Debugging is a methodical process of finding and reducing the number of bugs in a game, thus making it behave as expected.

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2
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1answer
439 views

How to profile CPU and GPU performance if I have a monster PC?

I'm going to upgrade my PC soon. I'm worried that I will no longer spot performance losses in my game because of the better specs. I can check memory usage easily, but how do I check and debug CPU ...
1
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1answer
34 views

How to diagnose the problem when the input assembler and the vertex shader look correrct, but the Output Merger is wrong?

I'm porting some OpenGL code to Direct X 11. I ended up with nothing being drawn on the screen. I reverted to a simple program, which I am writing about here. I'm now trying to use the Graphics ...
0
votes
1answer
11 views

LibGDX Table.drawDebug deprecated?

I am following the "Learning LibGDX Game Development" book to make a simple game. I am in the menu creation section where we create a stage and render it with debug borders The book says to use ...
0
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0answers
14 views

Leaderboard Testing on Google Play Services

I have a shared Google Play Developer account so that he allowed me to publish a game app. Next, I want to know if in order to test the online highscore is to upload the APK and publish it first ...
1
vote
1answer
37 views

TypeLoadException when running a Monogame Windows Phone 8 game

Using Monogame, I'm trying to port a game to Windows Phone 8, but I'm having issues getting a basic example to run. When I create a basic Mono project and run it on my phone (to check everything's ...
1
vote
2answers
118 views

2D Lighting Glitch

I've been working on a game in Java, and recently I decided to try out my game on a netbook just to see how it would run. While I do get a constant and decent FPS, it appears that my lighting ...
0
votes
0answers
53 views

Libgdx project “Not Responding” when in debug mode

So the problem I am encountering is that whenever I attempt to debug my Libgdx desktop project and Android project the "app" is constantly "frozen" or "Non responding." By this I mean that I cannot ...
2
votes
1answer
145 views

Is there a way to view all colliders in a unity project at runtime (after the game have been deployed)?

I'm have created a small Unity project but physics has weird behavior (bug). Unfortunately it only happens on some specific hardware (after build), not on development machine. I don't know what is ...
1
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1answer
142 views

What's the best way to handle numerous recurring log entries in game loop?

I have a custom logging system, use of which is scattered all over the engine and game. The system is linked to a "LogStore" that has an std::vector<string> logs[NUM_LOG_TYPES] - each vector ...
1
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0answers
706 views

Checkers make move and take move algorithm

I'm coding a checkers game and I encountered a problem and I'm 99% sure is about how the move is done and taken back. The structure of my game data is: an 8x8 array containing my board squares. ...
0
votes
1answer
176 views

Level loading works in Unity editor, but quits when deployed

In my level selection screen, all but the first level start out locked. When I click on a level, it loads perfectly in Unity editor. However, when I build the game on a real device, the game stops as ...
3
votes
2answers
164 views

Efficient way to output/display debugging data in a window

I'm writing a program in Visual Studio, C++ with OpenGL and for the first time, I think it will be beneficial to see some live data on top of my display/render window. To give some scope, I'm ...
0
votes
1answer
172 views

DirectX debugging: Graphics Pipeline Stages: Input Assembler: “No mesh available for stage”

My question is basically why VS2012 tells me that there is no mesh available for the Input Assembler stage because if I click on the DeviceContext next to the Draw call in the Grahics Event List the ...
0
votes
1answer
1k views

Unity/VS debugging only with UnityVS?

Hi, this one thing isn't clear to me: Is it possible, to debug C# of Unity 4.3 with Visual Studio 2013 without any plugin? If no, what or how else should I debug then?
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0answers
385 views

Unity game debugging on Xcode

This question has two parts: 1. How to get meaningful information out of Xcode crash logs? The game runs fine on the editor but when running on an iOS device it crashes and then gives information ...
0
votes
1answer
78 views

How to debug Android App Eclipse? [closed]

Ok. So while this isnt a programming question. I wanted to know how do people debug apps? How do you view log cat, and where these exceptions are thrown etc? And do I need to run the app on the ...
0
votes
1answer
43 views

Android Live Testing

I am making a game for android and in it I am using sensors which are not available in the emulator. At the moment I am connecting my device and transferring the apk, then installing to test but that ...
-1
votes
2answers
125 views

Velocity deacceleration working incorrectly

Basicly, I've tried to code velocity into my game, which works sort of. The deaccelaration works sort of, but not correctly. The problem is, that the positive values, decreases just fine and dandy to ...
1
vote
1answer
70 views

How can I show information from a variety of sources in my debug menu?

