The frequency which an imaging device produces unique consecutive images. It is most often expressed in frames per second (FPS).

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2
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1answer
678 views

Frame independent acceleration

To make my game fps independent I move entities with pos += speed * time where time is the delta time since last frame. That works perfectly well with speed but how do you do that with ...
3
votes
1answer
225 views

Framerate control and physics engines?

I am reading this article on how to control the framerate and physics calculations. But in the game I am writing, I use a third party physics library and the only thing I do to update my physics is ...
0
votes
4answers
4k views

Problem trying to lock framerate at 60 FPS

I've written a simple class to limit the framerate of my current project. But it does not work as it should. Here is the code: void FpsCounter::Process() { deltaTime = ...
4
votes
5answers
366 views

Game Loop Problem - Growth and Recharge as Integer Values

I have a question about game loops. I understand that you shouldn't have a static loop, say 100ms and set something's speed to 1px/frame so it moves 10px/sec. You should have a speed and multiple that ...
-3
votes
2answers
518 views

Is Android not good for game development? [closed]

As I know Android is running on Java VM on top of Linux kernel. These so many layers may lower down the performance (FPS,etc.). Is Android still good for game development then?
4
votes
4answers
469 views

Is a frame-rate jump in my C++ iPhone game a show stopper and how do I find its cause?

Every 5-10 minutes there's a noticeable frame-rate hiccup in my game. Other than that my game runs very smoothly - again it's just one quick little jump every 5-10 minutes. Is this something I need to ...
2
votes
1answer
3k views

in iOS, does CADisplayLink automatically control the app's 'timestep'?

I'm writing an iOS game that uses OpenGL ES 2.0. I have my 'OpenGLView' which contains a - (void)setupDisplayLink { CADisplayLink* displayLink = [CADisplayLink displayLinkWithTarget:self ...
0
votes
3answers
636 views

How does a game's frame rate change for each missed vsync?

I seem to remember reading somewhere that a game's frame rate is halved each time it misses a vsync. In other words, the number of frames per second decreases to 1/2, 1/4, and 1/8 the normal rate for ...
6
votes
3answers
1k views

What are “frame rate” and “fps?”

Can someone give me a detailed explanation about frame rate and fps concepts?
2
votes
1answer
387 views

How can I get my objects to move at the same speed regardless of frame rate?

I tried using the methods on lazyfoo's site for frame rate independence. One problem I'm having though is that my game is running at different speeds on different computers. The differences are ...
7
votes
2answers
5k views

How do I enable higher FPS in XNA 4.0?

I created a FpsCounter DrawableGameComponent (linked to code, it's longish). It works great: It displays 60.0 fps normally. If I artificially slow down the game loop, it drops. My 'game' at the ...
2
votes
1answer
381 views

Why am I having these weird framerate issues with OpenGL on Windows?

I'm using OpenGL on windows (have been for a while now), and I've come across a strange issue. Once every so often, the rate at which frames are presented on the screen drops to roughly 10 fps. ...
35
votes
8answers
18k views

How'd they do it: Millions of tiles in Terraria

I've been working up a game engine similar to Terraria, mostly as a challenge, and while I've figured out most of it, I can't really seem to wrap my head around how they handle the millions of ...
-3
votes
1answer
388 views

Options available to a programmer on the Main Game Loop [closed]

Could someone please give me some insight into each one of the four topics listed below. I have a good idea about what passive and active rendering are, and that the use of active rendering is more ...
8
votes
1answer
1k views

Separating logic/update from render/drawing code in a single thread using sleep

I've read that the speed of game objects should not be hindered by FPS but instead should be based on time. How can I seperate the update/draw code to maximize performance without limiting the drawing ...
0
votes
1answer
714 views

2D game physics, doing it right

I have a ball that you can make jump, I have a sneaking suspicion I'm doing this wrong. It works now, to the extend that gravity pulls the object down toward the ground, but I'm having trouble ...
5
votes
4answers
823 views

How to make game appear to run faster?

I believe I read somewhere that there is a technique which will make games appear more smooth than they are. I believe it is some visual trick, but I don't remember which one. (It is be something like ...
3
votes
2answers
1k views

Framerate independence

I'm building a physics engine in OpenGL, and I'm a little bit confused on how framerate independence is achieved. At the moment I'm using glutTimerFunc to cap the framerate at 30 FPS. Is there a ...
7
votes
3answers
2k views

Should frame rate affect the speed in a game engine?

I am writing a 2D game engine for fun. I am able to perform animation using the engine. However, if I change the frame rate (frames per second) the speed of the animation changes. I have never used ...
11
votes
5answers
3k views

Working with lots of cubes. Improving performance?

Edit: To sum the question up, I have a voxel based world (Minecraft style (Thanks Communist Duck)) which is suffering from poor performance. I am not positive on the source but would like any possible ...
6
votes
8answers
419 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 ...
5
votes
2answers
5k views

Constant game speed independent of variable FPS in OpenGL with GLUT?

I've been reading Koen Witters detailed article about different game loop solutions but I'm having some problems implementing the last one with GLUT, which is the recommended one. After reading a ...
2
votes
4answers
1k views

Flash framerate reliability

I am working in Flash and a few things have been brought to my attention. Below is some code I have some questions on: addEventListener(Event.ENTER_FRAME, function(e:Event):void { if (KEY_RIGHT) ...
6
votes
3answers
4k views

Frame Independent Movement

I've read two other threads here on movement: Time based movement Vs Frame rate based movement?, and Fixed time step vs Variable time step but I think I'm lacking a basic understanding of frame ...
-2
votes
2answers
331 views

Can it be considered that a frame-dependent crosshair is a flaw?

I still play counter strike 1.6/CSS these days, and as you know, when shots are fired, the crosshair expands. When the frame rate drops, this crosshair animation is also affected by the frame rate. ...
4
votes
2answers
478 views

What is the ballpark GL framerate for iPad and iPhone 4?

Does anyone the GL frame rate for iPad and iPhone 4 under the follow conditions: Unlit Non supersampled GLSL texture mapped with two textures. Single quad, 4 vertices Thanks, Doug
5
votes
3answers
3k views

What framerate should I aim for on a mobile phone?

The higher the framerate, the better the game looks, but the faster it drains the battery. What's a happy medium? (I'm making a relatively simple 2D game with sprites moving constantly. I want the ...
5
votes
2answers
524 views

Accuracy and frame-rate in a rhythm game

My question is related with Fixed time step vs Variable time step. But where a fixed frame-rate improve the consistency of a physics based game, is it the case for a rythm game, or wouldn't it be ...
172
votes
9answers
43k views

Fixed time step vs Variable time step

What is better for games when developing game loops, fixed time steps or variable time steps? What type of games are better with one or the other? Variable time steps: With variable time step, I ...
8
votes
9answers
2k views

Large FPS vs consistent FPS

When optimizing the frame rate of a game, when should I focus on a large FPS and when should I focus on a consistent frame rate. This is often a hotly contested issue, so please note I'm not asking ...
10
votes
6answers
4k views

Make pygame's frame rate faster

By profiling my game, I see that the vast majority of the execution time of my hobby game is between the blit and the flip calls. Currently, it's only running at around 13fps. My video card is fairly ...