

Libgdx optimization of big arrays

I am working on a game using libgdx and I have the following code that I want to optimize. Array<Bullet> enemyBullets = Enemy2.getEnemyBullets(); for (Bullet bullet : enemyBullets) { ...
5
votes
1answer
868 views

Improving SpriteBatch performance for tiles

I realize this is a variation on what has got to be a common question, but after reading several (good answers) I'm no closer to a solution here. So here's my situation: I'm making a 2D game which ...
3
votes
2answers
149 views

Trade offs of linking versus skinning geometry

What are the trade offs between inherent in linking geometry to a node versus using skinned geometry? Specifically: What capabilities do you gain / lose from using each method? What are the ...
1
vote
1answer
162 views

Animate multiple entities

I'm trying to animate multiple(3) entities using one model(IQM format). It's working but performance is really bad because I'm calling animate function for each entity in my game loop (I think ...
1
vote
2answers
250 views

How to efficiently map tokens to code in a script interpreter?

I'm writing an interpreter for a simple scripting language where each line is a complete, executable command. (Like the instructions in assembler) When parsing a line I have to map the requested ...
1
vote
1answer
2k views

Optimized algorithm for line-sphere intersection in GLSL

Well, hello then! I need to find intersection between line and sphere in GLSL. Right now my solution is based on Paul Bourke's page and was ported to GLSL this way: // The line passes through p1 and ...
1
vote
2answers
564 views

Recommended formats to store bitmaps in memory?

I'm working with general purpose image rendering, and high-performance image processing, and so I need to know how to store bitmaps in-memory. (24bpp/32bpp, compressed/raw, etc) What is the "usual" ...
4
votes
1answer
3k views

Starting a Java activity in Unity3d Android

I wrote a small Java activity extension of UnityPlayerActivity similar to what is described in the Unity docs. It has a method for displaying a song picking interface using an ACTION_GET_CONTENT ...
2
votes
2answers
1k views

What is the best way to check if there is overlap between player and static, non-collidable items in bullet physic engine

I'd like to add non collidable objects (eg: power ups, items, ...) in a game world using Bullet Physics Engine and to know if there is collision between player and them. Some info : there is a lot ...
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 ...
8
votes
5answers
566 views

What implications does JIT (javascript/canvas) vs. AOT (Flash) have in terms of browser based game performance?

In my experience, even till this day, I still see more of a visual lag in entity movement / animation in JavaScript (Canvas) based games than I do in Flash based games. Why is this - what exactly is ...
3
votes
3answers
2k views

How many BasicEffects do you have in a Game? What is the best way to render multiple objects/shapes at once?

I'm trying to understand 3D rendering and it seems that everytime you render a new object (A 3D Cube or something) you need to have a new BasicEffect for each Box you render unless you want the exact ...
-4
votes
2answers
289 views

Read only array, deep copy or retrieve copies one by one? (Performance and Memory) [closed]

The question is asked regarding an environment with garbage collection.(Java, AS3) I am writing a level editor using MVC and the view needs to have read only access to the data in the model for ...
0
votes
3answers
434 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 ...
4
votes
3answers
363 views

How do I know if I've gone too far with processing things in a game?

A common programming quote I see every day is: Premature optimization is the root of all evil! I admit I'm one of those guys that like to do premature optimization in a pretty obssessive manner ...
1
vote
0answers
209 views

Updating physics for animated models

For a new game we have do set up a scene with a minimum of 30 bone animated models.(shooter) The problem is that the update process for the animated models takes too long. Thats what I do: Each ...
5
votes
1answer
1k views

Javascript Canvas Drawing Efficiency

I have just recently started some experiments with game development in Javascript/HTML5, and so far it has been going pretty well. I have a simple test scene running with some basic input handling, ...
1
vote
2answers
335 views

How to deal with large open worlds?

In most games the whole world is small enough to fit into memory, however there are games where this is not the case, how is this archived, how can the game still run fluid even though the world is so ...
1
vote
1answer
1k views

Using Event Driven Programming in games, when is it beneficial?

I am doing a refresher on ActionScript 3. Other than using rudimentary tools like, Event.ENTER_FRAME and using events to receive input from the user's mouse and keyboard, I find that I rarely use ...
1
vote
3answers
606 views

Will having many timers affect my game performance?

I'm making a game for android, and earlier today I was trying to add some cool stuff to my game. The problem is this thing needs like 5 timers. I build my timers like this: timer += deltaTime; ...
2
votes
2answers
957 views

Simple OpenGL program major slow down at high resolution

I have created a small OpenGL 3.3 (Core) program using freeglut. The whole geometry is two boxes and one plane with some textures. I can move around like in an FPS and that's it. The problem is I face ...
4
votes
1answer
540 views

How to use caching to increase render performance?

First of all I am going to cover the basic design of my 2d tile-based engine written with SDL in C++, then I will point out what I am up to and where I need some hints. Concept of my engine My ...
2
votes
2answers
4k views

How to check battery usage of an iPhone/Android app?

I think the title says Enough. For example Unity can generate you a report how much CPU/GPU power it's using or how fast it's going to drain device battery, but what about the applications developed ...