I'm creating a debug menu, and I want to be able to show a lot of information (variables) on that menu. This information will come from a lot of classes (instances). How can I show a lot of ...
4
votes
1answer
777 views

Bullet physics debug drawing not working

Background I am following on from this question, which isn't answered yet. Basically I have a cube and a UVSphere in my scene, with UVSphere on the top of the cube without touching the cube. Both ...
0
votes
1answer
96 views

Displaying performance data per engine subsystem

Our game (Android based) traces how long it takes to do the world logic updates, and how long it takes to a render a frame to the device screen. These traces are collected every frame, and displayed ...
5
votes
1answer
120 views

Is it possible to show vertex information in tables in VS2012 like in PIX?

In PIX I was able to watch the objects' vertex data at different stages in tables, like before vertex shader, between vertex and pixel shaders, and so on. Can you see this in Visual Studio 2012 ...
3
votes
1answer
2k views

Android emulator with acceleration and gyroscope simulation

Is there an Android emulator that is compatible with eclipse that can simulate acceleration and tilting of a mobile device?
-2
votes
1answer
101 views

Help me debug my 3-d collision code [closed]

I have been havaing a problem doing 3-d collision in a game i have been trying to make for several weeks now. What i am trying to do is prevent a PlayerModel object from colliding with Obstacle(cube) ...
0
votes
2answers
167 views

Why does my sprite animation sometimes runs faster? [closed]

I don't know why each time I call the Update_Animation function, my sprite animation runs faster. Is it caused by gameTime? How to fix it? Here's the relevant code: class Character { // ...
2
votes
1answer
358 views

Perlin Noise for game terrain; math error (unexpected breaks in terrain (3D grid))

So, I'm learning how to generate terrain using Perlin Noise, and I came across this code: http://stackoverflow.com/questions/4753055/perlin-noise-generation-for-terrain/4753123#4753123 PerlinNoise.h ...
4
votes
1answer
681 views

How do I debug two android devices simultaneously in Eclipse?

I have a multiplayer game which should be tested on two devices at the same time, if possible, with debugging. Can eclipse do this? If so, how?
0
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0answers
621 views

Limited Screen Switching Count Memory Issue

When making my simple app for revisions to update the latest changes, I test it first between the device (Google Nexus 7) and desktop using Eclipse IDE. I made eleven screens for the game in terms of ...
8
votes
1answer
297 views

Curious Transparent Holes Render Artifact

So I'm trying to implement "smooth" terrain in my block engine by giving each surface block a heightmap. Basically, what I do to generate these "heightmaps" for each block is I generate the heights ...
4
votes
6answers
312 views

Object oriented approach to debug mode

I'd like to introduce a way to turn off/on debug messages and in-game tooling (tweak menus, for example) without non-game related branches, e.g: if(DEBUG_MODE) { // show tweak menu // some ...
3
votes
3answers
2k views

Can I debug XNA Xbox 360 games on my PC?

If I made an Xbox 360 game with XNA, would I need to debug it on the Xbox 360 as I was coding it? Or would there be a small emulator on my computer to debug it?
4
votes
1answer
345 views

Android Java: Way to effectively pause system time while debugging?

In my project, I call nanoTime and use that to get a deltaTime which I pass to my entities and animations. However, while debugging (for example, stepping through my code), the system time on my ...
1
vote
1answer
204 views

Can I limit the number of shader units used by my video card?

Can I limit the number of shader units used by my video card? (A shader unit is the part of the hardware which can execute a shader program, where each unit runs in parallel). I'm interested in this ...
9
votes
4answers
5k views

Debugging Shader Code?

I'm writing a game engine, and when I use a perspective camera I get a black screen. I am not going to ask exactly why this is because there would be a lot of code to share and, frankly, I think ...
4
votes
2answers
929 views

How do I get a new license for gDEBugger after the 1 free year?

I downloaded the gDEBugger from gremedy over a year ago, with their one year free license. The license has since expired and their site says that I'll be presented with the option for 1 year free ...
3
votes
5answers
3k views

Why do my point lights disappear when another nearby light is above 1.85 range?

I'm making a game with a dungeon setting in Unity 3D. Many torches line the walls. I'm using a point light over each torch to simulate the flame. However, when two torches are across from each other, ...
2
votes
2answers
231 views

Debug data visualization best practices

I found debugging games especially hard for some obvious reasons. It's hard to monitor some internal values in dynamic, conditional breakpoints helps somehow, but only to detect some specific ...
4
votes
3answers
759 views

Debugging a custom content pipeline processor in XNA?

I'm working with a custom made content pipeline designed to work with the program Tiled (using the TiledLibrary found here). I am running into trouble with the MapProcessor class in the custom content ...
4
votes
1answer
1k views

Ogre FPS Overlay

I want to make a FPS and debugging info overlay similar to the one in the bottom of this image http://www.ogre3d.org/tikiwiki/dl1692&display but without using SDKTrays or OIS, can anyone give me a ...
-3
votes
1answer
890 views

xml file save/read error (making a highscore system for XNA game)

i get an error after i write player name to the file for second or third time (An unhandled exception of type 'System.InvalidOperationException' occurred in System.Xml.dll Additional information: ...
1
vote
2answers
1k views

Can't get debug spew for Direct3D9

The Direct3D9 debug runtime's debug output does not appear to be working correctly. I linked against d3dx9d.lib instead of d3dx9.lib and defined D3D_DEBUG_INFO and I also set the debug runtime on in ...
1
vote
2answers
381 views

XNA 4.0 problem Initializing Instanced Classes in for loop

Okay so this is kind of weird, I have some code that creates particle.cs instances public void AddParticle() { for (int i = 0; i < Density; i++) { particle = new ...
1
vote
1answer
220 views

How can I profile and debug my usage of D3D10?

I've been working on D3D 10 for about 6 months and I have accumulated a basic framework. The thing is I get frame rate spikes. Even when I have a simple cube on the screen each side with its own ...
1
vote
1answer
411 views

How to debug easily an 2D arcade game?

I am trying to learn pygame. In order to do that, I have downloaded one of their examples : http://rpg-world.googlecode.com/files/rpg-world-src-0.93.tar.gz And started to run it in debug mode. ...
2
votes
1answer
212 views

How to debug pyglet/opengl bus errors

I'm using pyglet for game development, and sometimes encounter "bus errors". They are not consistently repeatable, and whenever I try to do simple debugging (eg move/remove variables, etc), the errors ...
0
votes
1answer
75 views

Why might my Object Attributes become linked after refactoring?

As part of a game design class I'm taking this semester, I'm developing the basics of a game engine. I shared what I had in the GameDev chatroom, earlier, and everything was working as expected. ...
5
votes
4answers
666 views

Debugging tips? [closed]

I'm new to games programming and I'm working on a C#/XNA project. Something I'm spending a lot of time on is debugging. Obviously as games run in a loop finding the exact iteration that a bad ...
0
votes
1answer
174 views

Under what circumstances will a PIX 'Render' be different to the actual 'render'?

I am trying to implement dual-pass alpha sorting using Ogre material scripts, as part of my debugging attempts I want to compare two PIX captures, but when I attempt to debug a pixel in PIX, ...
6
votes
2answers
980 views

Scrolling Box2D DebugDraw

I'm developing a game using Box2D (javascript implementation - Box2DWeb), and I would like to know how I can pan the debug draw. I know the usual answer is - don't use debug draw, it's just for ...
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vote
2answers
153 views

How can I automate high-level user interactions to test correctness of my game?

I am trying to automatically simulate the game experience in my programming game. I think Expect is the way to do it because it creates its own tty for the process, becoming independent process of the ...